THE SUN HARDWARE REFERENCE
                    compiled by James W. Birdsall
                       ([email protected])

                                PART I
                                ======
                               OVERVIEW
                             CPU/CHASSIS

OVERVIEW
========

  This primary focus of this document is to cover older Sun-badged
hardware in detail sufficient to be useful to buyers and collectors of
used Sun hardware, much of which comes without documentation. Details on
hardware commonly used with Suns, especially hardware specifically
designed for Suns, are also included where available. The focus is
generally on older equipment, since information on newer equipment is
more readily available, from Sun itself if nowhere else. In particular,
no effort is made to keep up with Sun's introduction of new SPARC
models or Mbus modules.

  Note that there is no warranty of any kind on the information in this
document. It has been assembled from a variety of sources of varying
reliability. Efforts have been made to exclude information known to be
incorrect, and to include only information deemed reasonably reliable,
but there is no guarantee on any of it, especially since official Sun
documents occasionally contradict each other.

  This document is copyright (c) 1995 by James W. Birdsall. You may
distribute it freely in unmodified form.

  THIS DOCUMENT IS A WORK IN PROGRESS. I still have a lot of
information which I have not had time to integrate yet. In addition, if
you have documentation for systems or boards not listed here, speak up!
I would really like to get ahold of an *old* Sun Field Engineer's Handbook.
Henry Bryant of Sun's Atlanta office kindly donated one that covers
Sun-3's, 386i's, and Sun-4's, but I'm still looking for an old one that
covers Sun-2's. Even the opportunity to borrow one would be appreciated.

  This document is available via anonymous FTP from ftp.picarefy.com in
/pub/Sun-Hardware-Ref as a .tar.Z, .zip, or individual parts in the
parts directory. It is also available from ftp.netcom.com in
/pub/ru/rubicon/sun.hdwr.ref.

  This document is organized into the following sections:

                            *** PART I ***
OVERVIEW
CPU/CHASSIS
Sun-1, Sun-2, Sun-3, Sun 386i, Sun-4/SPARC
       General descriptions of the models, including
       processor/fpu/speed, bus, chassis type, OS support, etc.
Processor Data
       Info on SuperSPARC, microSPARC, etc. SPARC Register Overview.

                           *** PART II ***

FAQ
ROM Monitors
       How to use the ROM monitor built into every Sun (boot
       instructions and other tips).
Using a Terminal as Console
       Notes on using a serial terminal instead of a Sun framebuffer
       and keyboard.
Memory Display on Startup
       How much memory a system has.
Miscellaneous Questions and Answers
Facts in Search of a Home
Miscellaneous Pinouts
SIMM Compatbility Chart

                           *** PART III ***

BOARDS
crossreference by bus, CPU/motherboard, SPARC modules
       Descriptions of boards by type and part number, including
       pinouts, jumpers, DIP switch settings, and LEDs.

                           *** PART IV ***

BOARDS (cont'd)
memory, video, SCSI, non-SCSI disk controllers, tape controllers,
Ethernet, serial/parallel/other commo, floating-point/system
accelerator, backplanes, other
       Descriptions of boards by type and part number, including
       pinouts, jumpers, DIP switch settings, and LEDs.

                            *** PART V ***

DISKS
SMD, MFM, ESDI, SCSI
       Descriptions of models commonly used, including jumpers and
       switch settings.
KEYBOARDS
Types 1-5c
       Descriptions of types of keyboards, what CPUs they work with,
       and any configuration information.
Alternatives
       Ergonomic keyboards.
MICE
Sun-1, Sun-2, Sun-3, Sun-4
       Descriptions of types of mice, what CPUs they work with, and any
       configuration information.
Alternatives
       Trackballs, etc.
MONITORS
TTL mono, ECL/TTL mono, color
       Descriptions of types of monitors, what video boards they work
       with, and any configuration information.
FLOPPY DRIVES
       Descriptions of models commonly used, including jumpers and
       switch settings.
TAPE DRIVES
9-track, QIC-11, QIC-24
       Descriptions of models commonly used, including jumpers and
       switch settings.

                           *** PART VI ***

APPENDICES
Cardcage configuration tables
       What cards go in which slots in which machines.

                           *** PART VII ***

APPENDICES (cont'd)
Repairs and Modifications
       Repair and modification information as contributed by various
       net.people.
Part number index
       Index of all known part numbers, with references to larger
       descriptions, if any, in the main body
Announcement Dates/List Prices
       Announcement dates and list prices for various configurations.
Author's Notes
       Miscellanea.
Bibliography/Acknowledgments
       Contributors, and documents used in compiling this reference.


CPU/CHASSIS
===========

  For each model listed below, whatever information is available is
given, in the following order:

  Processor: The microprocessor followed by its clock speed in MHz. The
floating point coprocessor (FPU), if any, followed by whatever
information is available about the MMU, including the number of hardware
contexts. Lastly, various speed ratings, as available: MIPS (Millions of
Instructions Per Second, aka Meaningless...), MFLOPS (Millions of
FLoating-point OPerations per Second), SPECmark89, and/or
SPECint92/SPECfp92/SPECintRate92/SPECfpRate92. Note that some SPARC
processors are referred to by name; information on these is available in
the "Processor Data" section.

  CPU or motherboard: The Sun part number of the CPU board or
motherboard.

  Chassis type: "Rackmount" chassis, as the name suggests, are designed
to fit into a standard 19" equipment rack. They usually require
clearance over and under the chassis for cooling. "Pizza box" chassis
are intended to sit on a desktop, typically underneath the monitor; they
are low, wide, and deep. Older pizza boxes (2/50, 3/75, 3/50, and 3/60)
are much wider than they are deep; newer ones are square (3/80,
SPARCstation 1, 1+, 2, etc.). Some older pizza boxes (mostly the 3/50)
have a 'dimple top', a case top with a circular depression that allows
the chassis to serve as a tilt/swivel monitor base directly. 9-slot
Multibus and 12-slot VME (and probably 6-slot VME as well) "deskside"
chassis are wide towers that must stand on the floor. 3-slot VME
"deskside" chassis can stand on the floor as narrow towers or lie on
their sides on a desktop as tallish pizza boxes. "Lunchbox" chassis are
small rectangular boxes the size of a couple large hardcover books
stacked. "Monitor" chassis (SPARCstation SLC, etc.) have the motherboard
in the back of the monitor.

  Bus: Whatever bus or busses the machine has. Sun has, at various
times, used Multibus, VMEbus, ISA, SBus, Mbus, and XDBus.

  Memory: The amount of physical memory the machine can take, if known,
followed by the maximum size of the machine's virtual memory space, if
known, followed by the cycle time for physical memory, if known, and
finally details of any on-chip or off-chip caches, if known. The caches
on the Motorola 68020 and 68030 and the Intel 80386 are not described,
since information on these chips is widely known. To save space, the
on-chip caches of various common SPARC processors are described in the
"Processor Data" section.

  Notes: General information which does not belong under other
headings.

  Not all models shown in the Announcement Date/List Price section in
the appendix are described in this section. In particular, models which
differ only in peripherals have been excluded.

   Sun-1
   -----

OVERVIEW

  Sun-1's were the very first models ever produced by Sun. The earliest
ran Unisoft V7 UNIX; SunOS 1.x was introduced later. According to some
sources, fewer than 200 Sun-1's were ever produced; they are certainly
rare. The switch from Motorola 68000's to 68010's occurred during the
Sun-1's reign. Some models are reported to have 3Mbit Ethernet taps as
well as 10Mbit.

  68000-based Sun-1's are not supported by SunOS. The last version of
SunOS to support Sun-1's may be the same as the last version to support
Sun-2's, since the 100U CPU boards are the same part.

  From [email protected] (../Steven):

       [The Sun-1] did not have the DVMA of the sun-2 architecture.
       There was an even earlier board that had the 68000, not the
       68010. The 68000 board was licensed by Stanford to several folks
       (can't recall names). The original cisco cpu was a slightly
       upgraded 68000 version. Andy Bechtolsheim was using SUDS on the
       triple-I in the CS Dungeon (Margaret Jacks Hall) when my boss
       asked him to modify the sun board to accept 256k ram chips. I
       handed Andy a pencil and the schematics and he scribbled the
       mods on it. I took the mods, and with exacto knife and jumpers,
       modified a sun board for the 256k chips. Len Bosack then took
       the mods and relaid out the PC. That board was the first cisco
       cpu, and was also produced internally to Stanford.

       [...]

       The original sun lacked the DVMA and thus needed Multibus
       memory. Their "ar" tape controller design thus included 256k of
       Multibus memory. When upgraded to a sun2, one had to switch this
       ar-resident memory off since it would conflict with the DVMA
       memory on the sun2 P2 (memory bus).

MODELS

   Sun-1

       Processor(s):   68000
       Notes:          Large black desktop boxes with 17" monitors.
                       Uses the original Stanford-designed video board
                       and a parallel microswitch keyboard (type 1) and
                       parallel mouse (Sun-1).

   100
       Processor(s):   68000 @ 10MHz
       Bus:            Multibus, serial
       Notes:          Uses a design similar to original SUN (Stanford
                       University Network) CPU. The version 1.5 CPU can
                       take larger RAMs.

   100U
       Processor(s):   68010 @ 10MHz
       CPU:            501-1007
       Bus:            Multibus, serial
       Notes:          "Brain transplant" for 100 series. Replaced CPU
                       and memory boards with first-generation Sun-2
                       CPU and memory boards so original customers
                       could run SunOS 1.x. Still has parallel kb/mouse
                       interface so type 1 keyboards and Sun-1 mice
                       could be connected.

   170
       Processor(s):   68010?
       Bus:            Multibus?
       Chassis type:   rackmount
       Notes:          Server. Slightly different chassis design than
                       2/170's

   Sun-2
   -----

OVERVIEW

  Sun-2's were introduced in the early 1980's and were Sun's first
major commercial success. While not as popular or as common as the later
Sun-3's, they did well and there are still quite a few in circulation in
the home/collector-used market.

  All Sun-2's are based on the Motorola 68010 and run SunOS. The last
version of SunOS to support Sun-2's was 4.0.3. Early Sun-2's were
Multibus; later models were VME, which Sun continued to use through the
Sun-3 era and well into the Sun-4 line.

  One of the hardest parts of restoring a Sun-2 is finding OS tapes for
it. The hardware is usually still in fine working order, but tapes -- if
you can even find any -- are sometimes unreadable after so many years.
See author's notes in the appendices.

MODELS

   2/120
       Processor(s):   68010 @ 10MHz
       CPU:            501-1007/1051
       Chassis type:   deskside
       Bus:            Multibus, 9 slots
       Memory:         7M physical with mono video, 8M without
       Notes:          First machines in deskside chassis. Serial
                       microswitch keyboard (type 2), Mouse Systems
                       optical mouse (Sun-2).

   2/170
       Processor(s):   68010 @ 10MHz
       CPU:            501-1007/1051
       Chassis type:   rackmount
       Bus:            Multibus, 15 slots
       Memory:         7M physical with mono video, 8M without
       Notes:          Server.

   2/50
       Processor(s):   68010 @ 10MHz
       CPU:            501-1141/1142/1143
       Chassis type:   wide pizza box
       Bus:            VME, 2 slots
       Memory:         7M physical
       Notes:          Optional SCSI board (model name is SCSI-2
                       because it is the second SCSI design; the first
                       was for 2/1xx's) sits on memory expansion board
                       in second slot. CPU board has 1, 2, or 4M,
                       Ethernet, two serial ports. The (type 2)
                       keyboard and mouse attach via an adapter that
                       accepts two modular plugs and attaches to a DB15
                       port.

   2/130
   2/160
       Processor(s):   68010
       CPU:            501-1144/1145/1146
       Chassis type:   deskside
       Bus:            VME, 12 slots
       Memory:         7M physical
       Notes:          First machine in 12-slot deskside VME chassis.
                       Has four-fan cooling tray instead of six as in
                       later machines, which led to cooling problems
                       with lots of cards. Also has only four P2 memory
                       connectors bussed instead of six. 2/160
                       upgradeable to a 3/160 by replacing the CPU
                       board. No information on the differences between
                       the 2/130 and the 2/160.

   Sun-3
   -----

OVERVIEW

  Sun switched to using the Motorola 68020 with the introduction of the
Sun-3's.  A few later models had 68030's, but by that time Sun was
already moving toward SPARC processors. All models either have a 68881
or 68882 FPU installed stock or at least have a socket for one. All
models which are not in pizza box chassis are VMEbus. Two out of three
pizza box models have a "P4" connector which can take a framebuffer; the
exception is the 3/50.

  Support for Sun-3's was introduced in SunOS 3.0. The last version of
SunOS to support Sun-3's was 4.1.1U1.

  During the Sun-3 era, Sun introduced the handy practice of putting
the model number on the Sun badge on the front of the chassis.

  There are two different kernel architectures in the Sun-3 model line.
All 68020-based models are "sun3" architecture; 68030-based models (the
3/80 and 3/4xx) are "sun3x" architecture.

MODELS

   3/160
       Processor(s):   68020 @ 16.67MHz, 68881, Sun-3 MMU, 8 hardware
                       contexts, 2 MIPS
       CPU:            501-1074/1096/1163/1164/1208
       Chassis type:   deskside
       Bus:            VME, 12 slots
       Memory:         16M physical (documented), 256M virtual, 270ns cycle
       Notes:          First 68020-based Sun machine. Uses the 3004
                       "Carrera" CPU, which is used in most other Sun
                       3/1xx models and the 3/75. Sun supplied 4M
                       memory expansion boards; third parties had up to
                       32M on one card. SCSI optional. One variant of
                       the memory card holds a 6U VME SCSI board; there
                       is also a SCSI board which sits in slot 7 of the
                       backplane and runs the SCSI bus out the back of
                       the backplane to the internal disk/tape (slot 6
                       in very early backplanes). CPU has two serial
                       ports, Ethernet, keyboard. Type 3 keyboard plugs
                       into the CPU; Sun-3 mouse plugs into the
                       keyboard. Upgradeable to a 3/260 by replacing
                       CPU and memory boards.

   3/75
       Processor(s):   68020 @ 16.67MHz, 68881, Sun-3 MMU, 8 hardware
                       contexts, 2 MIPS
       CPU:            501-1074/1094/1163/1164
       Chassis type:   wide pizza box
       Bus:            VME, 2 slot
       Memory:         16M physical (documented), 256M virtual, 270ns cycle
       Notes:          Optional SCSI sits on memory expansion board in
                       second slot.

   3/140
       Processor(s):   68020 @ 16.67MHz, 68881, Sun-3 MMU, 8 hardware
                       contexts, 2 MIPS
       CPU:            501-1074/1094/1163/1164/1208
       Chassis type:   deskside
       Bus:            VME, 3 slots
       Memory:         16M physical (documented), 256M virtual, 270ns cycle

   3/150
       Processor(s):   68020 @ 16.67MHz, 68881, Sun-3 MMU, 8 hardware
                       contexts, 2 MIPS
       CPU:            501-1074/1094/1163/1164/1208
       Chassis type:   deskside
       Bus:            VME, 6 slots
       Memory:         16M physical (documented), 256M virtual, 270ns cycle

   3/180
       Processor(s):   68020 @ 16.67MHz, 68881, Sun-3 MMU, 8 hardware
                       contexts, 2 MIPS
       CPU:            501-1074/1094/1163/1164/1208
       Chassis type:   rackmount
       Bus:            VME, 12 slots
       Memory:         16M physical (documented), 256M virtual, 270ns cycle
       Notes:          Rackmount version of 3/160. Upgradeable to a
                       3/280 by replacing the CPU and memory boards.
                       Very early backplanes have the special SCSI
                       hookup on slot 6 rather than 7.

   3/110
       Processor(s):   68020
       CPU:            501-1134/1209
       Chassis type:   deskside
       Bus:            VME, 3 slots
       Notes:          Similar to the "Carerra" CPU, but has 8-bit
                       color framebuffer (cgfour) on board and uses 1M
                       RAM chips for 4M on-CPU memory. Code-named
                       "Prism".

   3/50
       Processor(s):   68020 @ 15.7MHz, 68881 (socket for
                       501-1075/1133/1162, installed for 501-1207),
                       Sun-3 MMU, 8 hardware contexts, 1.5 MIPS
       CPU:            501-1075/1133/1162/1207
       Chassis type:   wide pizza box
       Bus:            none
       Memory:         4M physical (documented), 256M virtual, 270ns cycle
       Notes:          Cycle-stealing monochrome frame buffer. 4M
                       memory maximum stock, but third-party memory
                       expansion boards were sold, allowing up to at
                       least 12M. No bus or P4 connector. Onboard SCSI.
                       Thin coax or AUI Ethernet. Code-named "Model
                       25".

   3/60
       Processor(s):   68020 @ 20MHz, 68881 (stock), Sun-3 MMU,
                       8 hardware contexts, 3 MIPS
       CPU:            501-1205/1322/1334/1345
       Chassis type:   wide pizza box
       Bus:            P4 connector (not same as P4 on 3/80)
       Memory:         24M physical, 256M virtual, 200ns cycle
       Notes:          VRAM monochome frame buffer for 501-1205/1334.
                       Optional color frame buffer (can run mono and
                       color simultaneously) on P4 connector. Onboard
                       SCSI. SIMM memory (100ns 1M x 9 SIMMs). High
                       (1600 * 1100) or low (1152 * 900) resolution
                       mono selectable by jumper. Thin coax or AUI
                       Ethernet. Code-named "Ferrari". 4M stock on
                       501-1205/1322, 0M stock on 501-1322/1345.

   3/60LE
       Processor(s):   68020 @ 20MHz, 68881 (stock), Sun-3 MMU,
                       8 hardware contexts, 3 MIPS
       CPU:            501-1378
       Bus:            P4 connector (not same as P4 on 3/80)
       Memory:         12M physical, 256M virtual, 200ns cycle
       Notes:          A version of the 3/60 with no onboard
                       framebuffer and limited to 12M of RAM (4M of
                       256K SIMMs and 8M of 1M SIMMs).

   3/260
       Processor(s):   68020 @ 25MHz, 68881 @ 20MHz (stock), Sun-3 MMU,
                       8 hardware contexts, 4 MIPS
       CPU:            501-1100/1206
       Chassis type:   deskside
       Bus:            VME, 12 slot
       Memory:         64M (documented) physical with ECC, 256M virtual;
                       64K write-back cache, direct-mapped,
                       virtually-indexed and virtually-tagged, with
                       16-byte lines; 80ns cycle
       Notes:          Two serial ports, AUI Ethernet, keyboard, and
                       video on CPU. Video is mono, high-resolution
                       only. Sun supplied 8M memory boards. Sun 4/2xx
                       32M boards work up to 128M. First Sun with an
                       off-chip cache. Upgradeable to a 4/260 by
                       replacing the CPU board. Code-named "Sirius".

   3/280
       Processor(s):   68020 @ 25MHz, 68881 @ 20MHz (stock), Sun-3 MMU,
                       8 hardware contexts, 4 MIPS
       CPU:            501-1100/1206
       Chassis type:   rackmount
       Bus:            VME, 12 slot
       Memory:         64M (documented) physical with ECC, 256M virtual;
                       64K write-back cache, direct-mapped,
                       virtually-indexed and virtually-tagged, with
                       16-byte lines; 80ns cycle
       Notes:          Rackmount version of the 3/260. Upgradeable to a
                       4/280 by replacing the CPU board. Code-named
                       "Sirius".

   3/80
       Processor(s):   68030 @ 20MHz, 68882 @ 20MHz, 68030 on-chip
                       MMU, 3 MIPS, 0.16 MFLOPS
       CPU:            501-1401/1650
       Chassis type:   square pizza box
       Bus:            P4 connector (not same as P4 on 3/60)
       Memory:         16M or 40M physical, 4G virtual, 100ns cycle
       Notes:          Similar packaging to SparcStation 1. Parallel
                       port, SCSI port, AUI Ethernet, 1.44M 3.5" floppy
                       (720K on early units?). No onboard framebuffer.
                       Code-named "Hydra". Type-4 keyboard and Sun-4
                       mouse, plugged together and into the machine
                       with a small DIN plug. 1M x 9 30-pin 100ns
                       SIMMs. Boot ROM versions 3.0.2 and later allow
                       using 4M SIMMs in some slots for up to 40M (see
                       Misc Q&A #15).

   3/460
       Processor(s):   68030 @ 33 MHz, 68882, 68030 on-chip MMU,
                       7 MIPS, 0.6 MFLOPS
       CPU:            501-1299/1550
       Bus:            VME
       Memory:         128M physical with ECC, 4G/process virtual,
                       64K cache, 80ns cycle
       Notes:          A 3/260 upgraded with a 3/4xx CPU board. Uses
                       original 3/2xx memory boards.

   3/470
       Processor(s):   68030 @ 33 MHz, 68882, 68030 on-chip MMU,
                       7 MIPS, 0.6 MFLOPS
       CPU:            501-1299/1550
       Chassis type:   deskside
       Bus:            VME
       Memory:         128M physical with ECC, 4G/process virtual,
                       64K cache, 80ns cycle
       Notes:          Rare. Code-named "Pegasus". 8M standard, uses
                       same memory boards as 3/2xx.

   3/480
       Processor(s):   68030 @ 33 MHz, 68882, 68030 on-chip MMU,
                       7 MIPS, 0.6 MFLOPS
       CPU:            501-1299/1550
       Chassis type:   rackmount
       Bus:            VME
       Memory:         128M physical with ECC, 4G/process virtual,
                       64K cache, 80ns cycle
       Notes:          Rare. Code-named "Pegasus". 8M standard, uses
                       same memory boards as 3/2xx.

   3/E
       Processor(s):   68020
       CPU:            501-8028
       Bus:            VME
       Notes:          Single-board VME Sun-3, presumably for use as a
                       controller, not as a workstation. 6U form
                       factor. Serial and keyboard ports. External RAM,
                       framebuffer, and SCSI/ethernet boards
                       available.

   Sun 386i
   --------

OVERVIEW

  The Sun 386i models, based on the Intel 80386 processor, were
introduced when 80386-based IBM PC/AT clones were starting to become
widespread. Intel had finally produced a chip sufficiently capable
(32-bit, among other things) to allow porting SunOS, and using an Intel
processor and an ISA bus offered the ability to run MS-DOS applications
without speed-draining emulation. Unfortunately, they were a dismal
failure.

  Support for Sun-386i's was introduced in SunOS 4.0 (?). The 386i
SunOS releases came from Sun's East Coast division, so 386i SunOS was
not identical to the standard version with the same number. The last
released version of SunOS to support Sun-386i's was 4.0.2; there are a
few copies of 4.0.3Beta (with OpenLook 2.0) floating around.

MODELS

   386i/150
       Processor(s):   80386 @ 20MHz, 80387, 80386 on-chip MMU,
                       3 MIPS, 0.17 MFLOPS
       CPU:            501-1241/1414
       Chassis type:   tower (20"H * 7"W * 16"D)
       Bus:            4 32-bit slots; ISA (3 16-bit, 1 8-bit)
       Memory:         8M physical
       Notes:          Shared code name "Roadrunner" with the /250. The
                       frame buffer was not on the ISA bus. 720K or
                       1.44M 3.5" floppy. A variant of the 150 had the
                       250's external cache.

   386i/250
       Processor(s):   80386 @ 25MHz, 80387, 80386 on-chip MMU,
                       5 MIPS, 0.2 MFLOPS
       CPU:            501-1324/1413
       Chassis type:   tower
       Bus:            4 32-bit slots; ISA (3 16-bit, 1 8-bit)
       Memory:         16M physical, 32K cache
       Notes:          Shared code name "Roadrunner" with the /150. The
                       frame buffer was not on the ISA bus. 720K or
                       1.44M 3.5" floppy.

   486i
       Processor(s):   80486
       Notes:          Code-named "Apache". A very limited quantity of
                       these were supposedly built and shipped to
                       customers just before the Intel-based line was
                       cancelled.


   Sun-4/SPARCstation/SPARCserver/SPARCwhatever
   --------------------------------------------

OVERVIEW

  These machines were initially introduced with model designations in
the same pattern as previous lines: Sun 4/xxx. However, for marketing
purposes, Sun departed from their classic naming scheme with the name
SPARCstation, and has since experimented with alphabetic designations
(e.g. "SPARCstation SLC") before returning to numbered SPARCstations.
Until the SPARCstation 10, however, every model still had a 4/xxx
designation as well, which is displayed by the ROM monitor during
power-up and used by much of Sun's documentation.

  This model line marks the introduction of Sun's own RISC chip, the
SPARC. There have been a number of different implementations of the chip
from various manufacturers, with varying degrees of hardware support for
the instruction set.

  Support for Sun-4's was introduced in SunOS 4.0, although there was a
special variant of SunOS 3.2 for Sun-4's which was shipped with some
very early units. Since this product line is still current, it is still
in general supported by SunOS, which has mutated to become part of
Solaris. Support for some earlier models has been dropped, and some
later models require at least 4.0.3c, 4.1.1, or Solaris 2.x.

  Some of the later models have pictures silkscreened on their CPU
boards.

  Note that MIP/GIP ratings for later models are even more suspicious
than usual for benchmarks.

  There are several kernel architectures in the Sun-4 model line. Where
known, the architecture for each model is listed.

MODELS

   4/260
       Processor(s):   SF9010 @ 16.67MHz, Weitek 1164/1165, Sun-4 MMU,
                       16 hardware contexts, 10 MIPS, 1.6 MFLOPS
       CPU:            501-1274/1491/1522
       Chassis type:   deskside
       Bus:            VME, 12 slot
       Memory:         128M physical with ECC, 1G/process virtual,
                       60ns cycle
       Architecture:   sun4
       Notes:          First SPARC machine. Code-named "Sunrise". Cache
                       much like Sun-3/2xx, uses same memory boards.

   4/110
       Processor(s):   MB86900 @ 14.28MHz, Weitek 1164/1165, Sun-4 MMU,
                       16 hardware contexts, 7 MIPS
       CPU:            501-1199/1237/1462/1463/1464/1465/1512/1513/
                           1514/1515/1516/1517/1656/1657/1658/1659/
                           1660/1661
       Chassis type:   deskside
       Bus:            VME, 3 slot
       Memory:         32M physical with parity, 1G/process virtual,
                       70ns cycle
       Architecture:   sun4
       Notes:          First desktop-able SPARC. CPU doesn't support
                       VME busmaster cards (insufficient room on CPU
                       board for full VME bus interface), so DMA disk
                       and tape boards won't work with it. Originally
                       intended as single-board machine, although there
                       are a few slave-only VME boards (such as the
                       ALM-2 and second ethernet controller) which work
                       with it. Onboard SCSI, two serial ports,
                       Ethernet, keyboard/mouse. "P4" frame buffer
                       could be monochrome or color. Used static column
                       RAM rather than a conventional cache. Code-named
                       "Cobra". CPUs 501-1199/1462/1464/1512/1514/1516/
                       1656/1658/1660 do not have an FPU; 501-1237/
                       1463/1465/1513/1515/1517/1657/1659/1661 have an
                       FPU.

   4/280
       Processor(s):   SF9010 @ 16.67MHz, Weitek 1164/1165, Sun-4 MMU,
                       16 hardware contexts, 10 MIPS, 1.6 MFLOPS
       CPU:            501-1274/1491/1522
       Chassis type:   rackmount
       Bus:            VME, 12 slot
       Memory:         128M physical with ECC, 1G/process virtual,
                       60ns cycle
       Architecture:   sun4
       Notes:          Rackmount version of 4/260.

   4/150
       Notes:          4/110 CPU in a 3/150 chassis.

   SPARCstation 1 (4/60)
       Processor(s):   MB86901A or LSI L64801 @ 20MHz, Weitek 3170,
                       Sun-4c MMU, 8 hardware contexts, 12.5 MIPS, 1.4
                       MFLOPS, 10 SPECmark89
       CPU:            501-1382/1629
       Chassis type:   square pizza box
       Bus:            SBus @ 20MHz, 3 slots (slot 3 slave-only)
       Memory:         64M physical with synchronous parity,
                       512M/process virtual; 64K write-through cache,
                       direct-mapped, virtually indexed, virtually
                       tagged, 16-byte lines; 50ns cycle
       Architecture:   sun4c
       Notes:          Code name "Campus". 1M or 4M x 9 30-pin 100ns
                       SIMMs, in four banks. 720K or 1.44M (?) 3.5"
                       floppy. First supported in SunOS 4.0.3c.

   SPARCserver 1
       Notes:          SPARCstation 1 without a monitor/framebuffer.

   4/330 (SPARCstation 330, SPARCserver 330)
       Processor(s):   CY7C601 @ 25MHz, TI8847, Sun-4 MMU, 16 hardware
                       contexts, 16 MIPS, 2.6 MFLOPS, 11.3 SPECmark89
       CPU:            501-1316/1742
       Bus:            VME
       Memory:         56M/72M physical with synchronous parity, 1G/process
                       virtual, 128K cache, 40ns cycle
       Architecture:   sun4
       Notes:          Onboard SCSI, serial ports. Uses SIMMs. Cache
                       similar to 4/2xx but write-through. Code-named
                       "Stingray". 56M limit only for early versions of
                       ROM. 1M or 4M x 9 30-pin SIMMs, 100ns.

   4/310
       Notes:          4/3xx CPU in a 4/110 chassis.

   4/350
       Notes:          4/3xx CPU in a 3/150 chassis.

   4/360
       Processor(s):   CY7C601 @ 25MHz, TI8847, Sun-4 MMU, 16 hardware
                       contexts, 16 MIPS, 2.6 MFLOPS, 11.3 SPECmark89
       CPU:            501-1316/1742
       Chassis type:   deskside
       Bus:            VME, 12 slots
       Memory:         56M+ physical with synchronous parity, 1G/process
                       virtual, 128K cache, 40ns cycle
       Architecture:   sun4
       Notes:          4/260 upgraded with a 4/3xx CPU. Onboard SCSI,
                       serial ports. Uses SIMMs. Cache similar to 4/2xx
                       but write-through. Code-named "Stingray". Room
                       for SCSI disk in top of chassis. 56M limit only
                       for early versions of ROM. 1M or 4M x 9 30-pin
                       SIMMs, 100ns.

   4/370 (SPARCstation 370, SPARCserver 370)
       Processor(s):   CY7C601 @ 25MHz, TI8847, Sun-4 MMU, 16 hardware
                       contexts, 16 MIPS, 2.6 MFLOPS, 11.3 SPECmark89
       CPU:            501-1316/1742
       Bus:            VME, 12 slots
       Memory:         56M+ physical with synchronous parity, 1G/process
                       virtual, 128K cache, 40ns cycle
       Architecture:   sun4
       Notes:          Onboard SCSI, serial ports. Uses SIMMs. Cache
                       similar to 4/2xx but write-through. Code-named
                       "Stingray". Room for up to four SCSI disks in
                       top of chassis. 56M limit only for early
                       versions of ROM. 1M or 4M x 9 30-pin SIMMs,
                       100ns.

   4/380
       Notes:          4/280 upgraded with 4/3xx CPU.

   4/390 (SPARCserver 390)
       Processor(s):   CY7C601 @ 25MHz, TI8847, Sun-4 MMU, 16 hardware
                       contexts, 16 MIPS, 2.6 MFLOPS, 11.3 SPECmark89
       CPU:            501-1316/1742
       Bus:            VME
       Memory:         56M+ physical with synchronous parity, 1G/process
                       virtual, 128K cache, 40ns cycle
       Architecture:   sun4
       Notes:          Onboard SCSI, serial ports. Uses SIMMs. Cache
                       similar to 4/2xx but write-through. Code-named
                       "Stingray". 56M limit only for early versions of
                       ROM. 1M or 4M x 9 30-pin SIMMs, 100ns.

   4/470 (SPARCstation 470, SPARCserver 470)
       Processor(s):   CY7C601 @ 33MHz, TI8847 (?), 64 hardware
                       contexts, 22 MIPS, 3.8 MFLOPS, 17.6 SPECmark89
       CPU:            501-1381/1899
       Bus:            VME
       Memory:         96M physical, 128K cache
       Architecture:   sun4
       Notes:          Write-back rather than write-through cache,
                       3-level rather than 2-level Sun-style MMU.
                       Code-name "Sunray" (which was also the code name
                       for the 7C601 CPU).

   4/490 (SPARCserver 490)
       Processor(s):   CY7C601 @ 33MHz, TI8847 (?), 64 hardware
                       contexts, 22 MIPS, 3.8 MFLOPS, 17.6 SPECmark89
       CPU:            501-1381/1899
       Bus:            VME
       Memory:         96M physical, 128K cache
       Architecture:   sun4
       Notes:          Write-back rather than write-through cache,
                       3-level rather than 2-level Sun-style MMU.
                       Code-name "Sunray" (which was also the code name
                       for the 7C601 CPU).

   SPARCstation SLC (4/20)
       Processor(s):   MB86901A or LSI L64801 @ 20MHz, 12.5 MIPS, 1.2
                       MFLOPS, 8.6 SPECmark89
       CPU:            501-1627/1680/1720/1748 (1776/1777 ?)
       Chassis type:   monitor
       Bus:            none
       Memory:         16M physical; 64K write-through cache,
                       direct-mapped, virtually indexed, virtually
                       tagged, 16-byte lines
       Architecture:   sun4c
       Notes:          Code name "Off-Campus". 4M x 33 72-pin SIMMs. No
                       fan. 17" mono monitor built in. Has audio,
                       keyboard, A/B serial (in same DB25), SCSI-2, and
                       AUI Ethernet connectors. First supported in
                       SunOS 4.0.3c.

   SPARCstation IPC (4/40)
       Processor(s):   MB86901A or LSI L64801 @ 25MHz, 13.8 SPECint92,
                       11.1 SPECfp92, 327 SPECintRate92, 263
                       SPECfpRate92
       CPU:            501-1689/1835/1870/1974 (1690?)
       Chassis type:   lunchbox
       Bus:            SBus @ 25MHz, 2 slots
       Memory:         48M physical; 64K write-through cache,
                       direct-mapped, virtually indexed, virtually
                       tagged, 16-byte lines
       Architecture:   sun4c
       Notes:          Code name "Phoenix". 1M or 4M x 9 30-pin 100ns
                       SIMMs, three banks. Onboard mono frame buffer.
                       1.44M 3.5" floppy. First supported in SunOS
                       4.0.3c.

   SPARCstation 1+ (4/65)
       Processor(s):   LSI L64801 @ 25MHz, Weitek 3172, Sun-4c MMU,
                       8 hardware contexts, 15.8 MIPS, 1.7 MFLOPS, 12
                       SPECmark89
       CPU:            501-1632
       Chassis type:   square pizza box
       Bus:            SBus @ 25MHz, 3 slots (slot 3 slave-only)
       Memory:         64M (40M?) physical with synchronous parity,
                       512M/process virtual; 64K write-through cache,
                       direct-mapped, virtually indexed, virtually
                       tagged, 16-byte lines; 50ns cycle
       Architecture:   sun4c
       Notes:          Code name "Campus B". 1M or 4M x 9 30-pin 100ns
                       SIMMs, in four banks. 1.44M 3.5" floppy.
                       Essentially same as SPARCstation 1, just faster
                       clock and improved SCSI controller. First
                       supported in SunOS 4.0.3c.

   SPARCserver 1+
       Notes:          SPARCstation 1+ without a monitor/framebuffer.

   SPARCstation 2 (4/75)
       Processor(s):   CY7C601 @ 40MHz, TI TMS390C601A (602A ?), Sun-4c
                       MMU, 16 hardware contexts, 28.5 MIPS, 4.2
                       MFLOPS, 21.8 SPECint92, 22.8 SPECfp92, 517
                       SPECintRate92, 541 SPECfpRate92
       CPU:            501-1638/1744/1858/1859/1912/1926/1989/1995
       Chassis type:   square pizza box
       Bus:            SBus @ 20MHz, 3 slots
       Memory:         64M physical on motherboard/128M total, 64K
                       write-through cache, direct-mapped, virtually
                       indexed, virtually tagged, 32-byte lines
       Architecture:   sun4c
       Notes:          Code name "Calvin". 4M x 9 30-pin 80ns SIMMs, in
                       four banks. Case slightly larger and has more
                       ventilation. (Some models apparently have LSI
                       L64811 @ 40MHz?) Expansion beyond 64M is
                       possible with a 32M card which can take a 32M
                       daughterboard (card blocks SBus slot). First
                       supported in SunOS 4.1.1.

   SPARCserver 2
       Notes:          SPARCstation 2 without a monitor/framebuffer.

   SPARCstation ELC (4/25)
       Processor(s):   Fujitsu MB86903 or Weitek W8701 @ 33MHz, FPU on
                       CPU chip, Sun-4c MMU, 8 hardware contexts,
                       21 MIPS, 3 MFLOPS, 18.2 SPECint92, 17.9
                       SPECfp92, 432 SPECintRate92, 425 SPECfpRate92
       CPU:            501-1861 (1730?)
       Chassis type:   monitor
       Bus:            none
       Memory:         64M physical; 64K write-through cache,
                       direct-mapped, virtually indexed, virtually
                       tagged, 32-byte lines
       Architecture:   sun4c
       Notes:          Code name "Node Warrior". 4M or 16M x 33 72-pin
                       SIMMs. No fan. 17" mono monitor built in. first
                       supported in SunOS 4.1.1c.

   SPARCstation IPX (4/50)
       Processor(s):   Fujitsu MB86903 or Weitek W8701 @ 40MHz, FPU on
                       CPU chip, Sun-4c MMU, 8 hardware contexts,
                       28.5 MIPS, 4.2 MFLOPS, 21.8 SPECint92,
                       21.5 SPECfp92, 517 SPECintRate92, 510
                       SPECfpRate92
       CPU:            501-1780/1810/1959/2044
       Chassis type:   lunchbox
       Bus:            SBus @ 20MHz, 2 slots
       Memory:         64M physical; 64K write-through cache,
                       direct-mapped, virtually indexed, virtually
                       tagged, 32-byte lines
       Architecture:   sun4c
       Notes:          Code name "Hobbes". 4M or 16M x 33 72-pin SIMMs.
                       Onboard GX-accelerated cg6 color framebuffer
                       (not usable with ECL mono monitors, unlike SBus
                       version). Picture of Hobbes (from Watterson's
                       "Calvin and Hobbes" comic strip) silkscreened on
                       motherboard. 1.44M 3.5" floppy. First supported
                       in SunOS 4.1.1 (may require IPX supplement).

   SPARCengine 1 (4/E)
       CPU:            501-8035/8058/8064
       Bus:            SBus, 1 slot
       Notes:          Basically a SPARCstation 1 (or 1+?) with a VME
                       interface and 8K rather than 4K pages. Sold as a
                       6U VME board. Code name "Polaris".

   SPARCserver 6xxMP/xx
       Processor(s):   Mbus modules
       CPU:            501-1686/2055
       Chassis type:   rackmount
       Bus:            VME; SBus @ 20MHz; and Mbus
       Memory:         640M physical
       Architecture:   sun4m
       Notes:          First Mbus-based machine. Cypress/ROSS Mbus
                       modules later upgraded to TI SuperSPARC modules
                       (/xx models). Code name "Galaxy". Up to four
                       CPUs. 4M or 16M x 9 80ns 30-pin SIMMs.

   SPARCclassic (SPARCclassic Server)(SPARCstation LC) (4/15)
       Processor(s):   microSPARC @ 50MHz, 59.1 MIPS, 4.6 MFLOPS,
                       26.4 SPECint92, 21.0 SPECfp92,
                       626 SPECintRate92, 498 SPECfpRate92
       CPU:            501-2200/2262/2326
       Chassis type:   lunchbox
       Bus:            SBus @ 20MHz, 2 slots
       Memory:         96M physical
       Architecture:   sun4m
       Notes:          Sun4m architecture, but no Mbus. Shares code
                       name "Sunergy" with LX. Uniprocessor only. 1.44M
                       3.5" floppy. Soldered CPU chip. Onboard cgthree
                       framebuffer, AMD79C30 8-bit audio chip. Takes
                       pairs of 4M or 16M 60ns SIMMs. First supported
                       in SunOS 4.1.3c.

   SPARCclassic X (4/10)
       CPU:            501-2079/2262/2313
       Notes:          Essentially the same as SPARCclassic, but
                       intended for use as an X terminal (?).

   SPARCstation LX/ZX (4/30)
       Processor(s):   microSPARC @ 50MHz, 59.1 MIPS, 4.6 MFLOPS,
                       26.4 SPECint92, 21.0 SPECfp92,
                       626 SPECintRate92, 498 SPECfpRate92
       CPU:            501-2031/2032/2233/2474
       Chassis type:   lunchbox
       Bus:            SBus @ 20MHz, 2 slots
       Memory:         96M physical
       Architecture:   sun4m
       Notes:          Sun4m architecture, but no Mbus. Shares code
                       name "Sunergy" with SPARCclassic. Uniprocessor
                       only. Takes pairs of 4M or 16M 60ns SIMMs.
                       Soldered CPU chip. Onboard cgsix framebuffer, 1M
                       VRAM standard, expandable to 2M. DBRI 16-bit
                       audio/ISDN chip. First supported in SunOS
                       4.1.3c.

  SPARCstation Voyager
       Processors(s):  microSPARC II @ 60MHz, 47.5 SPECint92,
                       40.3 SPECfp92, 1025 SPECintRate92, 859
                       SPECfpRate92
       Bus:            SBus; PCMCIA type II, 2 slots
       Memory:         80M physical
       Architecture:   sun4m
       Notes:          Portable (laptop?). 16M standard, two memory
                       expansion slots for Voyager-specific SIMMs (16M
                       or 32M). Code-named "Gypsy". 14" 1152x900 mono
                       or 12" 1024x768 color flat panel displays. DBRI
                       16-bit audio/ISDN chip.

   SPARCserver 10/xx
       Notes:          SPARCstation 10/xx without monitor/framebuffer.

   SPARCstation 3
       Notes:          Although this model appeared in a few Sun price
                       lists, it was renamed the SPARCstation 10 before
                       release.

   SPARCstation 10/xx
       Processor(s):   up to two Mbus modules
       Motherboard:    501-1733/2259/2274/2365 (-2274 in model 20 only)
       Chassis type:   square pizza box
       Bus:            SBus @ 16.6/20MHz (model 20) or 18/20MHz, 4 slots;
                       and Mbus, 2 slots
       Memory:         512M physical
       Architecture:   sun4m
       Notes:          Code name "Campus-2". 1.44M 3.5" floppy. Up to
                       four CPUs, some models with multiple CPUs stock.
                       16M or 64M 70ns SIMMs. Some models (514,
                       others?) use double-width CPU modules which
                       block SBus slots.

                       model  MHz  SPECint92 SPECfp92 SPECint  SPECfp
                       -----  ---  --------- -------- -Rate92--Rate92-
                       10/20  33     39.8      46.6     943     1104
                       10/30  36     45.2      54.0    1072     1282
                       10/40  40     50.2      60.2    1191     1427
                       10/402 40x2                     2112     2378
                       10/41  40     53.2      67.8    1264     1607
                       10/412 40x2                     2411     2854
                       10/51  50     65.2      83.0    1580     2008
                       10/512 50x2                     2950     3744
                       10/514 50x4                     5155     5809
                       10/52  45x2   announced but never shipped
                       10/54  45x4   announced but never shipped
                       10/61
                       10/612
                       10/71
                       10/712

   SPARCcenter 2000
       Processor(s):   Mbus modules
       Motherboard:    501-1866/2334/2362
       Bus:            XDBus * 2, 20 slots; SBus @ 20MHz, 4 slots/motherboard;
                       Mbus, 2 slots/motherboard
       Memory:         5G physical
       Architecture:   sun4d
       Notes:          Dual XDBus backplane with 20 slots. One board
                       type that carries dual Mbus SPARC modules with
                       2M cache (1M for each XDBus), 512M memory and 4
                       SBus modules. Any combination can be used;
                       memory is *not* tied to the CPU modules but to
                       the XDBus. Solaris 2.x releases support an
                       increasing number of CPUs (up to full twenty),
                       due to tuning efforts in the kernel. First
                       supported in Solaris 2.2 (SunOS 5.2). Code name
                       "Dragon". 2.19 GIPS, 269 MFLOPS.

                       model  MHz  SPECint92 SPECfp92 SPECint  SPECfp
                       -----  ---  --------- -------- -Rate92--Rate92-
                       2108   40x8                     8047    10600
                       2216   50x16                   21196    28064

   SPARCclassic M
       Processor(s);   microSPARC @ 50MHz
       Memory:         96M physical
       Notes:          16M standard.

   SPARCstation 10M
       Processor(s):   SuperSPARC @ 36MHz, 86.1 MIPS
       Bus:            SBus, Mbus
       Memory:         512M physical, 32K cache
       Notes:          32M standard. 1.44M 3.5" floppy.

   SPARCserver 1000
       Processor(s):   Mbus modules
       Motherboard:    501-2336 (2338?)
       Bus:            XDBus; SBus @ 20MHz, 3 slots/motheboard;
                       Mbus, 2 slots/motherboard
       Memory:         2G physical, 1M off-chip cache
       Architecture:   sun4d
       Notes:          Single XDBus design with "curious L-shaped
                       motherboards". Three SBus slots, onboard FSBE,
                       512M, two CPU modules per motherboard. Four
                       motherboards total, or a disk tray with four
                       535M 1" high 3.5" disks (1G disks supported
                       recently). Code name "Scorpion". 135 MIPS. First
                       supported in Solaris 2.2 (SunOS 5.2).

                       model  MHz  SPECint92 SPECfp92 SPECint  SPECfp
                       -----  ---  --------- -------- -Rate92--Rate92-
                       1102   50x2                     2730     3681
                       1104   50x4                     5318     7076
                       1108   50x8                    10113    12710

   SPARCcluster 1
       Processor(s):   SuperSPARC @ 45MHz, 86.1 MIPS
       Bus:            SBus
       Memory:         1M off-chip cache
       Notes:          512M standard. A bunch of SPARCstation 10's
                       glued together with an switch (Alantec?
                       Kalpana?).

   SPARCstation 5
       Processor(s):   microSPARC II @ 70MHz, 85MHz, 110MHz;
                       57.0/64.0/? SPECint92, 47.3/54.6/? SPECfp92,
                       1352/1518/? SPECintRate92, 1122/1295/? SPECfpRate92
       Bus:            SBus
       Memory:         256M physical
       Architecture:   sun4m
       Notes:          16M standard in 70MHz model, 32M standard in
                       85MHz model. 8 SIMM slots, 8M or 32M SIMMs,
                       mixable except that any 32M SIMMs must be in
                       slots before any 8M SIMMs. Code name "Aurora".
                       Uses SCA connectors (see Misc Q&A #29) for
                       internal SCSI drives. Socketed CPU chip.

   SPARCserver 5
       Notes:          SPARCstation 5 without monitor/framebuffer.

   SPARCserver 20
       Notes:          SPARCstation 20 without monitor/framebuffer.

   SPARCstation 20M
       Processor(s):   SuperSPARC @ 50MHz, 86.1 MIPS
       Bus:            SBus, MBus
       Memory:         512M physical, 32K off-chip cache
       Notes:          32M standard. 1.44M 3.5" floppy.

   SPARCstation 20/xx
       Processor(s):   Mbus modules
       Bus:            SBus and Mbus; SBus for models 50 and 61 (and
                       possibly others?) @ 25MHz/64bits
       Memory:         512M physical
       Architecture:   sun4m
       Notes:          1.44M 3.5" floppy. 32M standard all models. Code
                       name "Kodiak". Uses SCA connectors (see Misc Q&A
                       #29) for internal SCSI drives. 16, 32, or 64M
                       60ns SIMMs. Some models (514, others?) use
                       double-width CPU modules that block SBus slots.

                       model  MHz  SPECint92 SPECfp92 SPECint  SPECfp
                       -----  ---  --------- -------- -Rate92--Rate92-
                       20/50  50     69.2      78.3    1628     1842
                       20/502 50x2                     2833     2995
                       20/51  50     73.6      84.8    1731     1995
                       20/514 50x4                     6034     6752
                       20/61  60     88.9     102.8    2092     2418
                       20/612 60x2                     3903     4645
                       20/71
                       20/712

   SPARCstation 4
       Processor(s):   MicroSPARC II @ 70MHz
       Bus:            SBus, 1 slot
       Architecture:   sun4m
       Notes:          Optional 16-bit audio, onboard framebuffer.


   Processor Data
   --------------

       SPARC register overview

  From John Cheshire ([email protected]):

   SPARC registers can be divided into two general classifications:
   working registers and control/status registers. Working registers
   are those used for data and addressing operations. They are called
   r-registers in the integer unit (IU), or f-registers in the
   floating-point unit. The various control/status registers record
   status or control the state of a processor or memory management unit
   (MMU).

   The 136 r-registers of the integer unit are divided into eight
   register windows. The 32 f-registers of the floating-point unit are
   a directly addressed register file (referred to as freg0...freg31).

   All registers for SPARC are 32 bits in length, although
   floating-point double-precision instructions allow an adjacent and
   aligned floating-point data register pair to be accessed as a single
   64-bit register. Also note that while all control registers are
   32 bits in length, some of the bit fields may be designated as
   reserved. Reserved bits are non-writable, and are returned as zero
   when when the register is read. It is good programming practice to
   write zeros into a reserved bit field when writing to a control
   register of this type. This practice avoids upgrade problems with
   later hardware versions.

   The 136 r-registers of the [Ross] RT620 are 32 bits wide and are
   divided into a set of 128 window registers and a set of eight global
   registers. The 128 window registers are grouped into eight sets of
   24 r-registers called windows. One of these eight windows is
   selected by setting the Current Window Pointer (CWP), a 5-bit field
   in the processor state register (PSR). Within each window, the
   programmer can directly access 24 windowed r-registers by register
   number. The eight global registers may be accessed regardless of the
   window selected by the CWP.

       Register                Alternate               Register
       Number                  Register Number         Group Name
       --------                ---------------         ----------
       r[24] to r[31]          i[0] to i[7]            ins
       r[16] to r[23]          l[0] to l[7]            locals
       r[8] to r[15]           o[0] to o[7]            outs
       r[0] to r[7]            g[0] to g[7]            globals

   The windowed register file is implemented as a circular stack, with
   the highest numbered window joined to the lowest. For the eight
   windows implemented in SPARC, window 7 adjoins window 0.

   Note that each window shares its ins and outs with adjacent windows.
   Outs from a previous window (CWP+1) are the ins of the current
   window, and the outs of the current window are the ins of the next
   window (CWP-1). While only adjacent windows share ins and outs,
   globals are shared by all windows. A window's locals, on the other
   hand, are not shared at all, belonging only to that window.

   An alternative approach to understanding SPARC window registers is
   to note that the Current Window Pointer (CWP) acts as an index
   pointer within the stack of 128 window registers. Changing the
   Current Window Pointer by one offsets the r-register addressing by
   16. Since 24 r-registers can be addressed with each CWP value,
   incrementing or decrementing the CWP results in an eight register
   overlap in register addressing. This overlap of window register
   addressing creates the in-out feature of the windowed registers.

   After power-on reset, the state of the Current Window Pointer and
   the window invalid mask (WIM) register are undefined. The power-on
   reset trap routine must initialize the CWP and WIM register for
   correct operation.

   In addition to the 136 r-registers, SPARC defines a set of 32-bit
   floating point data registers, referred to as f-registers. The
   [Ross] RT620 fp register files each provide a set of 32 f-registers.
   These registers can be accessed as 32 registers containing single
   precision (32-bit) data types or as 16 pairs of registers containing
   double precision (64-bit) data types. Double precision pairs are
   always addressed as adjacent even-odd registers.

       SuperSPARC

  Texas Instruments TMX390Z50. On-chip 20K 5-way set-associative
I-cache, physically indexed and tagged. On-chip 16K 4-way
set-associative D-cache, write-back, physically indexed and tagged.
65536 hardware contexts. FPU and SPARC Reference MMU on chip. SPARC
Reference MMU has in-memory 3-level page tables, similar to a
"de-baroqued subset" of the 68030 MMU, but with Sun-MMU-style contexts.
Code name "Viking".

  "When the SuperSPARC Multi-Cache Controller is used in the Mbus
configuration, it supports either no E-cache or 1MB of E-cache. When the
MCC is used in the X[D]Bus configuration, it supports a variety of
E-cache sizes: none, 512Kb, 1Mb, or 2Mb." -- Texas Instruments
SuperSPARC User's Guide, Alpha release.

       microSPARC

  Texas Instruments TMX390S10. On-chip 4K I-cache. On-chip 2K D-cache.
64 hardware contexts. FPU and SPARC Reference MMU on chip. SPARC
Reference MMU has in-memory 3-level page tables, similar to a
"de-baroqued subset" of the 68030 MMU, but with Sun-MMU-style contexts.
Code name "Tsunami".

       microSPARC II

  Fujitsu MB86904. On-chip 16K I-cache. On-chip 8K D-cache.FPU and
SPARC Reference MMU on chip.

       SF9010/MB86900

  These two are the same chip; Fujitsu simply renamed it. The FPC
portion was later given the separate designation MB86910 (?).

       ROSS RT601/Cypress CY7C601

  These two are the same chip, renamed when Cypress sold ROSS
Technology to Fujitsu. No on-chip cache.

       ROSS RT602/Cypress CY7C602

  These two are the same chip, renamed when Cypress sold ROSS
Technology to Fujitsu.

       ROSS RT605/Cypress CY7C605

  These two are the same chip, renamed when Cypress sold ROSS
Technology to Fujitsu. 64K unified cache which can run in either
write-through or write-back mode; SunOS/Solaris uses write-back. SPARC
Reference MMU with 4096 contexts.

       hyperSPARC

  ROSS RT620 IU/FPU and ROSS RT625 MMU/cache controller. On-chip 8K
direct-mapped I-cache, 128K or 256K external (?) unified cache which can
run in write-through or write-back mode; SunOS/Solaris uses write-back.
SPARC Reference MMU with 4096 contexts. Code name "Pinnacle".

             END OF PART I OF THE SUN HARDWARE REFERENCE

==============================================================================


PART II
                               =======
                                 FAQ

FAQ
===

   ROM Monitors
   ------------

  Sun-2's sported a rather primitive monitor; with each succeeding
model line, it has become more powerful. In all models, the machine
enters the ROM monitor upon power up. The monitor tries to boot from a
default device, which may be determined by a simple priority-ordered
search for boot devices (Sun-2) and/or by EEPROM settings (Sun-3 and
later). If it cannot find a boot device or the boot device is offline,
it enters command-line mode. Command-line mode may be manually invoked
at any time, including while the OS is running, by holding down L1 and
then pressing A on a Sun console, or sending BREAK if you are using a
terminal as the console. On all models, the "c" (continue) command
resumes execution at the point where the monitor was entered, so you can
recover from accidentally halting the OS. Note that if you are using a
terminal as the console, turning it off or disconnecting it is usually
interpreted as BREAK and halts the machine.

  Note that the ROM monitor in a machine may or may not know about any
particular color framebuffer, depending on the revision of the ROM and
the age of the framebuffer standard. If the ROM does not know how to
detect and display on the particular color framebuffer you have
installed, it will be unable to display the normal ROM boot messages.
This does not affect OS support for the framebuffer; if you are willing
to boot blind, SunOS should find the framebuffer and start displaying on
it normally. The alternative is to get a more recent ROM or a different
framebuffer.

SUN-1

  No information. The 100U used a Sun-2 CPU (the same one used in early
2/120 units), so it had a Sun-2 ROM monitor.

SUN-2

  The ROM monitor in at least the 2/120 and 2/170 (and probably all
other Sun-2 models) is capable of booting and performing some memory and
register operations, but not much more. There is no online help or
diagnostics.

  The boot command is of the form "b dd(x,y,z) args" where "dd" is a
device string, "x" is the controller number, "y" is the unit number (?),
"z" is the partition number, and "args" are optional arguments to the
kernel. "dd" may be sd (SCSI disk), st (SCSI tape), xy (Xylogics SMD
controller), ie (Sun Ethernet board), or ec (3Com Ethernet board), and
probably others (mt?). For example, to boot from the first partition on
the first SCSI disk on the first SCSI controller (a common
configuration), the command would be "b sd(0,0,0)". To boot from the
first partition on the second SMD disk on the first SMD controller (a
configuration I have), the command would be "b xy(0,1,0)". To boot from
the fourth file on the first SCSI tape drive on the first SCSI
controller (booting from the n'th file may be required during OS
installation), the command would be "b st(0,0,3)".

  Note that the ROM monitor makes certain assumptions about SCSI IDs --
the tape drive is actually at SCSI ID 4, but is referred to as tape unit
0. By default ("b"), the ROM monitor tries to boot from (0,0,0) on the
highest-priority bootable device that it can find in the machine's
slots; the priority order is xy, sd, and ie/ec (don't know which has
priority over the other). It never boots from tape by default. There may
be other bootable devices, but I have never seen them.

  Also note that for at least some versions of SunOS, "args" is not
actually passed to the kernel. The "b" command reads a tiny bootstrap
from the indicated device. The bootstrap then automatically continues
the boot from the same device, ignoring "args". The only way I have
found to actually pass arguments such as the single-user flag (-s) to
the kernel is to use the bootstrap program on the OS tapes, which gives
a prompt rather than continuing automatically. At that prompt, entering
the device information followed by the arguments (e.g. "xy(0,1,0) -s")
will actually get the arguments passed to the kernel.

SUN-3

  The Sun-3 ROM monitor is much more sophisticated. Entering "?" will
produce a list of commands with brief explanations and syntax. The ROM
contains diagnostics sufficient for a preliminary checkout of a machine
for which you do not have a boot device. Syntax of the boot command is
largely the same as for Sun-2's, with a few differences: the hardware
search for a boot device may be overridden by EEPROM settings which
direct the machine to always boot from a particular device; on machines
with a Lance Ethernet chip rather than Intel, the Ethernet device is le
rather than ie; and "args" is passed to the kernel correctly (actually,
this appears to be a difference between SunOS 3.x and SunOS 4.x rather
than a ROM difference).

  Sun-3 boot ROM versions 3.x are actually a step backward in some
ways. They can boot from more devices (QIC-150 tapes, possibly CD-ROMs)
but the online help and most of the diagnostic tests were removed,
probably because the ROM space was needed for new boot code.

SUN-386i

  No information.

SUN-4

  The Sun-4 ROM monitor is vastly more sophisticated than even the
Sun-3 version. It has two different command-line modes. The old mode, in
the style of earlier monitors, can do exactly three things: boot (using
the old-style syntax), continue execution, or switch to new command-line
mode.

  New mode uses "ok" for a prompt. Help may be obtained by typing
"help". It has a built-in command-line editor, and (at least in newer
versions) a Forth interpreter (I haven't seen any sign of one on my SLC
but I wouldn't know how to look, either). You can boot either using
the old-style syntax or by specifying a type of device ("boot disk",
"boot tape", etc.). EEPROM configuration is through "printenv" and
"setenv", which use names rather than addresses. Good help is available
for most commands, and there are a lot of commands, encompassing all the
functionality available in earlier monitors and adding helpful new
features, such as "probe-scsi", which searches the SCSI bus and prints
out the ID, LUN, device type, and identification string for anything it
finds.

   EEPROM/NVRAM Parameters
   -----------------------

  Every Sun-3, Sun386i, and Sun-4/SPARCstation has EEPROM or NVRAM on
the CPU board which retains settings for various things the ROM monitor
needs to know to boot and function properly. Most of these locations are
standard across all three model lines; where this is not true, it is
noted in the list below. All numeric values are in hexadecimal unless
otherwise noted.

       0x14    Installed memory
         Megabytes of memory installed

       0x15    Tested memory
         Megabytes of memory tested during power-on self test (POST)

       0x16    Monitor screen size
         0x00   1152 x 900 (standard resolution)
         0x12   1024 x 1024 (1Kx1K)
         0x13   1600 x 1280 (high resolution, see locations 0x50 and 0x51)
         0x14   1440 x 1440
         0x15   1024 x 768 (low resolution)

       0x17    Watchdog reset action
         0x00   invoke ROM monitor
         0x12   imitate power-on reset (default)

       0x18    Operating system boot device
         0x00   poll (default)
         0x12   boot from EEPROM/NVRAM specified boot device

       0x19-0x1A  SunOS boot device name (in ASCII)
         0x78 0x79 (xy)  Xylogics 450/451 SMD controller
         0x78 0x64 (xd)  Xylogics 7053 SMD controller
         0x73 0x64 (sd)  SCSI disk
         0x69 0x65 (ie)  Ethernet (Intel-based controller)
         0x69 0x64 (id)  IPI disk
         0x67 0x6E (gn)  ???
         0x6C 0x65 (le)  Ethernet (Lance-based controller)

       0x1B-0x1D  SunOS boot device controller, unit, partition numbers
         0x00 0x00 0x00 (0,0,0) (default)

       0x1F    Primary terminal
         0x00   monochrome framebuffer
         0x10   serial port A
         0x11   serial port B
         0x12   VMEbus and 3/60-P4 color frame buffers (configure
                 locations 0x60C-0x613 when VX and MVX graphics options
                 are installed)
         0x20   non-3/60-P4-color frame buffer

       0x20    Power-up banner
         0x00   Sun logo display
         0x12   custom banner stored in 0x68-0xB7

       0x21    Keyboard click
         0x00   OFF
         0x12   ON (default)

       0x22-0x23  Diagnostic boot device name (in ASCII)
         Used when NORM/DIAG switch in DIAG position. As 0x19-0x1A, or
         0x00 0x00 to invoke ROM monitor.

       0x24-0x26  Diagnotic boot device controller, unit, partition numbers
         Used when NORM/DIAG switch in DIAG position. As 0x1B-0x1D.

       0x28-0x4F  Diagnostic boot path
         Used when NORM/DIAG switch in DIAG position. ASCII codes for
          path and filename(?) to boot, or all zeroes to invoke ROM
          monitor.

       0x50    High resolution number of columns

       0x51    High resolution number of rows

       0x58    Serial port A default baud rate
         0x00   9600 baud
         0x12   use rate stored at 0x59-0x5A

       0x59-0x5A  Serial port A baud rate
         The baud rate as a 16-bit number, MSB first (e.g. 0x04 0xB0
          for 1200, 0x12 0xC0 for 4800, 0x25 0x80 for 9600).

       0x5B    Serial port A DTR/RTS
         0x00   assert DTR and RTS signals
         0x12   do not assert DTR and RTS signals

       0x60    Serial port B default baud rate
         0x00   9600 baud
         0x12   use rate stored at 0x61-0x62
          Note that when the NORM/DIAG switch is in the DIAG position,
          port B runs at 1200 baud and the settings of locations
          0x60-0x62 are ignored.

       0x61-0x62  Serial port B baud rate
         The baud rate as a 16-bit number, MSB first (e.g. 0x04 0xB0
          for 1200, 0x12 0xC0 for 4800, 0x25 0x80 for 9600).

       0x63    Serial port B DTR/RTS
         0x00   assert DTR and RTS signals
         0x12   do not assert DTR and RTS signals

       0x68-0xB7  Custom banner
         ASCII codes for desired banner, padded with spaces and ending
          with 0x0D, 0x0A in locations 0xB6 and 0xB7

       0x111   Sun386i CPU revision level
         0x01   P1.5 CPU (should not be in the field)
         0x02   501-1241/1324-xx
         0x03   501-1413/1414-xx

       0x112   Sun386i CPU revision level
         0x00   P1.5 CPU (should not be in the field)  ([0x111] = 0x01)
         0x00   <= 501-1241-02 Rev 15                  ([0x111] = 0x02)
                <= 501-1324-02 Rev 15
         0x02   >= 501-1241-02 Rev 16                  ([0x111] = 0x02)
                >= 501-1324-02 Rev 16
         0x00   501-1413/1414-xx                       ([0x111] = 0x03)

       0x154   Sun386i SCSI spin-up delay (boot ROM >= 4.5 only)
         0x00   no delay (default)
         0xnn   delay nn seconds

       0x162   Sun386i password mode select (boot ROM >= 4.5 only)
         0x01   command secure mode
         0x5E   fully secure mode
         other  non-secure mode

       0x163-0x16A  Sun386i password
         Eight bytes of password in ASCII.

       0x18F   Logo type
         0x00   normal Sun logo
         0x06   3D logo for cgsix framebuffers
         0x12   custom logo

       0x492   Sun386i power-on mode
         0x02   bypass mode
         0x06   diagnostic boot
         0x07   normal boot

               Sun-3 and Sun-4 password mode select (boot ROM >= 2.7.1 only)
         0x01   command secure mode
         0x5E   fully secure mode
         other  non-secure mode

       0x493-0x49A  Sun-3 and Sun-4 password (boot ROM >= 2.7.1 only)
         Eight bytes of password in ASCII. If the ROM is 2.8, enter a
         '@' character before each letter of the password. Enter one
         letter per location, followed by . If the password is
         less than eight letters, enter 0x00 in the remaining
         locations. The hexadecimal values of the letters can also be
         used to enter the password.

       0x494   Sun386i autoconfig message flag
         0x00   no messages
         0x01   Sun-3 (UNIX expert type messages)
         0x02   verbose messages

       0x60C-0x60F  VX and MVX options boot code
         0x31 0x40 0x00 0x00   use the VX/MVX as the system console

       0x610-0x61e  VX and MVX options bus type
         0xFC 0x00 0x00 0x00   use the VX/MVX as the system console

       0x70B   3/80 power-on mode (boot ROM >= 2.3 only)
         0x06   normal boot
         0x12   diagnostic mode
         other full diagnostic boot


   HOSTID and IDPROM/NVRAM
   -----------------------

  For more information, check out the files listed in Q&A #3-4, but
here is a fast list of HOSTIDs and chip locations.

   The IDPROM or NVRAM contains a variety of important information,
including a machine-type code and the machine serial number. Note that
because of the machine-type code, IDPROMs and NVRAMs can only be swapped
between machines with the same CPU board type. (For example, swapping
between a 3/75 and a 3/180 should work because they both use the
"Carrera" 3004 CPU, but it wouldn't work in a 3/60, which uses a
different CPU.)

  On Sun-3's, 386i's, and early Sun-4's, the IDPROM has a printed label
which indicates the machine type and the serial number as well.

   system      hostid    label  type            P/N      location
   ------      ------    -----  ----            ---      --------
   3/60        1700xxxx  0 xxxx IDPROM          520-1559 U224
   3/50        1200xxxx  4 xxxx IDPROM          520-1295 U0204
   3/80        4200xxxx  -      NVRAM 2Kx8 CMOS 525-1031 U0205
   3/110       1400xxxx  6 xxxx IDPROM          520-1412 U1409
   3004 (3/75/ 1100xxxx  3 xxxx IDPROM          520-1221 U1409
    140/150/
    160/180)
   3/2xx       1300xxxx  5 xxxx IDPROM          520-1322 U1907
   3/4xx       4100xxxx  D xxxx IDPROM          525-1083 U1701
   3/E         1800xxxx  9 xxxx IDPROM          520-8049 U224

   386i        31xxxxxx  xxxx   IDPROM          520-1811 U601
               -         -      NVRAM 2Kx8 CMOS 100-1628 U603

   4/10        80xxxxxx  -      NVRAM 8Kx8 CMOS 525-1343 U0707
   4/15        80xxxxxx  -      NVRAM 8Kx8 CMOS 525-1203 U0707
   4/20        54xxxxxx  -      NVRAM 2Kx8 CMOS 520-2749 U1011
   4/25        56xxxxxx  -      NVRAM 2Kx8 CMOS 525-1188 U0813
   4/30        80xxxxxx  -      NVRAM 8Kx8 CMOS 525-1203 U0707
   4/40        52xxxxxx  -      NVRAM 2Kx8 CMOS 525-1084 U0901
   4/50        57xxxxxx  -      NVRAM 2Kx8 CMOS 525-1180 U0512
   4/60        51xxxxxx  -      NVRAM 2Kx8 CMOS 525-1032 U089
   4/65        53xxxxxx  -      NVRAM 2Kx8 CMOS 525-1109 U098
   4/75        55xxxxxx  -      NVRAM 2Kx8 CMOS 525-1112 U0512
   4/1xx       2200xxxx  B xxxx IDPROM          520-1638 U805
   4/2xx       2100xxxx  A xxxx IDPROM          520-1532 U1901
   4/3xx       23xxxxxx  C xxxx IDPROM          523-2136 U2202
                                NVRAM 2Kx8 CMOS 100-1628 U2200
   4/4xx       24xxxxxx  -      IDPROM          525-1100 U1404
                                NVRAM 2Kx8 CMOS 100-1628 U3505
   4/6xx       71xxxxxx  -      NVRAM 8Kx8 CMOS 525-1181 U2701
   4/E         61xxxxxx  -      NVRAM 2Kx8 CMOS 523-8151 U1101
   SS10        72xxxxxx  -      NVRAM 8Kx8 CMOS 525-1184 U1004
   SServ1000   80xxxxxx  -      EEPROM 2Kx8     100-2922 U0209
               80xxxxxx  -      NVRAM 8Kx8 CMOS 100-3528 U1007
   SCtr2000    80xxxxxx  -      EEPROM 2Kx8     100-2922 U0203
               80xxxxxx  -      NVRAM 8Kx8 CMOS 100-2822 U1205

  Note that many of the later models (4/10/15/30, SPARCserver 1000,
SPARCcenter 2000) use the same machine-type code.

  Note that the EEPROM for the SPARCserver 1000 and SPARCcenter 2000 is
soldered to the "Control Board".


   Using a Terminal as Console
   ---------------------------

  Every Sun model has the ability to use a serial terminal as a
console, instead of a Sun framebuffer and keyboard. In general, machines
which have a removeable framebuffer (on a separate board rather than
built into the CPU board/motherboard) require that the framebuffer be
removed; the ROM monitor notes the absence of a framebuffer and sends
output to the first serial port on the CPU board (usually labelled
serial port A and known to the operation system as /dev/ttya), and the
OS does the same when booted. Machines which do not have a removeable
framebuffer may switch to terminal mode when the keyboard is not
connected, or may require that the console designator in the EEPROM be
changed. For the latter, those which have NORM/DIAG switches can be
temporarily forced to use a terminal by powering up with the switch in
the DIAG position. From there, you can break out of the diagnostics and
use the ROM monitor command line to change the console designator in the
EEPROM.

  The Sun 2/120 and 2/170 have an unusual configuration: the keyboard
and mouse connect to the framebuffer board rather than the CPU. If the
framebuffer board is removed, all input and output goes to ttya, as
might be expected. If a framebuffer is present but no keyboard is
connected, output goes to the framebuffer, but input comes from ttya.

  Terminals should be set for 9600 bps, 8 data bits, one stop bit, and
no parity. The Sun 3/260 and 3/280 support the usual connection on ttya,
but can also support a console terminal at 1200 bps on the second serial
port on the CPU board, ttyb.

  The equivalent of L1-A (halt machine, drop to ROM monitor) from a
terminal console is BREAK. Unfortunately, turning off the terminal or
disconnecting it is usually interpreted as a BREAK and halts the
machine. Thus, it is not easily possible to turn off the terminal when
the console is not in use, or to use one terminal with many machines via
a switchbox. Suggested solutions include a special cable (on a 4/2xx
CPU, a 4.7K resistor between pins 3 and 25 may work) or modifying the
SunOS serial driver (zs) to ignore breaks.


   Memory Display On Startup
   -------------------------

  One of the points which causes much confusion is the startup display
of how much memory is installed versus how much is being tested.

  As with most subjects, little is known about what the Sun-1's
displayed, except the 100U which used a Sun-2 CPU.

  The Sun 2/120, 2/170, and probably all other Sun-2 models simply
display the amount of memory installed. If the ROM monitor sees the
memory, SunOS should see it as well, and if the ROM monitor does not see
it, SunOS is most unlikely to see it either. All memory is tested, but
there are no displays to that effect unless an error is found. (Note
that installing memory boards set to overlapping address ranges causes
errors.)

  With the Sun-3's, the ability to set how much memory would be tested
on startup was added; it is stored in the EEPROM along with a variety of
other settings. The total amount of memory installed is displayed, on
one of the first lines printed (in the same area as ROM revision, serial
number, etc.), but the line stating how much memory is being tested is
much more conspicuous. The amount of memory tested is not automatically
increased when more memory is installed, which frequently leads to dismay
by the installer when the machine apparently does not recognize the
memory just installed. Sun-4's behave the same way.

  SunOS does not care how much memory was tested. It will use however
much is installed. As with the Sun-2's, if the ROM monitor sees the
memory, SunOS should see it as well, and if the ROM monitor does not see
it, SunOS is most unlikely to see it either.


   Miscellaneous Questions and Answers
   -----------------------------------

1)  I can't get anything out of the onboard SX video port on my
   SPARCstation 20.
2)  Why doesn't my old SBus card fit the slot in my newer machine, or
   vice versa?
3)  My IDPROM/NVRAM just died. What can I do?
4)  Where can I get information about the IDPROM/NVRAM?
5)  Why doesn't my new monochrome monitor work with older monochrome
   framebuffers (especially the GX), or vice versa?
5a) My machine won't boot with the monochrome monitor connected. What?
6)  There is a battery on my VME SCSI host adapter board. What's it for?
7)  Can I run my old, slow SCSI drives on a new machine with fast SCSI?
8)  Can I use a type-4 keyboard on a Sun-3 that normally takes a type-3
   keyboard?
9)  I have a VME-based CPU but not the matching chassis. Can I put it in
   some other Sun VME chassis?
10) What's the situation with the 4/6xx and Solaris 1.x/2.x?
10a)Compatiblity chart for SPARCstation 10 Mbus modules and Solaris.
11) Can I use a non-Sun CD-ROM drive? Will I be able to boot from it?
12) Can I use a Sun CD-ROM drive on some other computer?
13) What's the maximum DVMA burst size for various SBus machines?
14) I occasionally get strange SCSI errors and other disk flakiness with
   the internal drives on my 3/80.
15) Can I put 4M SIMMs in my 3/80?
16) Can I put two 36MHz Mbus modules in my SPARCstation 10/30?
16a)What are the limitations on mixing Mbus modules in a single machine?
17) My Sun doesn't like 3-chip SIMMs.
18) My SPARCstation 1+ says "The SCSI bus is hung. Perhaps an external
   device is turned off." when I try to boot, or it locks up completely
   after displaying the banner. What do I do?
19) My SPARCstation IPC chokes with "panic: mmp_getpmg" when booting.
   What do I do?
20) I have some old SMD drives and controllers and/or a 9-track tape
   drive. Can I still use them with newer machines and OS versions?
21) My Sun-3 won't boot from a SCSI disk, but when I hook the disk up
   to another machine or boot from another disk, it works fine. What?
21a)My Sun-4 won't boot from a SCSI disk, but...
22) I'm getting "timeout" and "disk not responding to selection" errors
   with a brand-new SCSI disk.
23) I have a SunOS CD-ROM with sun3 and/or sun3x versions of the OS on
   it. Can I boot my Sun-3 from this CD-ROM?
24) I have a SunPC Accelerator card with an Intel 486DX on it. Can I use
   one of the DX2/DX4 replacement chips?
25) Can I set the stock serial ports to rates higher than 38400?
26) Can I get an ergonomic keyboard for my Sun? A trackball?
27) What's this 80-pin SCSI connector?
28) My SPARCstation 10 says "Data Access Error" and chokes when
   cold-booting, but typing "boot" at the ROM monitor prompt works.
   What?
29) Why can't I get my Fast Ethernet SBus card from Sun to work?
30) I have a disk for which there is no entry in format.dat. Does
   anybody have an entry I can use?
31) I just added some SIMMs, and now I'm getting odd DMA errors and/or
   Ethernet problems. What?
32) Should internal SCSI drives be terminated?


1)  I can't get anything out of the onboard SX video port on my
   SPARCstation 20.

       To use the onboard SX video, you need a VSIMM. This is an
       extra-long SIMM that sits in one of the two dual-ported memory
       slots. If you do not have a VSIMM, the onboard SX video will not
       work. If you did not buy the machine in an SX configuration, it
       did not come with a VSIMM. You can order one separately to
       enable the onboard SX video.

2)  Why doesn't my old SBus card fit the slot in my newer machine, or
   vice versa?

       From Chuck Narad:

       In SBus rev A, the cards were designed to snap into place in the
       SS1 enclosure. Later, before the spec went big time (before the
       IEEE standard), we decided to make SBus fit into other
       environments such as VME card spacing (as was done on the
       600MP). For reasons of card pitch and RFI compliance the
       backplate needed to be shorter, since the originators of the
       spec hadn't thought about how to do this; for SS1/SS2
       compatibility the snap-in 'ears' needed to be maintained. We
       ended up with a 2-piece backplate where the 'ears' were a
       removable part, and the screw-holes could be used to mount the
       card in systems that did not use the ears.

       This decision took over a year and cost thousands of lives :-)

       This two-piece backplate was finalized quite a while ago, and
       made it into SBus rev B.0. Unfortunately many third-party
       vendors continued to make older, rev-A backplates for a couple
       years after the change was announced and broadcast in such
       places as the SBus spec, the SBus bulletin, newsgroups, etc.
       Also unfortunately, there was a significant number of old-style
       cards shipped by Sun by that time; the hope was that few
       customers actually moved cards from one system to another, and
       the volumes of new cards swamped the volumes of old cards
       quickly. The theory was that all bus standards go through a
       'shake-down cruise' in their first incarnations, and repairs to
       early decisions sometimes leave incompatibilities with older
       parts (examples include VME, SCSI, Multibus... you get the
       picture). SBus ended up being used in a much wider range of
       machines than it was originally intended for.

       Later, the mechanical team on the SS10 decided to take advantage
       of the removable ears for various reasons, so in that enclosure
       also the older cards won't fit.

       Now the good news; as long as you don't care about minor RFI
       leakeage, you can just cut off the ears on the old card with a
       pair of diagonal cutters, and the card will fit into the slot
       fine, you just can't use screws to secure it.

3)  My IDPROM/NVRAM just died. What can I do?
4)  Where can I get information about the IDPROM/NVRAM?

       There is some information in the HOSTID and IDPROM/NVRAM section
       above. For more, get eeprom-nvram.faq and nvram.faq from
       ftp.netcom.com, in directory /pub/he/henderso.

5)  Why doesn't my new monochrome monitor work with older monochrome
   framebuffers (especially the GX), or vice versa?
5a) My machine won't boot with the monochrome monitor connected. What?

       Older monochrome framebuffers and monitors used a 66Hz vertical
       refresh rate. Newer units use a 76Hz vertical refresh rate. The
       GX framebuffers straddle the two: the dual-slot version does not
       support 76Hz vertical refresh, but the single-slot version does
       (except possibly for very early versions). The most common
       problem is that the machine won't boot with the monitor
       connected, but boots and displays properly if the monitor is
       connected about sixty seconds after power-up.

       An additional gotcha is that older monochrome monitors (up
       through about the SPARCstation 1) used a digital signal with ECL
       levels and a DB9 connector. Since then, monochrome
       configurations have usually been grayscale monitors connected to
       a monochrome framebuffer with analog outputs and a 13W3
       connector.

6)  There is a battery on my VME SCSI host adapter board. What's it for?

       It powers a time-of-day clock chip which is not used by Sun-3's.
       Supposedly some of the VME-based Sun-2's did not have a realtime
       clock.

7)  Can I run my old, slow SCSI drives on a new machine with fast SCSI?

       Yes. You may get a lot of SCSI errors. While the SCSI controller
       is compatible with the older drives, the cables and termination
       are frequently a problem. Cables should be short and of high
       quality, and the termination active. Olders Sun external
       enclosures don't have suitable cabling and termination.

8)  Can I use a type-4 or type-5 keyboard on a Sun-3 that normally takes
   a type-3 keyboard?

       Yes. The cable/adapter is sold by Sun (P/N 530-1478 or
       530-1479), Sun refurbisher Apex, and possibly others; Sun-3's
       manufactured toward the end came new with type-4 keyboards and
       the appropriate adapter.

9)  I have a VME-based CPU but not the matching chassis. Can I put it in
   some other Sun VME chassis?

       In general, yes. CPU boards which have onboard memory can be put
       in just about any chassis, including the 3/50 and 3/60 chassis,
       which don't have a full set of VME connectors -- they only have
       the power connector! CPU boards which require external memory
       boards (such as the 3/2xx) obviously require a chassis with at
       least two slots and a full set of VME connectors.

       With some chassis, there may be problems with lacking voltages.
       One individual reports that a 4/3xx CPU works in a 3/60 chassis,
       except the lack of -12VDC means "we can't use a console on it."

       It is also possible to make multiple CPUs share a VME chassis.
       This is trickier. It requires isolating sections of the bus, and
       being sure not to stomp on specialized slots used for memory or
       SCSI boards.

       Since 3/50 and 3/60 motherboards only use the VME bus for power
       they can share a VME chassis with anything, in any slot.

10) What's the situation with the 4/6xx and Solaris 1.x/2.x?

       From Greg Elkinbard:

        SuperSPARC Rev 3.1, 3.2, 3.3 require patches:
                Solaris 1.1 - 101508, 101509
                Solaris 1.1.1_U1 - 101726, 101408
                Solaris 2.3 - 101318, 101406

        If you have Rev 3.5 or Rev 5.x then you should disable 101509,
        101408, 101406

        Rev 3.5 is compatible with Solaris 1.1, 1.1.1B, 2.3 do not use
        it with 1.1.1A (4.1.3_U1)

        Rev 5.x is compatible with Solaris 1.1, 1.1.1A, 1.1.1B, 2.3

        Galaxy (4/6xx) compatible processors and rev:
                SM41 - 501-2258, 501-2270, 501-2359 - Rev 2.x
                SM51 - 501-2352, 501-2360, 501-2361, 501-2387 - rev 3.x
                SM51 - 501-2607, 501-2562-01, 501-2562-02, - rev 3.5
                SM51 - 501-2617, 501-2707 - rev 5.x
                SM520 - 501-2444 - rev 3.x
                SM521 - 501-2445 - rev 3.x

        Field service manual states that minimum OS for SM520 and SM521
        is 2.3, this leads me to believe that 1.x will not support
        Viking MP reliably (i.e use it at your own risk)

       From the FE manual:

        module          minimum Solaris(SunOS) version
        ------          ------------------------------
         SM100 *1 or 2            1.0.1 (4.1.2)
         SM41  *1                 1.1 (4.1.3)
         SM41  *2                 2.1 (5.1)
         SM51  *1                 1.1 (4.1.3)
         SM51  *2                 2.1 (5.1)
         SM52x *1 or 2            2.3 (5.3)

        Boot PROM 2.8v2 or greater is required for SM41.
        Boot PROM 2.10 or greater is required for SM51.

10a)Compatiblity chart for SPARCstation 10 Mbus modules and Solaris.

       module          minimum Solaris(SunOS) version
       ------          ------------------------------
        SM20  *1                 1.1 (4.1.3)
        SM30  *1                 1.1 (4.1.3)
        SM40  *1                 1.1 (4.1.3)
        SM40  *2                 2.2 (5.2)
        SM41  *1                 1.1 (4.1.3)
        SM41  *2                 2.1 (5.1)
        SM51  *1                 1.1 (4.1.3)
        SM51  *2                 2.1 (5.1)
        SM52x *1 or 2            2.3 (5.3)

11) Can I use a non-Sun CD-ROM drive? Will I be able to boot from it?
12) Can I use a Sun CD-ROM drive on some other computer?

       The "CD-ROMs on Sun Hardware FAQ" was maintained by Kyle Downey.
       You should still be able to get it from
       ftp://student_96kfd.williams.edu/pub/faq/sun-info/sun-cd-faq. In
       general, the answer is "maybe, and possibly only after modifying
       the drive or the kernel."

13) What's the maximum DVMA burst size for various SBus machines?

       This is a very complicated question. The SBus controller is
       probably capable of handling any burst size; the limiting factor is
       usually the slave interface to main memory. The SPARCstation 2
       and microSPARC-based machines were supposedly limited to 16-byte
       bursts (one individual reports that, using an SBus card with
       programmable burst sizes, he was able to successfully use
       64-byte bursts to main memory). MicroSPARC II-based machines and
       Mbus machines supposedly could do 32-byte bursts, and the
       SPARCserver 1000 and SPARCcenter 2000 supposedly can do full
       64-byte bursts. The SPARCstation 20 models with 64-bit SBuses
       can do 128-byte bursts, although there are not many 64-bit SBus
       cards to take advantage of it yet.

14) I occasionally get strange SCSI errors and other disk flakiness with
   the internal drives on my 3/80.

       The SCSI bus is routed internally to three locations (two disk
       connectors and the external connector), which sometimes causes
       problems. According to one report, a Sun "in-line" SCSI
       terminator on one of the internal disk connectors will solve the
       problem.

15) Can I put 4M SIMMs in my 3/80?

       If you have version 3.0.2 or better of the boot ROMs, yes. The
       version is displayed in the startup messages immediately after
       powering the machine on. You can install up to 40M of memory by
       putting 4M 80ns SIMMs in banks 0 and 1 or 2 (sorry, not clear
       which it should be), and filling the remaining two banks with 1M
       80ns SIMMs.

       Note that ROM version 3.0.2 has known problems with booting from
       QIC-150 tape drives.

16) Can I put two 36MHz Mbus modules in my SPARCstation 10/30?
16a)What are the limitations on mixing Mbus modules in a single machine?

       From John DiMarco:

        There is no intrinsic technical reason why a 36MHz Mbus can't
        support two modules. While it is true that you cannot normally
        configure a system to support two M30 modules, the reason for
        this is that early revisions of the SuperSPARC processor
        contained bugs that prevented MP configurations from working
        properly without the 1M external cache. Most if not all M20
        (33MHz) and M30 (36MHz) modules, and many M40 (40MHz) modules
        had this problem.

       In general, if you want to mix and match modules (which is
       unsupported but probably works for a number of configurations),
       you'll need to make sure that the interface speeds of all
       modules are matched.

       The modules without SuperCACHE run at the Mbus speed (or the
       Mbus runs at their speed?), so modules without SuperCACHE cannot
       be mixed. Nor can they be mixed with modules with SuperCACHE.

       Modules with SuperCACHE can be mixed, but this may not be
       advisable. The 41 and 51 modules both require a 40MHz Mbus (SS10
       or SS20 switched to slow board speed), but the 61 can use a
       50MHz Mbus as well. Mixing a 61 with slower modules may slow
       down the 61 as well.

       Another consideration is that slower modules are usually older
       SuperSPARC steppings that may require more drastic workarounds
       and hence slow down newer, faster processors -- assuming it
       works at all.

17) My Sun doesn't like 3-chip SIMMs.

       From John O'Connor:

       3-chip SIMMs have two 4Mbit chips (organised as 1M * 4bits) plus
       one 1Mbit chip as opposed to the nine 1Mbit chips on the 9-chip
       SIMMS. The difference arises from the fact that the 4Mbit chips
       require more addresses to be read in the refresh cycles, so you
       get unreliable operation of 3-chip SIMMs in systems that don't
       provide enough refresh cycles.

18) My SPARCstation 1/1+ says "The SCSI bus is hung. Perhaps an external
   device is turned off." when I try to boot, or it locks up completely
   after displaying the banner. What do I do?

       Check the SCSI termination fuse, located on the motherboard near
       the external SCSI connector. The fuse looks like a small
       cylinder that is usually clear or totally black with a black top
       and white writing. It is in a socket and is easy to remove. If
       adding an external device that powers its own terminator makes
       the machine work, the problem is definitely the termination
       fuse.

       It may also be necessary to change the settings on the disk
       drive, to spin up on command only and not by default. Also, the
       FE manual notes that for SPARCstation 1's with motherboards
       501-1382-10 or lower, or 501-1629-10 or lower, one should power
       on the system before turning on external disk drives.

19) My SPARCstation IPC chokes with "panic: mmp_getpmg" when booting.
   What do I do?

       This may have to do with mixed 1M and 4M SIMMs. Make sure the 4M
       SIMMs are in the first memory bank. This problem was supposed to
       be solved after SunOS 4.1.1.

       Alain Brossard reports that a few very old IPC's experience the
       this failure when booting over the network, and the following
       incantation at the ROM monitor prompt fixed the problem:

               ok 7f fff0.0000 smap!
               ok boot net

20) I have some old SMD drives and controllers and/or a 9-track tape
   drive. Can I still use them with newer machines and OS versions?

       SMD support is limited to VME-based machines, of which the 4/6xx
       is the most recent. Stock SunOS and Solaris support these
       devices on the sun4 architecture (all VME-based sun-4's except
       the 4/6xx) but not on the sun4m architecture (the 4/6xx). It is
       available for the 4/6xx as a special package, however.

21) My Sun-3 won't boot from a SCSI disk, but when I hook the disk up
   to another machine or boot from another disk, it works fine. What?
21a)My Sun-4 won't boot from a SCSI disk, but...

       SunOS can use SCSI disks with SCSI parity turned on, but in
       general Sun-3's can't boot from them, although there are reports
       that certain model/boot ROM versions can (3/60 with > 2.9).
       Sun-4's apparently can boot from disks with parity turned on.
       Check the jumpers on the drive or the SCSI converter card
       (Emulex MD-21, Adaptec ACB4000, etc.).

       For a Sun-4, the problem may also be that the drive is
       initiating synchronous negotiation. The boot ROMs can't cope
       with this; they expect the kernel to initiate synchronous
       negotiation after booting. Check the jumpers on the drive.

22) I'm getting "timeout" and "disk not responding to selection" errors
   with a brand-new SCSI disk.

       Check the temperature in the disk enclosure! Many newer SCSI
       drives (especially Seagate, apparently) have the ability to spin
       down and otherwise quiesce when the drive gets too hot. When the
       drive it accessed, it will spin up again, but this takes some
       time and the Sun usually complains before the disk can respond.

23) I have a SunOS CD-ROM with sun3 and/or sun3x versions of the OS on
   it. Can I boot my Sun-3 from this CD-ROM?

       Supposedly ROM versions 3.0.1 and above can boot from a CD-ROM.
       Make sure that you're trying to boot from the correct partition
       (these CD-ROMs usually have bootable partitions for a variety of
       architectures). Try booting from "sd(0,30,x)" where 'x' is a
       partition number.

24) I have a SunPC Accelerator card with an Intel 486DX on it. Can I use
   one of the DX2/DX4 replacement chips?

       Only 5V chips can be used. The SBus provides sufficient power,
       but cooling may be a problem. Adding a heat sink and microfan to
       the new chip will probably solve that problem, but may interfere
       with the next SBus slot.

25) Can I set the stock serial ports to rates higher than 38400?

       Yes, but you have to hack the kernel in order to do it.
       Furthermore, the standard ZS hardware is not capable of
       supporting the normal bit rates (57600 and 115200) unless you
       can supply an external clock and run them in synchronous mode.
       The only higher internally-generated rates are 51200 (pretty
       useless) and 76800, which a few modems can be set to handle.
       Also, the 76800 rate will result in frequent overruns unless it
       is being used for pure output, such as to a printer.

26) Can I get an ergonomic keyboard for my Sun? A trackball?

       Ren Tescher ([email protected]) maintains an unofficial trackball
       FAQ. See also the "Alternatives" sections under KEYBOARDS and
       MICE in this reference. And check:
       http://www.cs.princeton.edu/grad/dwallach/tifaq/keyboards.html

27) What's this 80-pin SCSI connector?

       It is an SCA connector, as defined by the Small Form Factor
       Committee, which provides a wide single-ended SCSI connection
       and power (+12V, +5V). The standard number is SFF8015 23A.

28) My SPARCstation 10 says "Data Access Error" and chokes when
   cold-booting, but typing "boot" at the ROM monitor prompt works.
   What?

       Paul J. Grillo reports that this usually means that the boot ROM
       can't find the boot block on the disk, possibly because there
       has not been enough time for the disk to spin up yet (and by the
       time the user does a manual boot, the disk is up and running, so
       the machine boots normally).

29) Why can't I get my Fast Ethernet SBus card from Sun to work?

       With SunOS 4.1.3 or higher, the boot ROM revision must be 2.3 or
       higher, the network must not use trailers, the card cannot be in
       an SBus expansion chassis, and it is only supported in
       sun4m-architecture machines.

       These cards are also supported by Solaris 2.3 Hardware 5/94 and
       later Solaris revisions. The same restrictions apply, but
       support has been added for the SPARCstation 2, IPX, SPARCserver
       1000, and SPARCcenter 2000.

30) I have a disk for which there is no entry in format.dat. Does
   anybody have an entry I can use?

       There is an extended format.dat available at:
       ftp://ftp.cdf.toronto.edu/pub/sun-managers/format.dat.

31) I just added some SIMMs, and now I'm getting odd DMA errors and/or
   Ethernet problems. What?

       Evidently there are some SIMMs out there now which do not
       actually store parity bits, but rather calculate them on the
       fly. It is, I guess, cheaper, but obviously not much use for
       error detection, and causes major problems for systems which use
       those extra bits for things other than parity, as apparently
       some Sun systems do. The problem arises when these
       "logic-parity" SIMMs are sold as ordinary parity SIMMs...

       From Vaughan Pratt:

       I had bought 1x36's from NCA before that worked fine in a batch
       of 7 SLCs [...] Satisfied that NCA's SIMMs worked in SLCs, I
       bought some more. The second batch of 1x36's caused occasional
       DMA and ethernet problems, which were hard to diagnose. A disk
       had previously been giving trouble, and I wasted a lot of time
       thinking that the disk was the problem before getting suspicious
       about an ethernet slowdown and finally tracking the problem down
       to the RAM.

       The attitude at NCA Palo Alto was that the two chip types were
       both 1x36 and were interchangeable. They seem completely
       oblivious to the fact that one type is only 1x32 plus faked or
       logic parity.

32) Should internal SCSI drives be terminated?

       It depends. For older systems (Sun-2's and Sun-3's except the
       3/80, non-desktop SPARCs), the only difference between internal
       drives and external drives is which way the cables go. They
       should be terminated as normal for SCSI.

       For the 3/80 and desktop SPARCs (SPARCstation 1, 1+, 2, 4, 5,
       10, 20, IPC, IPX, etc.), there is some confusion. In some cases,
       SCSI terminating resistors are present on the motherboard
       itself, and internal drives are regarded as being close enough
       to that terminator not to need their own terminators. In other
       cases, there may be a terminating feedthrough connector in-line
       with a drive. Or none of the above may be present.


   Facts in Search of a Home
   -------------------------

+ Sun 3/50's and 3/60's often used the Matsushita ETX-593C101M power
 supply, capable of supplying 100W (15A @ 5V, 2A @ -5V, and 1.3A @
 12V). The 3/75 had a 150W power supply. See pinouts below.

+ The Sun 2/50 power supply is rated at 22A @ 5V, 1.5A @ 12V, and 0.5A @
 -12V.

+ Mbus modules for the SPARCstation 10/514 (two 50MHz CPUs and
 corresponding 1M caches) are physically so large that they each cover
 two SBus slots. The SBus slots are not actually used, just
 inaccessible.

+ The Adaptec 5500 card was "similar in function to the 4000", which was
 a SCSI-MFM converter used for disks, mostly in Sun-2's. It had a
 number of jumpers:

       A-B     hard reset
         SCSI bus reset initiates hard reset of card when jumped.

       C-D     reserved

       E-F     hard-sectored drive on LUN0

       G-H     hard-sectored drive on LUN1

       J-K     reserved

       DIAG    diagnostics
         Continuously repeat selftest when jumped.

       Par     SCSI parity
         Enable SCSI bus parity checking when jumped. Parity is always
         generated.

       A4      SCSI ID MSB

       A2      SCSI ID

       A1      SCSI ID LSB

+ The Sun HSI/S interface board (501-1725) has four high-speed
 synchronous serial ports with an aggregate bandwidth of 4-5Mbits per
 second. If only two ports are used, full T1 speeds can be used on
 both. SunExpress says it supports X.25, SNA, Frame Relay, PPP, T1, and
 CEPT.

+ The Adaptec ACB4000 MFM-SCSI adapter board and the Emulex MD21
 ESDI-SCSI adapter board may not coexist well on the same SCSI bus. One
 individual reports getting SCSI disconnect errors from the MD21 when
 attempting to run both on the SCSI bus of a 3/60 running SunOS 3.5.

+ The last version of the boot ROM for the 3/60 was 3.0.1. It supports
 cg6 color framebuffers, and is supposed to support cg8 color
 framebuffers as well.


   Miscellaneous Pinouts
   ---------------------

+ DB9 serial ports on 3/80, 4/3xx, others?

       1  DCD          4  DTR          7  RTS
       2  RxD          5  GND          8  CTS
       3  TxD          6  DSR          9  unused

+ parallel port on 3/80

       1  STBN         9  D7           17 SLCN
       2  D0 (data 0)  10 ACK          18 GND
       3  D1           11 BUSY         19 GND
       4  D2           12 PAPE         20 GND
       5  D3           13 SLCT         21 GND
       6  D4           14 AFXN         22 GND
       7  D5           15 ERRN         23 GND
       8  D6           16 ININ         24 GND
                                       25 GND

+ DIN-8 serial port on SPARCstation IPC, others?

                -------
               /  ===  \
              /         \
             /  6  7  8  \
             |           |
             |  3  4  5  |
             \           /
              \   1  2  /
               \_______/

       1  DTR          4  GND          7  DCD
       2  CTS          5  RxD          8  RxC (receive clock)
       3  TxD          6  RTS

+ DIN-8 audio port on SPARCstation IPX, others?

                -------
               /  ===  \
              /         \
             /  6  7  8  \
             |           |
             |  3  4  5  |
             \           /
              \   1  2  /
               \_______/

       1  not connected        4  not connected        7  GND
       2  not connected        5  not connected        8  audio out
       3  audio in -           6  audio in +

+ DB25 A/B serial ports on SPARCstation SLC, ELC, others?

       1  unused       9  unused       17 A-RxC (receive clock)
       2  A-TxD        10 unused       18 unused
       3  A-RxD        11 unused       19 B-RTS
       4  A-RTS        12 B-DCD        20 A-DTR
       5  A-CTS        13 B-CTS        21 unused
       6  A-DSR        14 B-TxD        22 unused
       7  A&B-GND      15 A-TxC in (?) 23 unused
       8  A-DCD        16 B-RxD        24 A-TxC out (transmit clock out)
                                       25 unused

  Note that only port A has full modem control.

+ DB25 A/B serial ports on SPARCstation LX, SPARCclassic, and
 SPARCstation 10, others?

  As for the SLC/ELC, but with additional signals for the B port:

       11 B-DTR        18 B-TxC in     25 B-TxC out

+ 50-pin motherboard card-edge test connector on sun4c's

       1  eject        18 direction    35 unused
       2  unused       19 GND          36 VCC (+5V)
       3  GND          20 step         37 ledout-
       4  unused       21 GND          38 VCC (+5V)
       5  GND          22 wrdata       39 unused
       6  unused       23 GND          40 VCC (+5V)
       7  GND          24 wrgate       41 por-
       8  index        25 GND          42 VCC (+5V)
       9  GND          26 trk00        43 VDD (+12V)
       10 ds0          27 GND          44 VCC (+5V)
       11 GND          28 wrprot       45 VBB (-12V)
       12 unused       29 GND          46 VCC (+5V)
       13 GND          30 rddata       47 unused
       14 unused       31 GND          48 VCC (+5V)
       15 GND          32 hdsel        49 VCC (+5V)
       16 motor_on     33 GND          50 VCC (+5V)
       17 GND          34 unused

  Pins 36, 38, 40, 42, 44, 46, and 48-50 (VCC, +5V) are the same as
  pins 1, 2, 7, and 8 on the power connector.

  Pin 37 (ledout-) is the same as pin 2 on the speaker connector.

  Pin 41 (por-) is Power-On Reset, like the Power Good signal on PC
  power supplies, and the same as pin 6 on the power connector.

  Pin 43 (VDD, +12V) is the same as pins 5 and 11 on the power
  connector.

  Pin 45 (VBB, -12V) is the same as pin 12 on the power connector.

+ Power supply connector on (PS?) chassis for 3/50, 3/60, 3/75

       1   -5V     white       7   GND     black
       2   Pwr OK  brown       8   GND     black
       3   +12V    blue        9   +5V     red
       4   GND     black       10  +5V     red
       5   GND     black       11  +5V     red
       6   GND     black       12  +5V     red


   SIMM Compatibility Chart
   ------------------------

  These charts mostly come from the 12/15/93 Field Engineer manual. An
'x' means that the indicated SIMM was available from Sun installed or as an
option for the machine shown. An 's' means that the SIMM was tested and
supported by Sun in the machine shown.

  The 'B' column is bits, 'P' is pins, and 'S' is speed, in
nanoseconds. Part numbers marked with '*' mean that that SIMM is also
present in other model tables.

       SIZE B  P   S    P/N                   MACHINES
       ---- -- -- --- --------  -----------------------------------------

Sun-3 and Sun 386i:

                                3/60  3/60LE  3/80    386i/150  386i/250
       256K           501-1349           x
       1M   9  30 100 501-1239   x
       1M             501-1346           x
       1M             501-1375                                     x
       1M   9  30 100 501-1408*                 x
       1M             501-1424                            x        x
       1M             501-1510                                     x

Sun-4 (sun4 and sun4c architectures)

                                SLC  ELC  IPC  IPX   1    1+   2
                                4/20 4/25 4/40 4/50 4/60 4/65 4/75 4/1xx 4/3xx
       256K 9  30     501-1314                                       x
       1M   9  30 100 501-1408*                       x    x               x
       1M   9  30     501-1466*                                      x     s
       1M   9  30     501-1544                                             x
       1M   9  30     501-1565*                                            x
       1M   9  30 80  501-1697              x              x               x
       4M   9  30 80  501-1625              x         x    x
       4M   33 72     501-1676    x
       4M   9  30     501-1682*                                            x!
       4M   33 72     501-1698    x    s
       4M   9  30 80  501-1739*             x         x    x    x          x
       4M   33 72     501-1812         x         x
       16M  33 72     501-1822         x         x
       16M  33 72     501-1915                   x

       ! 4M SIMMs are not supported on the 4/330 CPU.

Sun-4 (sun4m architecture)
                                clsX   classic LX/ZX
                                4/10   4/15    4/30    SS10    4/6xx
       1M   9  30     501-1466*                                  s!
       1M   9  30     501-1565*                                  s!
       1M         60  501-2289   x
       2M         60  501-2433   x
       4M   9  30     501-1682*                                  s!
       4M   9  30 80  501-1739*                                  x
       4M         60  501-1991   x      x        x
       4M   9  30     501-2460                                   x
       16M        70  501-1785                           x
       16M        60  501-2059   x      x        x
       16M  9  30 80  501-2060                                   x
       16M        70  501-2273                           x
       64M        70  501-1930                           x

       ! Only supported on 4/6xx expansion memory boards, not on the
         4/6xx CPU.

Sun-4 (sun4d architecture)

                                SPARCserver 1000       SPARCcenter 2000
       8M         70  501-1817         x                       x
       32M        70  501-2196         x                       x

Additional notes:

+ SPARCstation 1, 1+, 2, and IPC

  1M x 9 30-pin 9-chip IBM-compatible SIMMs. 100ns or faster for the 1,
  1+, and IPC; 80ns or faster for the 2. The 2 and IPC can also take 4M
  SIMMs.

+ SPARCstation 10, 20

  SS10: 16M or 64M 70ns SIMMs. Can also use SIMMs of appropriate sizes
        from SS20.

  SS20: 16M, 32M, or 64M 60ns SIMMs. The 16M and 64M SIMMs can also be
        used in SS10s, but not the 32M SIMMs.

+ SPARCstation 5

  8M or 32M SIMMs.

             END OF PART II OF THE SUN HARDWARE REFERENCE

=============================================================================

PART III
                               ========
                                BOARDS

BOARDS
======

  This section covers the various circuit boards which make up or are
used with Sun systems. This includes: CPU boards/motherboards; memory
boards; video boards and video accelerator boards; SCSI controller
boards; non-SCSI disk controller boards such as SMD and IPI controllers
and boards used to connect non-SCSI disks to SCSI busses; non-SCSI tape
controller boards such as those used with 9-track tapes; Ethernet boards
(boards for systems where Ethernet is not integrated into the
CPU/motherboard and boards providing second, third, etc. network
connections for systems with integrated Ethernet) and boards for other
networks such as Token-Ring and FDDI; communication boards, including
serial, parallel, synchronous, and X.25 boards; floating-point and other
system accelerator boards; cardcage backplanes; and boards not covered
by the categories above. The first subsection is a brief listing of
boards described in the rest of this section, sorted by bus type
(Multibus, VME, P4, ISA, SBus, MBus, XDBus, SCSI, None, Unknown).


   Crossreference by bus
   ---------------------

MULTIBUS
       370-0502 ? 0167 Computer Products Corporation TAPEMASTER
       370-1012        Xylogics 450 SMD controller
       370-1021        Sky Floating Point Processor
       501-0288        3COM 3C400 Ethernet
       501-0289        cgone(?) color framebuffer
       501-1003        monochrome video/keyboard/mouse TTL only
       501-1004        Sun-2 Ethernet
       501-1006        Sun-2 SCSI/serial
       501-1007        100U, 2/120, 2/170 CPU
       501-1013        1M RAM
       501-1048        1M RAM
       501-1051        2/120, 2/170 CPU
       501-1052        monochrome video/keyboard/mouse ECL/TTL
       501-1054        Multibus-VME adapter
       501-1232        4M RAM
       xxx-xxxx        Systech MTI-800A/1600A Multiple Terminal Interface
       xxx-xxxx        Systech VPC-2200 Versatec Printer/Plotter controller

VME
       501-1014        cgtwo (2160) color framebuffer
       501-1020        2/50 1M memory
       501-1045        "Sun-2" SCSI host adapter, 6U
       501-1046        2/50 2M memory
       501-1047        2/50 4M memory
       501-1054        Multibus-VME adapter
       501-1055        gp graphics processor (accelerator)
       501-1058        gb graphics buffer (used with gp/gp+)
       501-1067        2/50 3M memory
       501-1074        3004 "Carrera" CPU 2M (3/75/140/150/160/180)
       501-1079        2/50 0M memory
       501-1089        cgthree (3160) color framebuffer double-buffered
       501-1094        3004 "Carrera" CPU 4M (3/75/140/150/160/180)
       501-1100        3/2xx CPU
       501-1102        3/2xx,3/4xx,4/2xx 8M memory
       501-1111        3/75 2M memory
       501-1116        cgthree (3160) color framebuffer single-buffered
       501-1121        3/75 0M memory
       501-1122        3/75 4M memory
       501-1131        3/1xx 2M memory
       501-1132        3/1xx 4M memory
       501-1134        3/110 CPU
       501-1138        "Sun-2" SCSI host adapter, external
       501-1139        gp+ graphics processor (accelerator)
       501-1141        2050 CPU 1M (2/50)
       501-1142        2050 CPU 2M (2/50)
       501-1143        2050 CPU 4M (2/50)
       501-1144        2050 CPU 1M (2/130/160)
       501-1145        2050 CPU 2M (2/130/160)
       501-1146        2050 CPU 4M (2/130/160)
       501-1149        "Sun-2" SCSI host adapter, internal
       501-1163        3004 "Carrera" CPU 2M (3/75/140/150/160/180)
       501-1164        3004 "Carrera" CPU 4M (3/75/140/150/160/180)
       501-1167        "Sun-2" SCSI host adapter, internal/external
       501-1170        "Sun-3" SCSI host adapter, internal
       501-1199        4/1xx CPU 8M w/o FPU
       501-1206        3/2xx CPU
       501-1208        3004 "Carrera" CPU 4M (3/75/140/150/160/180)
       501-1209        3/110 CPU
       501-1217        "Sun-3" SCSI host adapter, external
       501-1236        "Sun-3" SCSI host adapter, 6U
       501-1237        4/1xx CPU 8M with FPU
       501-1254        4/2xx 32M memory
       501-1267        cgfive color framebuffer
       501-1268        gp2 graphics processor (accelerator)
       501-1274        4/2xx CPU with FPC-6/4
       501-1299        3/4xx CPU
       501-1316        4/3xx CPU 8M
       501-1317        4/330 16M memory
       501-1319        cgthree (3160) color framebuffer 1024x1024
       501-1333        4/4xx 32M memory
       501-1381        4/4xx CPU
       501-1383        TAAC-1 application accelerator, POP board
       501-1434        cg9 color framebuffer
       501-1436        4/330 8M memory
       501-1447        TAAC-1 application accelerator, DFB board
       501-1451        3/4xx,4/2xx 32M memory
       501-1462        4/1xx CPU 16M w/o FPU
       501-1463        4/1xx CPU 16M with FPU
       501-1464        4/1xx CPU 32M w/o FPU
       501-1465        4/1xx CPU 32M with FPU
       501-1491        4/2xx CPU with FPU-2 2-hi backpanel
       501-1495        4/3xx 48M memory (except 4/330)
       501-1512        4/1xx CPU 8M w/o FPU
       501-1513        4/1xx CPU 8M with FPU
       501-1514        4/1xx CPU 16M w/o FPU
       501-1515        4/1xx CPU 16M with FPU
       501-1516        4/1xx CPU 32M w/o FPU
       501-1517        4/1xx CPU 32M with FPU
       501-1522        4/2xx CPU with FPC-6/4 2-hi backpanel
       501-1537        VX Visualization Accelerator/Super Frame Buffer
       501-1538        MVX Visualization Accelerator/Pixel Processor
       501-1550        3/4xx CPU
       501-1563        4/3xx 24M memory (except 4/330)
       501-1564        4/3xx 48M memory (except 4/330)
       501-1576        3/4xx,4/2xx 16M memory
       501-1656        4/1xx CPU 8M w/o FPU
       501-1657        4/1xx CPU 8M with FPU
       501-1658        4/1xx CPU 16M w/o FPU
       501-1659        4/1xx CPU 16M with FPU
       501-1660        4/1xx CPU 32M w/o FPU
       501-1661        4/1xx CPU 32M with FPU
       501-1686        4/6xx motherboard 0M
       501-1703        4/3xx 32M memory (except 4/330)
       501-1704        4/330 32M memory
       501-1711        4/330 16M memory
       501-1721        4/4xx 128M memory
       501-1723        4/330 8M memory
       501-1742        4/3xx CPU 32M
       501-1767        4/6xx 64M memory
       501-1755        4/330 32M memory
       501-1847        Prestoserve NFS accelerator (see Disk Controllers)
       501-1899        4/4xx CPU
       501-1901        4/6xx 0M memory
       501-2055        4/6xx motherboard 0M
       501-8020        3/E monochrome framebuffer
       501-8028        3/E CPU
       501-8029        3/E color framebuffer cgtwo
       501-8030        3/E 12M memory
       501-8031        3/E 4M memory
       501-8035        4/E (SPARCengine 1) CPU 4M w/Weitek
       501-8036        4/E (SPARCengine 1) 16M memory
       501-8042        4/E (SPARCengine 1) 4M memory
       501-8058        4/E (SPARCengine 1) CPU 4M w/o Weitek
       501-8060        4/E (SPARCengine 1) combo memory/SBus slots (0M)
       501-8064        4/E (SPARCengine 1) CPU 16M w/Weitek

P4
       501-1210        3/60 cgfour color framebuffer
       501-1247        mgthree ECL/TTL mono framebuffer
       501-1248        cgfour color framebuffer
       501-1371        cgeight color framebuffer
       501-1374        cgsix color framebuffer
       501-1637        mgthree ECL/TTL mono framebuffer 3/80 backpanel
       501-1402        mgfour ECL/TTL/Analog mono framebuffer 3/80 backpanel
       501-1443        cgfour color framebuffer 3/80 backpanel
       501-1505        cgsix color framebuffer 3/80 backpanel
       501-1518        cgeight color framebuffer
       501-1532        cgsix color framebuffer
       501-1577        cgeight color framebuffer 3/80 backpanel

ISA
       501-1397        386i SunVGA/EGA

SBUS
       370-1401        Prestoserve NFS accelerator (see Disk Controllers)
       501-1823        4/75 (SPARCstation 2) 32M primary expansion memory
       501-1824        4/75 (SPARCstation 2) 32M secondary expansion memory

MBUS
       370-1388        SM100 SPARC module
       501-1889        SM30 SPARC module
       501-2218        SM20 SPARC module
       501-2219        SM40 SPARC module
       501-2239        SM30 SPARC module
       501-2258        SM41 SPARC module
       501-2270        SM41 SPARC module
       501-2318        SM41 SPARC module
       501-2352        SM51 SPARC module
       501-2351        SM51-2 SPARC module
       501-2358        SM40 SPARC module
       501-2359        SM41 SPARC module
       501-2360        SM51 SPARC module
       501-2361        SM51 SPARC module
       501-2387        SM51 SPARC module
       501-2431        SM52X dual SPARC module
       501-2444        SM520 dual SPARC module
       501-2445        SM521 dual SPARC module

XDBUS
       501-1866        SPARCcenter 2000 motherboard 0M
       501-2334        SPARCcenter 2000 motherboard 0M
       501-2336        SPARCserver 1000 motherboard 0M
       501-2362        SPARCcenter 2000 motherboard 0M

SCSI
       370-1010        Adaptec ACB4000 SCSI-MFM controller
       370-1011        Sysgen SC4000 SCSI/QIC-II controller
       xxx-xxxx        Emulex MT-02 SCSI/QIC-02 controller
       xxx-xxxx        Emulex MD21 SCSI-ESDI controller

NONE
       501-1075        3/50 motherboard w/o FPU
       501-1133        3/50 motherboard w/o FPU
       501-1162        3/50 motherboard w/o FPU
       501-1205        3/60 motherboard 4M with mono
       501-1207        3/50 motherboard with FPU
       501-1241        386i/150 motherboard
       501-1322        3/60 motherboard 4M w/o mono
       501-1324        386i/250 motherboard
       501-1334        3/60 motherboard 0M with mono
       501-1345        3/60 motherboard 0M w/o mono
       501-1378        3/60LE motherboard
       501-1382        4/60 (SPARCstation 1) motherboard
       501-1401        3/80 motherboard
       501-1413        386i/250 motherboard
       501-1414        386i/150 motherboard
       501-1627        4/20 (SPARCstation SLC) motherboard 8M
       501-1629        4/60 (SPARCstation 1) motherboard
       501-1632        4/65 (SPARCstation 1+) motherboard 8M w/FPU
       501-1638        4/75 (SPARCstation 2) motherboard 16M FCC-A
       501-1650        3/80 motherboard
       501-1680        4/20 (SPARCstation SLC) motherboard 0M
       501-1689        4/40 (SPARCstation IPC) motherboard 8M FCC-A
       501-1720        4/20 (SPARCstation SLC) motherboard 8M
       501-1733        SPARCstation 10 motherboard
       501-1744        4/75 (SPARCstation 2) motherboard 0M FCC-A
       501-1748        4/20 (SPARCstation SLC) motherboard 0M
       501-1780        4/50 (SPARCstation IPX) motherboard 16M
       501-1810        4/50 (SPARCstation IPX) motherboard 0M
       501-1835        4/40 (SPARCstation IPC) motherboard 8M FCC-B
       501-1858        4/75 (SPARCstation 2) motherboard 16M FCC-B
       501-1859        4/75 (SPARCstation 2) motherboard 0M FCC-B
       501-1861        4/25 (SPARCstation ELC) motherboard 0M
       501-1870        4/40 (SPARCstation IPC) motherboard 8M FCC-B
       501-1912        4/75 (SPARCstation 2) motherboard 32M FCC-B
       501-1926        4/75 (SPARCstation 2) motherboard 32M FCC-B
       501-1959        4/50 (SPARCstation IPX) motherboard 16M
       501-1974        4/40 (SPARCstation IPC) motherboard 8M FCC-B
       501-1989        4/75 (SPARCstation 2) motherboard 16M FCC-B
       501-1995        4/75 (SPARCstation 2) motherboard 0M FCC-B
       501-2031        4/30 (SPARCstation LX/ZX) motherboard 32M
       501-2032        4/30 (SPARCstation LX/ZX) motherboard 16M
       501-2044        4/50 (SPARCstation IPX) motherboard 0M
       501-2079        4/10 (SPARCclassic X) motherboard 4M
       501-2200        4/15 (SPARCclassic) motherboard 16M
       501-2233        4/30 (SPARCstation LX/ZX) motherboard 0M
       501-2259        SPARCstation 10 motherboard
       501-2262        4/10/15 (SPARCclassic X/SPARCclassic) motherboard 0M
       501-2274        SPARCstation 10 motherboard (model 20 only)
       501-2313        4/10 (SPARCclassic X) motherboard 8M
       501-2326        4/15 (SPARCclassic) motherboard 32M
       501-2365        SPARCstation 10 motherboard
       501-2377        SPARCstation 10SX/BSX motherboard 0M
       501-2474        4/30 (SPARCstation LX/ZX) motherboard 0M
       501-2495        4/75 (SPARCstation 2) motherboard 0M (270-1926) w/SPARC POWER uP
       501-2496        4/50 (SPARCstation IPX) motherboard 0M (270-1780) w/SPARC POWER uP
       501-2505        4/75 (SPARCstation 2) motherboard 0M (270-1638) w/SPARC POWER uP
       501-2506        4/75 (SPARCstation 2) motherboard 0M (270-1858) w/SPARC POWER uP
       501-2507        4/50 (SPARCstation IPX) motherboard 0M (270-1959) w/SPARC POWER uP

UNKNOWN
       501-1243        386i/150/250 cgthree color framebuffer 1152x900
       501-1244        386i/150/250 monochrome framebuffer 1152x900
       501-1286        386i/150/250 cgthree color framebuffer 1024x768
       501-1298        386i/150/250 8M XP cache memory
       501-1325        386i/150/250 4M XP cache memory
       501-1352        386i/150/250 GXi color framebuffer
       501-1394        386i/150 4M dynamic memory
       501-1428        386i/150/250 0M XP cache memory
       501-1433        386i/150/250 monochrome framebuffer 1024x768
       501-1441        386i/150 8M dynamic memory
       501-1483        DC to DC converter for 501-1637 in 3/80
       501-1567        386i/150/250 monochrome framebuffer 1152x900
       501-1568        386i/150/250 monochrome framebuffer 1024x768
       501-1671        SPARCcenter 2000 system control board
       501-1785        SPARCstation 10 16M SIMM
       501-1930        SPARCstation 10 64M SIMM
       501-1979        SPARCserver 1000 system control board
       501-2001        SPARCstation 10 2M NVSIMM
       501-2197        SPARCserver 1000, SPARCcenter 2000 1M NVSIMM
       501-2273        SPARCstation 10 16M SIMM
       501-2335        SPARCcenter 2000 system control board
       501-2406        SPARCcenter 2000 system control board unprogrammed
       501-2412        SPARCserver 1000 system control board unprogrammed
       555-1054        386i/150/250 0M XP cache memory
       555-1423        386i/150 0M dynamic memory


   CPU boards/motherboards
   -----------------------

501-1007(-04 to -08)    100U,2/120,2/170 CPU Multibus
       10MHz 68010, no floating point chip, MMU, no on-board memory.
       Multibus interface.

       The CPU board is entirely concealed within the chassis. On one
       long edge, it has Multibus card-edge connectors. On the other
       long edge, from top to bottom, it has: a header connector for the
       Sun-1 parallel keyboard and mouse, eight LEDs, and a 50-pin header
       connector (J1) for two serial ports.

       The LEDs display the usual sort of test cycling at power-up.
       Unlike later models, they do not simply blink or cylon while the
       OS is running; instead, they display all sorts of patterns,
       possibly in response to bus activity (?).

       Jumper information:

       J200    Crystal shunt                           JUMPED by default
                Located by crystal at D1.
         Removed for A.T.E. testing, installed for normal operation.

       J400    EPROM select                            JUMPED by default
                Located by EPROMs at D10.
         1-2   selects 27128 EPROMs (default)
         3-4   selects 27256 EPROMs

       J700    Bus priority on serial arbitration      UNJUMPED by default
                Located by bus connectors.

       J701    Common bus request arbiter              UNJUMPED by default
                Located by bus connectors.
         If the CPU board is used in conjunction with a Multibus DMA
         board (such as a disk or tape controller) that does NOT
         support the Common Bus Request (CBRQ), the CPU board must be
         configured such that it gives up the Multibus after every
         Multibus cycle, by jumping J701. This also causes three
         additional wait states for each Multibus access. When this
         jumper is unjumped, the CPU board retains bus mastership until
         a lower priority master requests it by asserting CBRQ.
         Following a CBRQ, the CPU board yields mastership for at least
         one cycle. Certain machine configurations (especially those
         with color) will be much slower if this jumper is jumped.

       J702    Enables the CCLK on P1  JUMPED by default
                Located by bus connectors.

       J703    Enables the BCLK on P1  JUMPED by default
                Located by bus connectors.

       J801    Selects +5V for the parallel mouse      UNJUMPED by default
                Located by J2 header connector.
         Used only in 100U configurations (?).

       The two serial ports on J1 are usually labelled SIO-A and SIO-B
       on the back of the machine and appear as /dev/ttya and /dev/ttyb
       under SunOS. The documented maximum output speed is 19200 bps.
       All ports are wired DTE and are compatible with both RS-232C and
       RS-423, using Zilog Z8530A dual UART chips. The pinout of J1 is:

          3    TxD-A       14  DTR-A       33  DD-B
          4    DB-A        15  DCD-A       34  CTS-B
          5    RxD-A       22  DA-A        36  DSR-B
          7    RTS-A       24  BSY-A       38  GND-B
          8    DD-A        28  TxD-B       39  DTR-B
          9    CTS-A       29  DB-B        40  DCD-B
          11   DSR-A       30  RxD-B       47  DA-B
          13   GND-A       32  RTS-B       49  BSY-B

       Power requirements are +5V @ 6A.

501-1051        2/120,2/170 CPU Multibus
       10MHz 68010, no floating point chip, MMU, no on-board memory.
       Multibus interface.

       The CPU board is entirely concealed within the chassis. On one
       long edge, it has Multibus card-edge connectors. On the other
       long edge, from top to bottom, it has: a header connector for the
       Sun-1 parallel keyboard and mouse, eight LEDs, and a 50-pin header
       connector (J1) for two serial ports.

       Jumper information:

       J100
         Sixteen pins, hardwired. All unjumped by default.

       J102
         1-2   Connects -5V to P1 -5V (default)
         3-4   Connects -5V to regulator

       J200    Crystal shunt                           JUMPED by default
         Removed for A.T.E. testing, installed for normal operation.

       J400
         1-2   selects 27128 EPROMs (default)
         3-4   selects 27256 EPROMs

       J700
         1-2   CPU drives P1 reset                     (jumped by default)
         3-4   P1 INT drives CPU reset                 (unjumped by default)
         5-6   serial arbiter enable                   (unjumped by default)
         7-8   arbiter bus config select               (unjumped by default)
                 If the CPU board is used in conjunction with a
                 Multibus DMA board (such as a disk or tape controller)
                 that does NOT support the Common Bus Request (CBRQ),
                 the CPU board must be configured such that it gives up
                 the Multibus after every Multibus cycle, by jumping
                 this jumper. This also causes three additional wait
                 states for each Multibus access. When this jumper is
                 unjumped, the CPU board retains bus mastership until a
                 lower priority master requests it by asserting CBRQ.
                 Following a CBRQ, the CPU board yields mastership for
                 at least one cycle. Certain machine configurations
                 (especially those with color) will be much slower if
                 this jumper is jumped.

       J701
         1-2   CPU drives P1 BCLK                      (jumped by default)
         3-4   CPU drives P1 CCLK                      (jumped by default)

       J801
         Not used, unjumped by default.

       The two serial ports on J1 are usually labelled SIO-A and SIO-B
       on the back of the machine and appear as /dev/ttya and /dev/ttyb
       under SunOS. The documented maximum output speed is 19200 bps.
       All ports are wired DTE and are compatible with both RS-232C and
       RS-423, using Zilog Z8530A dual UART chips. The pinout of J1 is:

          3    TxD-A       14  DTR-A       33  DD-B
          4    DB-A        15  DCD-A       34  CTS-B
          5    RxD-A       22  DA-A        36  DSR-B
          7    RTS-A       24  BSY-A       38  GND-B
          8    DD-A        28  TxD-B       39  DTR-B
          9    CTS-A       29  DB-B        40  DCD-B
          11   DSR-A       30  RxD-B       47  DA-B
          13   GND-A       32  RTS-B       49  BSY-B

       Power requirements are +5V @ 6A, and -5V @ 0.1A or -12V @ 0.1A.
       The last two are mutually exclusive.

501-1074        3004 "Carrera" CPU VME 2M (3/75/140/150/160/180)
       16.67MHz 68020, 68881, Sun-3 MMU with eight hardware contexts, up
       to 4M of onboard memory (depending on model). VME bus interface.

       From left to right with component side up and connector edge
       toward you (normal top edge at left), the rear edge has: a
       female DB15 AUI Ethernet connector; eight LEDs (bit 0 to the
       top/left); a switch to toggle between Normal and Diagnostics
       modes; a reset switch; a female DB9 monochrome video connector;
       a female DB15 keyboard/mouse connector; and two female DB25
       serial port connectors (ports A and B from left to right
       (top/bottom)).

       Pin 1 is usually in the upper right corner of all connectors.
       Unconnected pins are not listed.

       Jumpers J2501, J2503, and J2505 relate to Ethernet. The pinout
       of the AUI Ethernet connector is:

           2   E.COL+              9   E.COL-
           3   E.TxD+              10  E.TxD-
           5   E.RxD+              12  E.RxD-
           6   GND                 13  +12V
           7   VCC (see J2503)

       The eight LEDs are used for diagnostic purposes.

       If you want the machine to boot normally, set the diagnostics
       switch to "NORM" (labelled "BOOT" on some early versions). If
       you want extended diagnostics when you power up the system, set
       the switch to the "DIAG" position. If the switch is set to
       "DIAG", power-on self-test messages are sent to serial port A.

       The user reset button invokes a watchdog reset. The result
       depends on the value at address 0x17 of the EEPROM. (?)

       The monochrome video output levels are ECL/TTL, with a
       resolution of 1152 x 900 at 61.8KHz horizontal sync and 66Hz
       vertical sync. The pinout of the monochrome video connector is:

           1   VIDEO+              6   VIDEO-
           3   HSYNC               7   GND
           4   VSYNC               8   GND
                                   9   GND

       The pinout of the keyboard/mouse connector is:

           1   RxD0 (keyboard)     8   GND
           2   GND                 9   GND
           3   TxD0 (keyboard)     10  VCC
           4   GND                 11  VCC
           5   RxD1 (mouse)        12  VCC
           6   GND                 14  VCC
           7   TxD1 (mouse)        15  VCC

       The serial ports conform to both RS-232-C and RS-423 and are
       wired DTE. The documented maximum speeds are 19200 bps for
       output and 9600 bps for input. The pinout of the serial ports
       is:

           2   TxD (transmit data)     8   DCD   (Data Carrier Detect)
           3   RxD (receive data)      15  DB    (transmit clock from DCE)
           4   RTS (Request To Send)   17  DD    (receive clock from DCE)
           5   CTS (Clear To Send)     20  DTR   (Data Terminal Ready)
           6   DSR (Data Set Ready)    24  DA    (transmit clock from DTE)
           7   GND                     25  VERR  (-5V)

       The DB, DD, and DA signals are not used with ordinary
       asynchronous equipment such as most modems and terminals,
       printers, etc.).

       There are a variety of jumper blocks, many of which (oddly) have
       separate designations for each pair of pins. Locations below are
       given with component side up and connector edge toward you.

       J100 (pins 5-6 of a block on the left side, beyond the 68881)
         "Cache disable". Normally unjumped.

       J300 (block in far left corner, pin 1 nearest)
         1-2       unused
         3-4       VME interrupt level 1                       JUMPED
         5-6       VME interrupt level 2                       JUMPED
         7-8       VME interrupt level 3                       JUMPED
         9-10      VME interrupt level 4                       JUMPED
         11-12     VME interrupt level 5                       JUMPED
         13-14     VME interrupt level 6                       JUMPED
         15-16     VME interrupt level 7                       JUMPED

       J400 (block toward far left corner, pin 1 nearest)
         1-2       16.67MHz CPU clock                          JUMPED
         3-4       12.5MHz CPU clock                           UNJUMPED
         5-6       12.5MHz FPU clock                           UNJUMPED
         7-8       16.67MHz FPU clock                          JUMPED

       J1001 (single jumper in middle right)
         Jump to enable SCC clock.                             JUMPED

       J1200 (pins 4-5 of block in near left corner)
         Jump for 27256 boot PROMs.                            UNJUMPED

       J1201 (pins 5-6 of block in near left corner)
         Jump for 27512 boot PROMs.                            JUMPED

       J2301 (single jumper in near middle, to right of divider)
         Jump to enable video clock.                           JUMPED

       J2501 (pins 1-2 of block in near left)
         Jump to enable Ethernet clock.                        JUMPED

       J2502 (pins 1-2 of block in near left corner)
         Jump to enable VME clock.                             JUMPED

       J2503 (pins 3-4 of block in near left)
         Jump to put VCC on pin 7 of AUI Ethernet.             UNJUMPED

       J2505 (pins 7-8 of a block on the left side, beyond the 68881)
         Jump for a type-1 Ethernet transceiver, unjump for a type-2.

       J2700-J2703 (block in far left, pin 1 nearest)
         1-2       J2703, jump to enable VME reset master      JUMPED
         3-4       J2702, jump to enable VME reset slave       UNJUMPED
         5-6       J2701, jump to enable VME request/arbiter   JUMPED
         7-8       J2700, jump to enable VME request only      UNJUMPED

       J3101 (pins 1-2 of block on the left side, beyond the 68881)
         Jump for 2M CPU.

       J3102 (pins 3-4 of block on the left side, beyond the 68881)
         Jump for 4M CPU.

       Additional features of interest: the boot PROM is on the near
       left side at location U1200 (grid C5). The IDPROM is
       catty-corner from the boot PROM at location U1409 (grid B10).
       The keyboard fuse is by the reset switch at grid A10. The
       Ethernet fuse is in the middle of the right edge, near J1001, at
       grid E34.

       Note that boot PROM version 1.8 is required to boot from a
       QIC-24 tape. Boot PROM version 2.6 is required to boot from a
       QIC-24 tape in a Sun-2 shoebox. Boot PROM version 2.6 is also
       required to boot from an SMD disk attached to a Xylogics 7053
       SMD controller.

       Note that in order to use a VME 32-bit data device (e.g. MCP,
       HSI, ALM-2, SCA, or "Sun-3" SCSI (?)), the CPU revision must be
       501-1074-22, 501-1094-22, 501-1163-09, 501-1164-09, or later.

       Power requirements are +5V @ 14/14.6A (2M/4M), -5V @ 0.8A.

501-1075        3/50 motherboard w/o FPU 15.7MHz 68020, a socket for a
       68881 floating point chip (at 15.7MHz), Sun-3 MMU with eight
       hardware contexts, 4M of onboard memory. No bus interfaces.

       From left to right, the back edge of the board has: a female
       DB15 keyboard/mouse connector; eight LEDs (bit 0 to the left); a
       switch to toggle between Normal and Diagnostics modes; a BNC
       thin Ethernet connector; a female DB15 AUI Ethernet connector;
       two female DB25 serial port connectors (ports A and B from left
       to right); a female D50 SCSI port connector; and a female DB9
       monochrome video connector.

       Pin 1 is usually in the upper right corner of all connectors.
       Unconnected pins are not listed.

       The pinout of the keyboard/mouse connector is:

           1   RxD0 (keyboard)     8   GND
           2   GND                 9   GND
           3   TxD0 (keyboard)     10  VCC
           4   GND                 11  VCC
           5   RxD1 (mouse)        12  VCC
           6   GND                 14  VCC
           7   TxD1 (mouse)        15  VCC

       The eight LEDs are used for diagnostic purposes. In the chart
       below, a "1" indicates a lit LED, and a "0" indicates an unlit
       LED. The pattern is shown left to right, as it appears on the
       LEDs.

           Pattern     Status                          Error
           --------    ------                          -----
           11111111    Resetting                       CPU or PROMs bad
           00000000    Test 0: CPU to SCC path         CPU board (SCC) bad
           10000000    Test 1: boot PROM               Boot PROM bad
           11000000    Test 3: context register        CPU board (MMU) bad
           00100000    Test 4: segment map RAM rd/wr   CPU board (MMU) bad
           10100000    Test 5: segment map RAM         CPU board (MMU) bad
           01100000    Test 6: page map RAM            CPU board (MMU) bad
           11100000    Test 7: memory data path        CPU board bad
           00010000    Test 8: bus error detection     CPU board bad
           10010000    Test 9: interrupt capability    CPU board bad
           01010000    Test 10: MMU read access        CPU board bad
           11010000    Test 11: MMU write access       CPU board bad
           00110000    Test 12: write to invalid page  CPU board bad
           10110000    Test 13: write to protected pg  CPU board bad
           01110000    Test 14: parity error check     CPU board bad
           11110000    Test 15: parity error check     CPU board bad
           00001000    Test 16: memory tests           CPU board bad
           00000001    Self-tests have found an error  See below
           00000010    An exception class error found  See below

       "Marching ones" (cycling through 10000000, 01000000, 00100000,
       etc.) indicates that Unix is running OK. On power up, it cycles
       through the tests in the chart above, then boots Unix. Pattern
       11111111 may also mean that a SCSI device was powered up prior
       to the CPU being powered up. If LED 7 (00000001) lights up while
       the tests are being performed, it indicates that the test
       failed. If LED 6 (00000010) lights up while the tests are being
       performed, it indicates that an unexpected error (bus error,
       address error, unexpected interrupt, etc.) occurred during the
       test. When all tests are finished, LED 5 (00000100) starts
       blinking to indicate that the ROM monitor is running and/or Unix
       is booting.

       If you want the machine to boot normally, set the diagnostics
       switch to "NORM" (labelled "BOOT" on some early versions). If
       you want extended diagnostics when you power up the system, set
       the switch to the "DIAG" position. If the switch is set to
       "DIAG", power-on self-test messages are sent to serial port A.

       Jumper J0642 and switch S0618 relate to Ethernet. The pinout of
       the AUI Ethernet connector is:

           2   E.COL+              9   E.COL-
           3   E.TxD+              10  E.TxD-
           5   E.RxD+              12  E.RxD-
           6   GND                 13  +12V

       The serial ports conform to both RS-232-C and RS-423 and are
       wired DTE. The documented maximum speeds are 19200 bps for
       output and 9600 bps for input. The pinout of the serial ports
       is:

           2   TxD (transmit data)     8   DCD   (Data Carrier Detect)
           3   RxD (receive data)      15  DB    (transmit clock from DCE)
           4   RTS (Request To Send)   17  DD    (receive clock from DCE)
           5   CTS (Clear To Send)     20  DTR   (Data Terminal Ready)
           6   DSR (Data Set Ready)    24  DA    (transmit clock from DTE)
           7   GND                     25  VERR  (-5V)

       The DB, DD, and DA signals are not used with ordinary
       asynchronous equipment such as most modems and terminals,
       printers, etc.).

       The pinout of the SCSI connector is:

           1   GND         17  GND         34  GND
           2   data bus 0  18  data parity 35  GND
           3   GND         19  GND         36  busy
           4   data bus 1  20  GND         37  GND
           5   GND         21  GND         38  acknowledge
           6   data bus 2  22  GND         39  GND
           7   GND         23  GND         40  reset
           8   data bus 3  24  GND         41  GND
           9   GND         25  GND???      42  message
           10  data bus 4  26  ???         43  GND
           11  GND         27  GND         44  select
           12  data bus 5  28  GND         45  GND
           13  GND         29  GND         46  command/data
           14  data bus 6  30  GND         47  GND
           15  GND         31  GND         48  request
           16  data bus 7  32  attention   49  GND
                           33  GND         50  input/output

       and the pattern of the pins is:

           49    46    43  ....  19    16    13    10    7    4    1
              48    45    42  ....  18    15    12    9    6    3
           50    47    44    41  ....  17    14    11    8    5    2

       The monochrome video output levels are ECL/TTL, with a
       resolution of 1152 x 900 at 62KHz horizontal sync and 66Hz
       vertical sync. The pinout of the monochrome video connector is:

           1   VIDEO+              6   VIDEO-
           3   HSYNC               7   GND
           4   VSYNC               8   GND
                                   9   GND

       There are five jumpers/jumper blocks and one DIP switch block.
       All locations are given with component side up and connector
       side toward you.

       J0108 (forward far left corner, pin 1 at right)
        1-2    jump to test the onboard 4M RAM                 JUMPED
        3-4    jump to run "ETH SIA CAL." test                 UNJUMPED
        5-6    jump to "SCSI on (on is active high)"           UNJUMPED
        7-8    jump to "DCP on (on is active high)"            JUMPED

       J0123 (forward far left corner, pin 1 at right)
        1-2    15.7MHz clock for 68020                         JUMPED
        3-4    12.5MHz clock for 68020                         UNJUMPED
        5-6    12.5MHz clock for 68881                         UNJUMPED
        7-8    15.7MHz clock for 68881                         JUMPED

       J0642 (K4, by S0618, near AUI Ethernet connector)
        1-2    jump for type-1 Ethernet transceiver, unjump for type-2

       J0702 (leftish middlish, by 68881 socket and boot PROMs, pin 1
              at right)
        1-2    jump for 27256 PROMs                            UNJUMPED
        3-4    jump for 26512 PROMs                            JUMPED

       J1500 (right middlish)
        1-2    jump for 100MHz video clock                     JUMPED

       S0618 (by AUI Ethernet connector, switch 1 toward rear)
        1-8    ON for thin Ethernet (BNC connector), OFF for AUI

       Additional features of interest: the IDPROM is at location U0204
       (grid N21), on the left side toward the far end, by the battery.
       The boot PROM is at location U0701 (grid N9), on the left side
       toward the near end. The keyboard fuse F1 is near serial port B
       at grid F4 and the Ethernet fuse F2 is near the SCSI port at
       grid E4.

       Note that boot PROM version 1.8 is required to boot from a
       QIC-24 tape. Boot PROM version 2.5 is required to boot from a
       QIC-24 tape in a Sun-2 shoebox.

       Note that CPU revisions lower than 501-1075-10, 501-1162-08, and
       501-1133-10 may fail under SunOS 3.3. Additionally, the 370-1011
       Sysgen SC4000 SCSI/QIC-11 tape controller does not work with the
       3/50 under SunOS 3.3.

       Note that a bus error may occur when large executables are run
       during a prefetch across a page boundary with CPU revisions
       lower than 501-1162-11 and 501-1207-04.

       Power requirements are +5V @ 13.5A max, -5V (-5.2V?) @ 0.8A max,
       and +12V @ 0.5A max.

501-1094        3004 "Carrera" CPU VME 4M (3/75/140/150/160/180)
       See 501-1074.

501-1100        3/2xx CPU VME
       25MHz 68020, 20MHz 68881 floating point chip, Sun-3 MMU with
       eight hardware contexts, no on-board memory but 64K write-back
       cache, direct-mapped, virtually-indexed and virtually-tagged,
       with 16-byte lines. VME bus interface. 256K of dual-ported video
       RAM for the onboard high-resolution monochrome framebuffer.

       From left to right, with component side up and connector edge
       toward you (normal top at left), the rear edge of the board has:
       two female DB25 serial ports (A and B from left to right
       (top/bottom)); a female DB15 AUI Ethernet connector; a reset
       button; a switch to toggle between Normal and Diagnostics modes;
       a female DB15 keyboard/mouse connector; eight LEDs (bit 0 at the
       top/left); and at the bottom, a female DB9 high-res monochrome
       video connector.

       The serial ports conform to both RS-232-C and RS-423 and are
       wired DTE. The pinout of the serial ports is:

           2   TxD (transmit data)     8   DCD   (Data Carrier Detect)
           3   RxD (receive data)      15  DB    (transmit clock from DCE)
           4   RTS (Request To Send)   17  DD    (receive clock from DCE)
           5   CTS (Clear To Send)     20  DTR   (Data Terminal Ready)
           6   DSR (Data Set Ready)    24  DA    (transmit clock from DTE)
           7   GND                     25  -5V

       The pinout of the AUI Ethernet connector is:

           1   chassis ground      7   VCC (see J2401)
           2   E.COL+              9   E.COL-
           3   E.TxD+              10  E.TxD-
           4   chassis ground      12  E.RxD-
           5   E.RxD+              13  +12V
           6   GND

       The user reset button invokes a watchdog reset. The result
       depends on the value at address 0x17 of the EEPROM.

       If you want the machine to boot normally, set the diagnostics
       switch to "NORM". If you want extended diagnostics when you
       power up the system, set the switch to the "DIAG" position. If
       the switch is set to "DIAG", power-on self-test messages are
       sent to serial port A at 9600 bps or serial port B at 1200 bps.

       The pinout of the keyboard/mouse connector is:

           1   RxD0 (keyboard)     8   GND
           2   GND                 9   GND
           3   TxD0 (keyboard)     10  VCC
           4   GND                 11  VCC
           5   RxD1 (mouse)        12  VCC
           6   GND                 14  VCC
           7   TxD1 (mouse)        15  VCC

       The eight LEDs are used for diagnostic purposes. In the chart
       below, a "1" indicates a lit LED, and a "0" indicates an unlit
       LED. Bit 0 is at the top and bit 7 is at the bottom; the
       patterns below are shown with bit 0 on the left.

           Pattern     Status
           --------    ------
           11111111    Resetting
           10000000    PROM checksum test
           01000000    DVMA register test
           11000000    Context register test
           00100000    Segment map read/write test
           10100000    Segment map address test
           01100000    Page map test
           11100000    Memory path data test
           00010000    Nonexistent memory bus error test
           10010000    Interrupt test
           01010000    Time-Of-Day clock interrupt test
           11010000    MMU protection/status tests
           00110000    ECC error test
           10110000    Cache data 3-pattern test
           01110000    Cache tag 3-pattern test
           11110000    Memory tests
           01001111    Initializing MMU
           00000001    Self-tests have found an error
           00000010    An exception class error occurred

       "Marching ones" (cycling through 10000000, 01000000, 00100000,
       etc.) indicates that Unix is running OK. On power up, it cycles
       through the tests in the chart above, then boots Unix. If LED 7
       (00000001) lights up while the tests are being performed, it
       indicates that the test failed. If LED 6 (00000010) lights up
       while the tests are being performed, it indicates that an
       unexpected error (bus error, address error, unexpected
       interrupt, etc.) occurred during the test. When all tests are
       finished, LED 5 (00000100) starts blinking to indicate that the
       ROM monitor is running and/or Unix is booting.

       The monochrome video output levels are ECL/TTL. The output is
       high resolution (1600 x 1280, 89KHz horizontal sync, 66Hz
       vertical sync) only and a high-resolution monochrome monitor
       must be used. The pinout of the monochrome video connector is:

           1   VIDEO+              6   VIDEO-
           3   HSYNC               7   GND
           4   VSYNC               8   GND
                                   9   GND

       There are a variety of jumper blocks. All locations are given
       with component side up and connector side toward you.

       J100 (single jumper at H-5, in middle left)
         Jump to disable 68020 cache.                          UNJUMPED

       J200 (block at J-6, in middle left, pin 1 to right)
         1-2   unused
         3-4   25MHz CPU clock                                 JUMPED
         5-6   25MHz FPU clock                                 UNJUMPED
         7-8   20MHz FPU clock                                 JUMPED

       J300 (single jumper at H-2, in middle left edge, only on 501-1100)
         Jump to enable P2 bus.                                JUMPED

       J500 (block at H-3/H-4, in middle left, pin 1 to right)
         1-2   VME interrupt level 1                           JUMPED
         3-4   VME interrupt level 2                           JUMPED
         5-6   VME interrupt level 3                           JUMPED
         7-8   VME interrupt level 4                           JUMPED
         9-10  VME interrupt level 5                           JUMPED
         11-12 VME interrupt level 6                           JUMPED
         13-14 VME interrupt level 7                           JUMPED
         15-16 unused                                          UNJUMPED

       J2000 (block at H-1, in middle left, pin 1 to right)
         1-2   Select 27512 boot PROM                          JUMPED
         3-4   Select 27256 boot PROM                          UNJUMPED

       J2401 (block at A-16, in near middle, pin 1 nearest)
         1-2   Enable Ethernet clock                           JUMPED
         3-4   +5V to Ethernet tap                             UNJUMPED
         5-6   jump for type-1 transceiver (capacitive), unjump for
                type-2 (xformer)
         7-8   SCC clock enable (501-1206 only)                JUMPED

       J2500 (block at L-11, in far left, pin 1 to right)
         1-2   CPU is VME arbiter & requester                  JUMPED
         3-4   CPU is VME requester only                       UNJUMPED
         5-6   CPU is VME reset slave                          UNJUMPED
         7-8   CPU is VME reset master                         JUMPED

       J2600 (single jumper at L-9, in far left)
         Jump to enable 16MHz VME clock.                       JUMPED

       Additional features of interest: the boot PROM is in the near
       left at location U2008 (grid C1). The IDPROM is in the middle
       left at location U1907 (grid E3 (E4?)). The Ethernet fuse is by
       the Ethernet connector at grid A12 and the keyboard fuse by the
       reset switch at grid A17. The lithium battery (BBCV2) in the far
       middle is Matsushita Electric/Panasonic part number BR2325. It
       is documented as not being a customer-replacable part.

       Note that boot PROM version 2.6 is required to boot from an SMD
       disk connected to a Xylogics 7053 SMD controller.

       Note that when "CPU EPROM 2.1" (probably boot PROM version 2.1)
       is installed, two control-G's cause the keyboard bell to remain
       on until the system is reset.

       Note that the minimum CPU revision required for use with the IPC
       is 501-1100-06 or 501-1206-06.

       Power requirements are +5V @ 22.5A and -5V @ 0.6A.

501-1133        3/50 motherboard w/o FPU
       See 501-1075.

501-1134        3/110 CPU VME
       68020, 68881, Sun-3 MMU with eight hardware contexts, 4M onboard
       RAM. VME bus interface. Onboard cgfour color framebuffer.

       From left to right with component side up and connector edge
       toward you (normal top edge at left), the rear edge has: a
       female DB15 AUI Ethernet connector; a switch to toggle between
       Normal and Diagnostics modes; eight LEDs (bit 0 to the
       left/top); a female DB15 keyboard/mouse connector; two female
       DB25 serial port connectors (ports A and B from left to right
       (top/bottom)); four BNC color video connectors; and a reset
       switch.

       Pin 1 is usually in the upper right corner of all connectors.
       Unconnected pins are not listed.

       Jumpers J2500, J2501, and J2503 relate to Ethernet. The pinout of
       the AUI Ethernet connector is:

           2   E.COL+              9   E.COL-
           3   E.TxD+              10  E.TxD-
           5   E.RxD+              12  E.RxD-
           6   GND                 13  +12V
           7   VCC (see J2503)

       If you want the machine to boot normally, set the diagnostics
       switch to "NORM" (labelled "BOOT" on some early versions). If
       you want extended diagnostics when you power up the system, set
       the switch to the "DIAG" position. If the switch is set to
       "DIAG", power-on self-test messages are sent to serial port A.

       The eight LEDs are used for diagnostic purposes.

       The pinout of the keyboard/mouse connector is:

           1   RxD0 (keyboard)     8   GND
           2   GND                 9   GND
           3   TxD0 (keyboard)     10  VCC
           4   GND                 11  VCC
           5   RxD1 (mouse)        12  VCC
           6   GND                 14  VCC
           7   TxD1 (mouse)        15  VCC

       The serial ports conform to both RS-232-C and RS-423 and are
       wired DTE. The documented maximum speeds are 19200 bps for
       output and 9600 bps for input. The pinout of the serial ports
       is:

           2   TxD (transmit data)     8   DCD   (Data Carrier Detect)
           3   RxD (receive data)      15  DB    (transmit clock from DCE)
           4   RTS (Request To Send)   17  DD    (receive clock from DCE)
           5   CTS (Clear To Send)     20  DTR   (Data Terminal Ready)
           6   DSR (Data Set Ready)    24  DA    (transmit clock from DTE)
           7   GND                     25  VERR  (-5V)

       The DB, DD, and DA signals are not used with ordinary
       asynchronous equipment such as most modems and terminals,
       printers, etc.).

       The four video connectors are Blue, Green, Red, and Sync from
       left to right (top/bottom). The resolution is 1152 x 900 with a
       61.8KHz horizontal sync and 66Hz vertical sync.

       The user reset button invokes a watchdog reset. The result
       depends on the value at address 0x17 of the EEPROM. (?)

       There are a variety of jumper blocks, many of which (oddly) have
       separate designations for each pair of pins. Locations below are
       given with component side up and connector edge toward you.

       J100 (in a jumper block in far left)
         "Cache disable."                                      UNJUMPED

       J300 (block in far left corner, pin 1 nearest)
         1-2   unused
         3-4   P1 (VME) interrupt request 1                    JUMPED
         5-6   P1 (VME) interrupt request 2                    JUMPED
         7-8   P1 (VME) interrupt request 3                    JUMPED
         9-10  P1 (VME) interrupt request 4                    JUMPED
         11-12 P1 (VME) interrupt request 5                    JUMPED
         13-14 P1 (VME) interrupt request 6                    JUMPED
         15-16 P1 (VME) interrupt request 7                    JUMPED

       J400 (in a jumper block in far left)
         Jump to enable main clock.                            JUMPED

       J1001 (single jumper in middle, to right of 68881)
         Jump to enable SCC clock.                             JUMPED

       J1200 (pins 1-2 of jumper block along left edge)
         Jump to select 256K boot PROM.                        UNJUMPED

       J1201 (pins 3-4 of jumper block along left edge)
         Jump to select 512K boot PROM.                        JUMPED

       J1700 (single jumper in near right corner)
         Jump to enable 92.94MHz video clock.                  JUMPED

       J2500 (single jumper along left edge)
         Jump for type-1 Ethernet transceiver, unjump for type-2.

       J2501 (pins 3-4 of jumper block in near right corner)
         Jump to enable Ethernet clock.                        JUMPED

       J2502 (single jumper in far left corner, beyond J300)
         Jump to enable P1 system block (VME bus clock).       JUMPED

       J2503 (pins 1-2 of jumper block in near right corner)
         Jump to put +5V on pin 7 of Ethernet connector. May not
         have any pins?

       J2700 (in a jumper block in far left)
         VME BG3 in.                                           UNJUMPED

       J2701 (in a jumper block in far left)
         Bus arbiter/requester.                                JUMPED

       J2702 (in a jumper block in far left)
         VME control buffer reset in.                          UNJUMPED

       J2703 (in a jumper block in far left)
         System reset.                                         JUMPED

       J3100 (3101?) (single jumper in middle right)
         Disable onboard memory.                               UNJUMPED

       Note that J400, J100, J2703, J2701, J2702, and J2700 are all in
       the same block in the far left area, apparently in that order
       from nearest to farthest. On the diagram in the FE manual, there
       are eight jumper pairs, and it is not clear exactly what is
       where.

       Additional features of interest: the boot PROM is in the near
       left, at location U1200. The IDPROM is in the near middle at
       location U1409. The 8530 UARTs are in the middle, nearer than
       the 68881. The Ethernet fuse is by the diag/norm switch at grid
       A6 and the keyboard fuse is by the keyboard connector at grid
       A12.

       Note that when this board is used with a 32-bit data device such
       as an MCP, HSI, ALM-2, SCA, or "Sun-3" SCSI controller, use
       501-1134-06 or later.

       Note that CPU revisions lower than 501-1134-07 Rev 50 may fail
       vid3.diag or video3.exec.

       The power requirements are +5V @ 14.7A, -5V @ 4.1A, and +12V @
       0.15A.

501-1141        2050 CPU VME 1M (2/50)
501-1142        2050 CPU VME 2M (2/50)
501-1143        2050 CPU VME 4M (2/50)
501-1144        2050 CPU VME 1M (2/130/160)
501-1145        2050 CPU VME 2M (2/130/160)
501-1146        2050 CPU VME 4M (2/130/160)
       These boards are apparently all sufficiently identical
       (variations on the 2050 CPU) to be treated as one.

       10MHz 68010, up to 4M on-board DIP memory with 256Kx1 chips.
       VME bus interface.

       From left to right, the back edge of the board has: eight LEDs;
       a female DB15 keyboard/mouse connector; two female DB25 serial
       port connectors (ports A and B from left to right); a female
       DB15 AUI Ethernet connector; and a female DB9 monochrome video
       connector.

       Pin 1 is usually in the upper right corner of all connectors.
       Unconnected pins are not listed.

       The eight LEDs are used for diagnostic purposes. In the chart
       below, a "1" indicates a lit LED, and a "0" indicates an unlit
       LED. Orientation of the LEDs on the board is unknown.

           Pattern     Status                             Problem
           --------    ------                             -------
           00000000    After complete power-up sequence   System running OK
           00000001    Finished self-test, setting up to  Check CPU first,
                        boot                               then expansion brd
           00000010    Entering user watchdog routine     Software bug
           00000011    After local memory verified        CPU
           00000111    After diags, while setting up      CPU
           00001000    Blinks off and on while NMI OK     System running OK
           00010001    Testing context registers          CPU
           00100001    Testing constant data in seg map   CPU
           00100010    Testing addr dependency in seg map CPU
           00100011    Testing data lines in seg map      CPU
           00110001    Testing constant data in page map  CPU
           00110011    Testing data lines in page map     CPU
           00110010    Testing addr dep in page map       CPU
           01000000    Testing PROM contents              CPU or PROMs bad
           01010000    Testing SCC chip(s)                CPU
           01110000    Sizing memory before constant test CPU, then expansion
           01110001    Testing constant data in memory    CPU, then expansion
           01110010    Testing addr dependency in memory  CPU, then expansion
           01111111    Testing parity circuitry           CPU, then expansion
           10000001    Testing timer chip                 CPU
           11110001    Setting up memory after diags      CPU, then expansion
           11110010    Setting up maps after diagnostics  CPU
           11110011    Setting up frame buffer and video  CPU -- check video
                        clock jumper                       jumpers
           11110100    Setting up NMI or keyboard         CPU
           11111111    A reset sets LEDs to this state    CPU or PROMs bad, or
                                                           "bad device"

       The pinout of the keyboard/mouse connector is probably the same
       as for any Sun-3 with a DB15 connector.

       The serial ports appear to conform to both RS-232 and RS-423 and
       are wired DTE. The pinout of the serial ports is:

           2   TxD (transmit data)     8   DCD   (Data Carrier Detect)
           3   RxD (receive data)      15  DB    (transmit clock from DCE)
           4   RTS (Request To Send)   17  DD    (receive clock from DCE)
           5   CTS (Clear To Send)     20  DTR   (Data Terminal Ready)
           6   DSR (Data Set Ready)    24  DA    (transmit clock from DTE)
           7   GND

       The DB, DD, and DA signals are not used with ordinary
       asynchronous equipment such as most modems and terminals,
       printers, etc.).

       Jumpers J200 11-12, J702, and J704 relate to Ethernet. The
       pinout of the AUI Ethernet connector is:

           2   E.COL+              9   E.COL-
           3   E.TxD+              10  E.TxD-
           5   E.RxD+              12  E.RxD-
           6   GND                 13  +12V
           7   VCC

       The monochrome video output levels are ECL/TTL. Jumpers J1600
       1-8 and J1801 relate to video. The pinout of the monochrome
       video connector is:

           1   VIDEO+              6   VIDEO-
           3   HSYNC               7   GND
           4   VSYNC               8   GND
           5   VCC                 9   GND

       There are nine jumper blocks on the board. Coordinates are
       printed at the edges of the board; pin 1 orientations are given
       assuming the connectors nearest you and the component side up.

       J200 at F-9, pin 1 at left end
         1-2   UART clock                                      JUMPED
         3-4   10/12MHz CPU operation                          JUMPED
         5-6   12/10MHz CPU operation                          UNJUMPED
         7-8   reserved                                        UNJUMPED
         9-10  reserved                                        JUMPED
         11-12 Ethernet clock                                  JUMPED
         13-14 memory refresh                                  JUMPED
         15-16 time outs

       J500 at A-16/17, pin 1 toward VME connectors
         1-2   27128 PROMs
         3-4   27256 or 27512 PROMs
         5-6   27128 or 27256 PROMs
         7-8   27512 PROMs

         27128 PROMs: 1-2, 5-6 jumped (for older PROMs)
         27256 PROMs: 3-4, 5-6 jumped
         27512 PROMs: 3-4, 7-8 jumped (for version 1.1.2 PROMs)

       J702 at I/J-4
         Jump to put -5VDC on pin 7 of Ethernet

       J704 at I/J-4
         Jump for type-1 (capacitative coupled) Ethernet transceiver,
         umjump for type-2 (transformer coupled).

       J800 at D-37, pin 1 at left end
         1-2   VME interrupt level 1 (normally jumpered, may be    JUMPED
                 unjumpered on some boards)
         3-4   VME interrupt level 2                           JUMPED
         5-6   VME interrupt level 3                           ?
         7-8   VME interrupt level 4                           ?
         9-10  VME interrupt level 5                           ?
         11-12 VME interrupt level 6                           JUMPED
         13-14 VME interrupt level 7                           JUMPED
         15-16 unused
           Jumpers marked "?" are listed as jumped by default in some
           sources and unjumped by default in others.

       J900 at C-37, pin 1 at left end
         1-2   DVMA addr comparator A20=0/*1                   JUMPED
         3-4   DVMA addr comparator A21=0/*1                   JUMPED
         5-6   DVMA addr comparator A22=0/*1                   JUMPED
         7-8   DVMA addr comparator A23=0/*1                   JUMPED
         9-10  VME arbiter                                     JUMPED
         11-12 VME reset master                                JUMPED
         13-14 VME reset slave                                 UNJUMPED
         15-16 VME system clock                                JUMPED

       J1201 at D-29, pin 1 at left end        Memory type/size
                   1M              2M             3M,4M
                  ----            ----           -------
         1-2       UN              JU              JU
         3-4       UN              UN              JU
         5-6       JU              UN              UN
         7-8       UN              JU              JU
         9-10      JU              UN              UN
         11-12     UN              JU              JU
         13-14     JU              UN              UN
         15-16     UN              JU              JU
           The 1M configuration uses 64Kx1 DIPs occupying positions
           40-57 of rows N-U (note that the coordinate system changes
           in the memory area, in the right corner of the board nearest
           the VME connectors). All other configurations use 256Kx1
           DIPs. The 2M configuration occupies only rows N-Q, the 3M
           configuration presumably occupies rows N-S, and the 4M
           configuration populates all rows. All configurations have
           one bit of parity per byte.

       J1600 at E-17, pin 1 at left end
         1-2   video register sense bit 0, unjumped if display    JUMPED
                size is 1024 x 1024
         3-4   video register sense bit 1, umjumped if a color    JUMPED
                display board is installed (2/130, 2/160 only)
         5-6   video register sense bit 2                      JUMPED
         7-8   video register sense bit 3                      JUMPED
         9-10  reserved
         11-12 reserved
         13-14 10/12MHz CPU operation                          JUMPED
         15-16 12/10MHz CPU operation                          UNJUMPED

       J1801 at L/M-6
         Jump by default to enable 100MHz video clock, unjump
         to disable.

       The ID PROM is at location A19. The missing (?) chips at A/B3-7
       (9518) and E6 (P16R4) were for hardware-assisted DES encryption.

       Power requirements are +5V @ 12A, +12V @ 1A, and -12V @ 0.5A.

501-1162        3/50 motherboard w/o FPU
       See 501-1075.

501-1163        3004 "Carrera" CPU VME 2M (3/75/140/150/160/180)
       See 501-1074.

501-1164        3004 "Carrera" CPU VME 4M (3/75/140/150/160/180)
       See 501-1074.

501-1199        4/1xx CPU VME 8M w/o FPU
       14.28MHz MB86900, Weitek 1164/1165 (if installed), Sun-4 MMU
       with 16 hardware contexts. VME bus interface (although busmaster
       cards are not supported, and there are hints that only 28 bits of
       address are supported). P4 connector for framebuffer.

       From left to right, with the component side up and the connector
       side toward you (normal top edge at the left), the rear edge of
       the board has: a keyboard connector; eight LEDs (bit 0 to the
       right/bottom); a switch to toggle between Normal and Diagnostic
       modes; an Ethernet connector; two serial ports (B and A from
       left to right (top/bottom)); a SCSI connector; and a reset (?)
       button.

       Memory consists of four banks of eight static-column 120ns
       SIMMs, either 256K (501-1314) or 1M (501-1466). Valid memory
       combinations are 8M (all banks 256K), 16M (two banks of 1M), 20M
       (two banks of 1M and two banks of 1M), or 32M (all banks 1M).

           Nearest VME connectors
            _______     _______
           |       |   |       |
           |   3   |   |   4   |             Banks have eight SIMM slots
           | U1516 |   | U1616 |             each.
           |_______|   |_______|   J400

            _______     _______              Note: when using mixed SIMMs
           |       |   |       | J1400       to get 20M, the 1M SIMMs must
           |   1   |   |   2   |             go in banks 2 and 4 or the
           | U1500 |   | U1600 | J1300       machine won't boot.
           |_______|   |_______|

            J101 1-2 (not revelant to memory)
            J100 1-2
                 3-4

       Total memory:           8M      16M     20M     32M
       SIMM size:              256K    1M      256K/1M 1M

       J100    Cache line
         1-2                   JU      UN      JU      UN
         3-4                   UN      JU      UN      JU

       J400    Memory strobe configuration (pin 1 farthest)
         1-2                   UN      JU      UN      JU
         3-4                   JU      UN      UN      JU
         5-6                   JU      JU      JU      UN

       J1300   SIMM addressing mode (pin 1 farthest)
         1-2   same            JU      UN      UN      JU
         3-4   different       UN      JU      JU      UN
         5-6   256K            JU      UN      JU      UN
         7-8   1M              UN      JU      UN      JU
         9-10  2M              UN      UN      UN      UN
         11-12 <32M            JU      JU      JU      UN
         13-14 32M             UN      UN      UN      JU
         15-16 unused          UN      UN      UN      UN

       J1400   SIMM addressing mode (pin 1 farthest)
         1-2   same            JU      UN      UN      JU
         3-4   different       UN      JU      JU      UN
         5-6   256K            JU      UN      UN      UN
         7-8   1M              UN      JU      JU      JU
         9-10  2M              UN      UN      UN      UN
         11-12 <32M            JU      JU      JU      UN
         13-14 32M             UN      UN      UN      JU
         15-16 unused          UN      UN      UN      UN

       There are a variety of other jumper blocks. Locations below are
       given with component side up and connector edge toward you.

       J101 (single jumper, see diagram)
         Jump to enable 57.1MHz clock                          JUMPED

       J600 (block toward far right, pin 1 farthest)
         1-2   27512 boot PROMs                                JUMPED
         3-4   27256 boot PROMs                                UNJUMPED

       J700 (block in center, pin 1 at left)
         1-2   VME interrupt level 1                           JUMPED
         3-4   VME interrupt level 2                           JUMPED
         5-6   VME interrupt level 3                           JUMPED
         7-8   VME interrupt level 4                           JUMPED
         9-10  VME interrupt level 5                           JUMPED
         11-12 VME interrupt level 6                           JUMPED
         13-14 VME interrupt level 7                           JUMPED
         15-16 unused

       J800 (single jumper in near middle)
         Force reset.

       J900 (single jumper toward far right, by battery)
         Short 3V battery. (Erase EEPROM?)                     UNJUMPED

       J1000 (single jumper in middle right)
         Enable UART clock.                                    JUMPED

       J1700 (single jumper toward near right)
         Enable Ethernet clock.                                JUMPED

       J1701 (single jumper in near middle)
         Jump for type-1 Ethernet transceiver, unjump for type-2.

       J1800 (single jumper in near middle)
         Jump for AUI Ethernet, unjump for thin Ethernet/autosense.
         (? -- no BNC connector shown on diagram!)

       J1900 (block in center, pin 1 at left)
         1-2   CPU is VME requester only                       UNJUMPED
         3-4   CPU is VME requester                            JUMPED

       J1901 (block in center, pin 1 at left)
         1-2   CPU is VME reset slave                          UNJUMPED
         3-4   CPU is VME reset master                         JUMPED

       P2101 (single jumper toward far right)
         Jump to enable VME system clock.                      JUMPED

       VJMP2-VJMP9
         Unknown.

       Additional features of interest: the boot PROMs are in the far
       right corner at locations U601-U604 (1651-1654 respectively).
       Nearby, along the right edge, is a 3V battery. The P4 connector
       is in the middle right, by the divider. The IDPROM is nearer, at
       location U805. The keyboard fuse F1000 is near the keyboard
       connector at grid C2 and the Ethernet fuse F1800 is near the
       Ethernet connector at grid F2.

       Note that 501-1199 boards must be 501-1199-11 or later, and
       501-1237 boards 501-1237-11 or later to use a type-4 keyboard.

       Note that the 501-1384 FPU2 is supported only on 501-1512/1513/
       1514/1515/1516/1517.

       Note that for the Ethernet autosense to operate, more than 30mA
       must be present on the +12V return.

       Note that boot ROM version 3.0 or later is required to use the
       P4 cgsix color framebuffer (501-1374/1505/1532) as the console.

       Power requirements (with FPU) are +5V @ 13.8A and -5V @ 0.1A.

501-1205        3/60 motherboard 4M with mono
       20MHz 68020, 20MHz 68881 floating point chip, Sun-3 MMU with
       eight hardware contexts, up to 24M on-board SIMM memory. No bus
       interface, but a P4 connector for a color video board or other
       option -- not the same as the P4 in the 3/80 or any SPARC model.

       From left to right, the back edge of the board has: a female
       DB15 keyboard/mouse connector; eight LEDs (bit 0 to the right);
       a switch to toggle between Normal and Diagnostics modes; a BNC
       thin Ethernet connector; a female DB15 AUI Ethernet connector;
       two female DB25 serial port connectors (ports B and A from left
       to right); a female D50 SCSI port connector; and a female DB9
       monochrome video connector (for those models with a monochrome
       framebuffer). Above these are an upper row of cutouts or
       connectors for color video and other options.

       Pin 1 is usually in the upper right corner of all connectors.
       Unconnected pins are not listed.

       The pinout of the keyboard/mouse connector is:

           1   RxD0 (keyboard)     8   GND
           2   GND                 9   GND
           3   TxD0 (keyboard)     10  VCC
           4   GND                 11  VCC
           5   RxD1 (mouse)        12  VCC
           6   GND                 14  VCC
           7   TxD1 (mouse)        15  VCC

       The eight LEDs are used for diagnostic purposes. In the chart
       below, a "1" indicates a lit LED, and a "0" indicates an unlit
       LED. The pattern is shown right to left, as it appears on the
       LEDs.

           Pattern     Status
           --------    ------
           11111111    Resetting
           00000001    PROM checksum test
           00000011    Context register test
           00000100    Segment map read/write test
           00000101    Segment map address test
           00000110    Page map test
           00000111    Memory path data test
           00001000    Nonexistent memory bus error test
           00001001    Interrupt test
           00001010    Time-Of-Day clock interrupt test
           00001011    MMU protection/status tests
           00001110    Parity error test #1
           00001111    Parity error test #2
           00010000    Memory test
           10000000    Self-tests have found an error
           01000000    An exception class error occurred

       "Marching ones" (cycling through 10000000, 01000000, 00100000,
       etc.) indicates that Unix is running OK. On power up, it cycles
       through the tests in the chart above, then boots Unix. If LED 7
       (10000000) lights up while the tests are being performed, it
       indicates that the test failed. If LED 6 (01000000) lights up
       with the tests are being performed, it indicates that an
       unexpected error (bus error, address error, unexpected
       interrupt, etc.) occurred during the test. When all tests are
       finished, LED 5 (00100000) starts blinking to indicate that the
       ROM monitor is running and/or Unix is booting.

       If you want the machine to boot normally, set the diagnostics
       switch to "NORM". If you want extended diagnostics when you
       power up the system, set the switch to the "DIAG" position. If
       the switch is set to "DIAG", power-on self-test messages are
       sent to serial port A at 9600 bps, 8 data bits, one stop bit, no
       parity, and XON/XOFF flow control.

       Whether the BNC or AUI Ethernet connector is use is controller
       by part of J800. The pinout of the AUI Ethernet connector is:

           1   chassis ground      7   VCC
           2   E.COL+              9   E.COL-
           3   E.TxD+              10  E.TxD-
           4   chassis ground      12  E.RxD-
           5   E.RxD+              13  +12V
           6   GND

       The serial ports conform to both RS-232-C and RS-423 and are
       wired DTE. The pinout of the serial ports is:

           2   TxD (transmit data)     8   DCD   (Data Carrier Detect)
           3   RxD (receive data)      15  DB    (transmit clock from DCE)
           4   RTS (Request To Send)   17  DD    (receive clock from DCE)
           5   CTS (Clear To Send)     20  DTR   (Data Terminal Ready)
           6   DSR (Data Set Ready)    24  DA    (transmit clock from DTE)
           7   GND                     25  VERR  (-5V)

       The DB, DD, and DA signals are not used with ordinary
       asynchronous equipment such as most modems and terminals,
       printers, etc.).

       The pinout of the SCSI connector is:

           1   GND         17  GND         34  GND
           2   data bus 0  18  data parity 35  GND
           3   GND         19  GND         36  busy
           4   data bus 1  20  GND         37  GND
           5   GND         21  GND         38  acknowledge
           6   data bus 2  22  GND         39  GND
           7   GND         23  GND         40  reset
           8   data bus 3  24  GND         41  GND
           9   GND         25  GND???      42  message
           10  data bus 4  26  TERMPWR     43  GND
           11  GND         27  GND         44  select
           12  data bus 5  28  GND         45  GND
           13  GND         29  GND         46  command/data
           14  data bus 6  30  GND         47  GND
           15  GND         31  GND         48  request
           16  data bus 7  32  attention   49  GND
                           33  GND         50  input/output

       and the pattern of the pins is:

           49    46    43  ....  19    16    13    10    7    4    1
              48    45    42  ....  18    15    12    9    6    3
           50    47    44    41  ....  17    14    11    8    5    2

       Note that pin 26 (TERMPWR) is connected to ground on part
       numbers 501-1205-09 or lower, 501-1322-01, 501-1334-01, and
       501-1345-01. This can cause a short if another device in the
       chain is providing termination power!

       The monochrome video output levels are ECL/TTL. The output can
       be switched between low resolution (1152 x 900 61.8KHz
       horizontal sync, 66Hz vertical sync) and high resolution (1600 x
       1280) via a jumper in J800. The pinout of the monochrome video
       connector is:

           1   VIDEO+              6   VIDEO-
           3   HSYNC               7   GND
           4   VSYNC               8   GND
                                   9   GND

       Memory is in the form of up to 24 1Mx9 SIMMs, rated 100ns or
       faster, installed in groups of four starting with the SIMM slots
       nearest the back of the motherboard and moving forward. These
       SIMMs are part number 501-1239 and are the same kind used in IBM
       PC clones. Note that some users have experienced problems with
       three-chip SIMMs (as opposed to nine-chip SIMMs) -- see Misc Q&A
       #17. The amount of memory seen is controlled by part of J800.

       There is one jumper block and various points of interest. All
       locations are given with component side up and connector side
       toward you.

       J800 (toward far left corner, pin 1 at left)
        1-2    jump for 4M RAM or more installed
        3-4    jump for 8M RAM or more installed
        5-6             12M
        7-8             16M
        9-10            20M
        11-12           24M
        13-14  jump for AUI Ethernet, unjump for thin
                Ethernet/autoselect
        15-16  jump for high resolution video, unjump for normal
                resolution/autoselect. Note that the video cable must
                be 530-1539 or 530-1336 and the monitor must be
                540-1427 Motorola revision T or later for autoselect to
                operate.

       Additional features of interest: the Ethernet fuse is in the far
       left corner by the 3V battery, at grid J39. The IDPROM is at
       location U224 (grid I20) in the leftish middle. The boot PROM is
       at location U300 (grid K8) on the left side in the middle. The
       8530 UARTs are also on the left side, toward the near end from
       the boot PROM. The keyboard fuse is in the near left corner by
       the keyboard connector at grid K1. The P4A and P4B connectors
       are on the right side on either side of the middle bar.

       Note that boot PROM version 1.6 is required to boot from a
       QIC-24 tape. Boot ROM version 3.0 or later is required to use
       the P4 cgsix color framebuffer (501-1374/1505/1532) as the
       console.

       Power requirements are +5V @ 11/13.5A typical/max, -5.2V @
       0.3/0.5A typical/max, and +12V @ 0.3/0.5A typical/max. (The FE
       manual lists +5V @ 10.1A for models with framebuffers and 8.9A
       without, -5V @ 0.7A for models with framebuffers and 0.3A
       without, and doesn't list +12V at all.)

501-1206        3/2xx CPU VME
       See 501-1100.

501-1207        3/50 motherboard with FPU
       Same as 501-1075 except the 68881 is factory-installed.

501-1208        3004 "Carrera" CPU VME 4M (3/75/140/150/160/180)
       16.67MHz 68020, 68881, Sun-3 MMU with eight hardware contexts,
       4M of onboard memory. VME bus interface.

       From left to right with component side up and connector edge
       toward you (normal top edge at left), the rear edge has: a
       female DB15 AUI Ethernet connector; eight LEDs (bit 0 to the
       top/left); a switch to toggle between Normal and Diagnostics
       modes; a reset switch; a female DB9 monochrome video connector;
       a female DB15 keyboard/mouse connector; and two female DB25
       serial port connectors (ports A and B from left to right
       (top/bottom)).

       Pin 1 is usually in the upper right corner of all connectors.
       Unconnected pins are not listed.

       Jumpers J2501 and J2503 relate to Ethernet. The pinout of
       the AUI Ethernet connector is:

           2   E.COL+              9   E.COL-
           3   E.TxD+              10  E.TxD-
           5   E.RxD+              12  E.RxD-
           6   GND                 13  +12V

       The eight LEDs are used for diagnostic purposes.

       If you want the machine to boot normally, set the diagnostics
       switch to "NORM" (labelled "BOOT" on some early versions). If
       you want extended diagnostics when you power up the system, set
       the switch to the "DIAG" position. If the switch is set to
       "DIAG", power-on self-test messages are sent to serial port A.

       The user reset button invokes a watchdog reset. The result
       depends on the value at address 0x17 of the EEPROM. (?)

       The monochrome video output levels are ECL/TTL, with a
       resolution of 1152 x 900 at 61.8KHz horizontal sync and 66Hz
       vertical sync. The pinout of the monochrome video connector is:

           1   VIDEO+              6   VIDEO-
           3   HSYNC               7   GND
           4   VSYNC               8   GND
                                   9   GND

       The pinout of the keyboard/mouse connector is:

           1   RxD0 (keyboard)     8   GND
           2   GND                 9   GND
           3   TxD0 (keyboard)     10  VCC
           4   GND                 11  VCC
           5   RxD1 (mouse)        12  VCC
           6   GND                 14  VCC
           7   TxD1 (mouse)        15  VCC

       The serial ports conform to both RS-232-C and RS-423 and are
       wired DTE. The documented maximum speeds are 19200 bps for
       output and 9600 bps for input. The pinout of the serial ports
       is:

           2   TxD (transmit data)     8   DCD   (Data Carrier Detect)
           3   RxD (receive data)      15  DB    (transmit clock from DCE)
           4   RTS (Request To Send)   17  DD    (receive clock from DCE)
           5   CTS (Clear To Send)     20  DTR   (Data Terminal Ready)
           6   DSR (Data Set Ready)    24  DA    (transmit clock from DTE)
           7   GND                     25  VERR  (-5V)

       The DB, DD, and DA signals are not used with ordinary
       asynchronous equipment such as most modems and terminals,
       printers, etc.).

       There are a variety of jumper blocks, many of which (oddly) have
       separate designations for each pair of pins. Locations below are
       given with component side up and connector edge toward you.

       J100 (pins 5-6 of a block on the left side, beyond the 68881)
         "Cache disable".                                      UNJUMPED

       J300 (block in far left corner, pin 1 nearest)
         1-2   unused
         3-4   VME interrupt level 1                           JUMPED
         5-6   VME interrupt level 2                           JUMPED
         7-8   VME interrupt level 3                           JUMPED
         9-10  VME interrupt level 4                           JUMPED
         11-12 VME interrupt level 5                           JUMPED
         13-14 VME interrupt level 6                           JUMPED
         15-16 VME interrupt level 7                           JUMPED

       J400 (block toward far left corner, pin 1 nearest)
         1-2   16.67MHz CPU clock                              JUMPED
         3-4   12.5MHz CPU clock                               UNJUMPED
         5-6   12.5MHz FPU clock                               UNJUMPED
         7-8   16.67MHz FPU clock                              JUMPED

       J1001 (single jumper in middle right)
         Jump to enable SCC clock.                             JUMPED

       J1200 (pins 4-5 of block in near left corner)
         Jump for 27256 boot PROMs.                            UNJUMPED

       J1201 (pins 5-6 of block in near left corner)
         Jump for 27512 boot PROMs.                            JUMPED

       J2301 (single jumper in near middle, to right of divider)
         Jump to enable video clock.                           JUMPED

       J2501 (pins 1-2 of block in near left)
         Jump to enable Ethernet clock.                        JUMPED

       J2502 (pins 1-2 of block in near left corner)
         Jump to enable VME clock.                             JUMPED

       J2503 (pins 3-4 of block in near left)
         Jump for a type-1 Ethernet transceiver, unjump for a type-2.

       J2505 (pins 7-8 of a block on the left side, beyond the 68881)
         Unused.

       J2700-J2703 (block in far left, pin 1 nearest)
         1-2   J2703, jump to enable VME reset master          JUMPED
         3-4   J2702, jump to enable VME reset slave           UNJUMPED
         5-6   J2701, jump to enable VME request/arbiter       JUMPED
         7-8   J2700, jump to enable VME request only          UNJUMPED

       J3101 (pins 1-2 of block on the left side, beyond the 68881)
         Jump for 2M CPU.                                      JUMPED

       J3102 (pins 3-4 of block on the left side, beyond the 68881)
         Jump for 4M CPU.                                      JUMPED

       Additional features of interest: the boot PROM is on the near
       left side at location U1200 (grid C5). The IDPROM is
       catty-corner from the boot PROM at location U1409 (grid B10).
       The keyboard fuse is by the reset switch at grid A16. The
       Ethernet fuse is by the boot PROM at grid C8.

       Note that boot PROM version 1.8 is required to boot from a
       QIC-24 tape. Boot PROM version 2.6 is required to boot from a
       QIC-24 tape in a Sun-2 shoebox. Boot PROM version 2.6 is also
       required to boot from an SMD disk attached to a Xylogics 7053
       SMD controller.

       Note that CPU revisions 501-1208-04 and lower may fail with
       non-Sun boards. Use 501-1208-05 or greater.

       Power requirements are +5V @ 14.6A, -5V @ 0.8A.

501-1209        3/110 CPU VME
       See 501-1134.

501-1237        4/1xx CPU VME 8M with FPU
       See 501-1199.

501-1241        386i/150 motherboard
       20MHz 80386 and 80387, 80386 on-board MMU. Four 32-bit
       proprietary slots, four ISA bus slots (three 16-bit/AT, one
       8-bit/XT).

       From left to right, with component side up and connectors AWAY
       from you, the connector edge has: a male DB25 serial connector;
       a parallel port connector; eight LEDs (bit 0 to the left); and a
       female DB15 AUI Ethernet connector.

       There is a set of three jumpers near to 80387 in the near right,
       with jumper 0 farthest away:

               0       1       2        mode
              ----    ----    ----     --------------------------------
               UN      UN      UN      Normal. Self-test is executed.
                                        Memory tested is determined by
                                        the NVRAM setting.
               JU      UN      UN      Diagnostic. Self-test is
                                        executed. All memory is tested.
                                        Status sent to the serial port
                                        until all video hardware tests
                                        OK.
               UN      UN      JU      Manufacturing. Diagnostic mode
                                        continuous loop.
               JU      UN      JU      Bypass. Bypasses most of normal
                                        self-test.

       Additional features of interest: in the far left beyond the ISA
       slots are five voltage test points (+5, GND, +12, -12, and -5
       from left to right). In the far center are the boot PROM at
       location U602, the time-of-day/NVRAM chip at U603, and the
       IDPROM at U601. Next to the IDPROM is the SCSI connector, with
       pin 1 in the far left. In line but nearer is the floppy
       data/control connector, with pin 1 in the near right. The power
       supply connector is along the right edge just beyond the jag in
       the edge. Along the jag is the floppy/disk power connector (four
       pins, pin 1 at right), and somewhat nearer are the fan power
       connector (two pins, pin 1 at left) and the front panel LED
       power connector (three pins, pin 1 farthest). In the near left
       corner is the speaker connector (three pins, pin 1 farthest).
       The Ethernet fuse is near the serial and parallel connectors,
       and the SCSI fuse is near the SCSI connector. Both fuses are 1A
       subminiature fuses, P/N 140-1027.

       Note that boot PROM version 4.3 or later is required to use the
       GXi color framebuffer 501-1352. Boot PROM version 4.4 or later
       is required to use monochrome framebuffer 501-1433/1568.

       Note that 501-1241-02 Rev 03 or later is required to use dynamic
       memory boards 501-1394, 501-1441, or 501-1423 (555-1423).
       501-1241-04 Rev 01 or later is required to use multiple dynamic
       memory boards.

       Note that the Ethernet is permanently set for type-2
       (transformer-coupled) transceivers.

       Power requirements are +5V @ 5.8A.

501-1274        4/2xx CPU VME with FPC-6/4
       16.67MHz SF9010, Weitek 1164/1165, Sun-4 MMU with 16 hardware
       contexts. VME bus interface.

       From left to right, with component side up and connector edge
       toward you (normal top edge at left), the rear edge of the board
       has: two serial ports (A and B from left to right (top/bottom));
       an Ethernet connector; a switch to toggle between Normal and
       Diagnostic modes; eight LEDs (bit 0 to the right/bottom); a
       reset button; a keyboard connector; and a video connector.

       The video output is high-resolution ECL/TTL monochrome at 1600 x
       1280, with 89KHz horizontal sync and 66Hz vertical sync.

       There are a variety of jumper blocks, many of which (oddly) have
       separate designations for each pair of pins. Locations below are
       given with component side up and connector edge toward you.

       J0301 (one pair in block in leftish center, by U2004 PROM)
         "External clock clock."                               UNJUMPED

       J0302 (one pair in block in leftish center, by U2004 PROM)
         46.153MHz clock enable.                               JUMPED

       J0303 (one pair in block in leftish center, by U2004 PROM)
         16MHz clock enable.                                   JUMPED

       J0304 (single jumper in leftish center, by U2003 PROM)
         VME clock enable.                                     JUMPED

       J0401 (block in far left)
         1-2   unused
         3-4   VME interrupt level 1                           JUMPED
         5-6   VME interrupt level 2                           JUMPED
         7-8   VME interrupt level 3                           JUMPED
         9-10  VME interrupt level 4                           JUMPED
         11-12 VME interrupt level 5                           JUMPED
         13-14 VME interrupt level 6                           JUMPED
         15-16 VME interrupt level 7                           JUMPED

       J2001 (farthest pair in block in far left, by U2001 PROM)
         Select 27512 PROMs.                                   JUMPED

       J2002 (middle pair in block in far left, by U2001 PROM)
         Select 27256 PROMs.                                   UNJUMPED

       J2003 (single jumper in near left)
         Connect 3V battery.                                   JUMPED

       J2201 (single jumper in near left, by battery)
         SCC (UART) clock enable.                              JUMPED

       J2401 (nearest pair in block in far left, by U2001 PROM)
         CPU is VME requester only                             UNJUMPED

       J2402 (rightmost pair in block in far center)
         CPU is arbiter/requester                              JUMPED

       J2403 (middle pair in block in far center)
         CPU is reset slave                                    UNJUMPED

       J2404 (leftmost pair in block in far center)
         CPU is reset master                                   JUMPED

       J2701 (single jumper in near middle, by LEDs)
         Debug jumper.                                         UNJUMPED

       J2801 (single jumper in far left)
         Enable system DVMA.                                   JUMPED

       J2902 (single jumper in leftish nearish middle)
         Jump for type-1 Ethernet transceiver, unjump for type-2.

       J2904 (location unknown, does not appear on diagram)
         "Null."                                               UNJUMPED

       Additional features of interest: the four boot PROMs form a line
       in the middle of the left half of the board, U2001-U2004
       (1507-1504, farthest to nearest, respectively). The IDPROM is
       near the U2004 PROM, at location U1901. The 3V battery is along
       the near edge near serial port B. The Ethernet fuse is in the
       near right, near the Weitek chips, at grid C29. The keyboard
       fuse is near the keyboard connector at grid A26.

       Note that 501-1274 boards must be 501-1274-12 or later to use a
       type-4 keyboard. Also, they must be 501-1274-13 or later to use
       a Xylogics 7053 SMD disk controller.

       The boot PROM version must be 1.7 or later to boot from an SMD
       disk connected to a Xylogics 7053 SMD disk controller. Also, the
       boot PROM version must be 3.0 or later when more than two
       501-1576 16M memory boards are used.

       Power requirements are +5V @ 17.2A, -5V @ 1.3A, and +12V @ 0.4A.

501-1299        3/4xx CPU VME
       33MHz 68030 and 68882, 68030 on-board MMU. VME bus interface.

       From left to right, with component side up and connector edge
       toward you (normal top edge at left), the rear edge of the board
       has: eight LEDs (bit 0 at the top/left); a reset button; a
       switch to toggle between Normal and Diagnostic modes; a female
       DB15 AUI Ethernet connector; two female DB25 serial ports (A and
       B from left to right (top/bottom)); and a female DB15
       keyboard/mouse connector.

       The user reset button invokes a watchdog reset. The result
       depends on the value at address 0x17 of the EEPROM. (?)

       If you want the machine to boot normally, set the diagnostics
       switch to "NORM". If you want extended diagnostics when you
       power up the system, set the switch to the "DIAG" position. If
       the switch is set to "DIAG", power-on self-test messages are
       sent to serial port A at 9600 bps or serial port B at 1200 bps.

       Jumper J2501 affects Ethernet. The pinout of the AUI Ethernet
       connector is:

           1   chassis ground      6   GND
           2   E.COL+              9   E.COL-
           3   E.TxD+              10  E.TxD-
           4   chassis ground      12  E.RxD-
           5   E.RxD+              13  +12V

       The serial ports conform to both RS-232-C and RS-423 and are
       wired DTE. The pinout of the serial ports is:

           2   TxD (transmit data)     8   DCD   (Data Carrier Detect)
           3   RxD (receive data)      15  DB    (transmit clock from DCE)
           4   RTS (Request To Send)   17  DD    (receive clock from DCE)
           5   CTS (Clear To Send)     20  DTR   (Data Terminal Ready)
           6   DSR (Data Set Ready)    24  DA    (transmit clock from DTE)
           7   GND                     25  -5V

       The pinout of the keyboard/mouse connector is:

           1   RxD0 (keyboard)     8   GND
           2   GND                 9   GND
           3   TxD0 (keyboard)     10  VCC
           4   GND                 11  VCC
           5   RxD1 (mouse)        12  VCC
           6   GND                 14  VCC
           7   TxD1 (mouse)        15  VCC

       There are a variety of jumper blocks. Locations below are given
       with component side up and connector edge toward you.

       J100 (block along right edge toward far end)
        1-2    Enable 68030 cache                              UNJUMPED
        3-4    Enable 68030 MMU                                UNJUMPED

       J200 (block in middle just to left of divider, pin 1 nearest)
        1-2    Enable 68030 clock                              JUMPED
        3-4    unused
        5-6    unused
        7-8    Enable 50ns clock                               JUMPED

       J400 (block in middle right, pin 1 to left)
        1-2    Enable VME interrupt 1                          JUMPED
        3-4    Enable VME interrupt 2                          JUMPED
        5-6    Enable VME interrupt 3                          JUMPED
        7-8    Enable VME interrupt 4                          JUMPED
        9-10   Enable VME interrupt 5                          JUMPED
        11-12  Enable VME interrupt 6                          JUMPED
        13-14  Enable VME interrupt 7                          JUMPED
        15-16  unused

       J2000 (block in far middle, pin 1 nearest)
        1-2    Enable VME requester                            UNJUMPED
        3-4    Enable VME arbiter                              JUMPED
        5-6    VME-generated VME reset                         UNJUMPED
        7-8    CPU-generated VME reset                         JUMPED

       J2100 (block in far middle, by battery, pin 1 nearest)
        1-2    Enable VME system clock                         JUMPED
        3-4    Enable round-robin arbiter                      JUMPED

       J2501 (block in near middle, pin 1 to left)
        1-2    Enable Ethernet clock                           JUMPED
        3-4    unused
        5-6    Jump to select type-1 Ethernet transceiver, unjump for
                type-2
        7-8    unused

       Additional features of interest: the IDPROM is in the near right
       at location U1701 (grid D33). The boot PROMs are at locations
       U1712 and U1713 (grid B34 and C34). The 3V battery is in the far
       middle. The P4 connector is in the middle right. The Ethernet
       fuse F2500 is by the Ethernet connector and the keyboard fuse
       F1800 is near serial port A. There is a terminator resistor pack
       at U1411.

       Note that if memory boards are installed on both sides of the
       CPU, the terminator pack at U1411 should be removed.

       Note that any 501-1102 8M memory boards used with this CPU must
       be 501-1102-11 or later. Additionally, the similar 501-1254 32M
       memory boards are not compatible.

       Note that this board can use P4 cgeight framebuffer 501-1371-04
       or later only.

       Note that jumpers P10, P11, P12, and P13 should be removed from
       the 501-1598 and 501-1832 backplanes when this CPU is installed.

       The CPU must be 501-1550-10 or later to work with the SunLink
       Channel Adapter.

       Power requirements are +5V @ 24.5A and +12V @ 0.3A.

501-1316        4/3xx CPU VME 8M
       25MHz CY7C601, TI8847, Sun-4 MMU with 16 hardware contexts. VME
       bus interface. P4 connector.

       From left to right, with component side up and connector edge
       toward you (normal top edge at left), the rear edge of the board
       has: a SCSI-2 connector; an Ethernet connector; four serial
       ports (D, C, B, and A from left to right (top/bottom)), of which
       A seems to be DB25 and B-D DB9; a keyboard connector; eight LEDs
       (bit 0 to the left/top); and a switch to toggle between
       Diagnostic and Normal modes.

       There are a variety of jumper blocks. Locations below are given
       with component side up and connector edge toward you.

       J0200 (block in near middle, pin 1 to left)
         1-2   FPC normally low                                JUMPED
         3-4   FPC normally low                                JUMPED
         5-6   FPC normally high                               UNJUMPED

       J0900 (single jumper in center, by crystal)
         Jump to enable sysclock.                              JUMPED

       J1900 (single jumper in farish center, near SIMMs)
         Jump for 4M SIMMs, unjump for 1M SIMMs.

       J2100 (single jumper in nearish left, near PROMs)
         Jump for 27512 PROMs.                                 JUMPED

       J2100 (single jumper in nearish left, near PROMs)
         Jump for 27256 PROMs.                                 UNJUMPED

       J2302 (three-pin jumper in near middle, pin 1 to left)
         1-2   Ports A/B RS-232 (+12V)                         JUMPED
         2-3   Ports A/B RS-423 (+5V)                          UNJUMPED

       J2303 (three-pin jumper in near middle, pin 1 to left)
         1-2   Ports A/B RS-232 (-12V)                         JUMPED
         2-3   Ports A/B RS-423 (-5V)                          UNJUMPED

       J2400 (single jumper in near right)
         Jump to enable serial port clock.                     JUMPED

       J2402 (three-pin jumper in near right corner)
         1-2   Mouse TD enabled                                UNJUMPED
         2-3   Mouse TD grounded                               JUMPED

       J2502 (three-pin jumper in near middle, pin 1 to left)
         1-2   Ports C/D RS-232 (+12V)                         JUMPED
         2-3   Ports C/D RS-423 (+5V)                          UNJUMPED

       J2503 (three-pin jumper in near middle, pin 1 to left)
         1-2   Ports C/D RS-232 (-12V)                         JUMPED
         2-3   Ports C/D RS-232 (-5V)                          UNJUMPED

       J2701 (single jumper in far left corner)
         "Disable VME loopback."                               UNJUMPED

       J2800 (single jumper in far left corner)
         Enable VME reset out                                  JUMPED

       J2801 (single jumper in far left)
         Enable VME arbiter                                    JUMPED

       J2803 (single jumper in far left corner)
         Enable VME reset in                                   UNJUMPED

       J2900 (single jumper in far left corner)
         Enable 16MHz VME clock                                JUMPED

       J3001 (block in far left)
         1-2   unused
         3-4   Enable VME interrupt level 1                    JUMPED
         5-6   Enable VME interrupt level 2                    JUMPED
         7-8   Enable VME interrupt level 3                    JUMPED
         9-10  Enable VME interrupt level 4                    JUMPED
         11-12 Enable VME interrupt level 5                    JUMPED
         13-14 Enable VME interrupt level 6                    JUMPED
         15-16 Enable VME interrupt level 7                    JUMPED

       J3100 (single jumper in middlish left edge)
         Jump to enable 32MHz clock.                           JUMPED

       J3101 (single jumper in far left edge)
         Jump to enable 48MHz clock.                           JUMPED

       Memory is in the form of up to eight 1M or 4M x 9 30-pin SIMMs
       in two banks in the far right, U1300-U1307 from nearest to
       farthest. The nearer four are bank 0, bytes 0-3, and the farther
       four are bank 1, bytes 0-3. Nearby jumper J1900 controls whether
       the SIMMs are 1M or 4M. The 1M SIMMs are 501-1408, 501-1466
       (same as 4/1xx), 501-1544, 501-1565, and 501-1697. The 4M SIMMs
       are 501-1682 and 501-1739. 4M SIMMs are "not supported on the
       Sun-4/330 CPU" and require boot PROM version 3.0.3 or later.

       Additional features of interest: the boot PROMs are in a group
       in the near left, with U2101, U2103, U2102, and U2100 in that
       order clockwise from the far left. The IDPROM is in the near
       right corner at location U2202. The time-of-day/NVRAM chip is in
       the middle of the left edge, at location U2200. There is a large
       jumper bock J2000 in the far left (internal SCSI connector?).
       The P4 connector is by the SIMMs, just nearer. The SCSI fuse
       F3200 and Ethernet fuse F3100 are by the SCSI and Ethernet
       connectors respectively. The keyboard fuse F0300 is by the LEDs.
       All three fuses are 150-1174, 2A.

       Note that the CPU is permanently set for type-2 Ethernet
       transceivers.

       Note that 501-1316-04 and later is required to use the ISP-80 or
       FDDI controllers, and to run LISP software. Also, 501-1316-03 or
       later is required to use the cg5 framebuffer.

       Note that boot PROM version 3.0 or later is required to boot
       from the 60M quarter-inch tape drive in the Mass Storage
       Subsystem. Boot PROM version 3.0.1 or later is required to boot
       from a tape drive on a secpmd SCSI controller. Boot PROM version
       3.0.3 or later is required to use 4M SIMMs. Boot PROM version
       4.1.1 or later is required when the 501-1537(1538) VX(MVX)
       Visualization Accelerator is used as the console.

       To provide circuit protection to the M+ and M- (+-12V) inputs on
       the UC5170 serial port liner driver, install fused shunts
       150-1669 at locations J2302, J2303, J2502, and J2503.

       Power requirements are +5V @ 17.5A, +12V @ 0.2A, and -12V @
       0.2A.

501-1322        3/60 motherboard 4M w/o mono
       See 501-1205.

501-1324        386i/250 motherboard
       25MHz 80386 and 80387, 80386 on-board MMU. Four 32-bit
       proprietary slots, four ISA bus slots (three 16-bit/AT, one
       8-bit/XT).

       From left to right, with component side up and connectors AWAY
       from you, the connector edge has: a male DB25 serial connector;
       a parallel port connector; eight LEDs (bit 0 to the left); and a
       female DB15 AUI Ethernet connector.

       There is a set of three jumpers near to 80387 in the near right,
       with jumper 0 farthest away:

               0       1       2        mode
              ----    ----    ----     --------------------------------
               UN      UN      UN      Normal. Self-test is executed.
                                        Memory tested is determined by
                                        the NVRAM setting.
               JU      UN      UN      Diagnostic. Self-test is
                                        executed. All memory is tested.
                                        Status sent to the serial port
                                        until all video hardware tests
                                        OK.
               UN      UN      JU      Manufacturing. Diagnostic mode
                                        continuous loop.
               JU      UN      JU      Bypass. Bypasses most of normal
                                        self-test.

       Additional features of interest: in the far left beyond the ISA
       slots are five voltage test points (+5, GND, +12, -12, and -5
       from left to right). In the far center are the boot PROM at
       location U602, the time-of-day/NVRAM chip at U603, and the
       IDPROM at U601. Next to the IDPROM is the SCSI connector, with
       pin 1 in the far left. In line but nearer is the floppy
       data/control connector, with pin 1 in the near right. The power
       supply connector is along the right edge just beyond the jag in
       the edge. Along the jag is the floppy/disk power connector (four
       pins, pin 1 at right), and somewhat nearer are the fan power
       connector (two pins, pin 1 at left) and the front panel LED
       power connector (three pins, pin 1 farthest). In the near left
       corner is the speaker connector (three pins, pin 1 farthest).
       The Ethernet fuse is near the serial and parallel connectors,
       and the SCSI fuse is near the SCSI connector. Both fuses are 1A
       subminiature fuses, P/N 140-1027.

       Note that boot PROM version 4.3 or later is required to use the
       GXi color framebuffer 501-1352. Boot PROM version 4.4 or later
       is required to use monochrome framebuffer 501-1433/1568.

       Note that the Ethernet is permanently set for type-2
       (transformer-coupled) transceivers.

       Power requirements are +5V @ 5.8A.

501-1334        3/60 motherboard 0M with mono
       See 501-1205.

501-1345        3/60 motherboard 0M w/o mono
       See 501-1205.

501-1378        3/60LE motherboard
       20MHz 68020, 20MHz 68881 floating point chip, Sun-3 MMU with
       eight hardware contexts, up to 12M on-board SIMM memory. No bus
       interface, but a P4 connector for a color video board or other
       option -- not the same as the P4 in the 3/80 or any SPARC model.

       From left to right, the back edge of the board has: a female
       DB15 keyboard/mouse connector; eight LEDs (bit 0 to the right);
       a switch to toggle between Normal and Diagnostics modes; a BNC
       thin Ethernet connector; a female DB15 AUI Ethernet connector;
       two female DB25 serial port connectors (ports B and A from left
       to right); and a female D50 SCSI port connector. Above these are
       an upper row of cutouts or connectors for color video and other
       options.

       Pin 1 is usually in the upper right corner of all connectors.
       Unconnected pins are not listed.

       The pinout of the keyboard/mouse connector is:

           1   RxD0 (keyboard)     8   GND
           2   GND                 9   GND
           3   TxD0 (keyboard)     10  VCC
           4   GND                 11  VCC
           5   RxD1 (mouse)        12  VCC
           6   GND                 14  VCC
           7   TxD1 (mouse)        15  VCC

       The eight LEDs are used for diagnostic purposes. In the chart
       below, a "1" indicates a lit LED, and a "0" indicates an unlit
       LED. The pattern is shown right to left, as it appears on the
       LEDs.

           Pattern     Status
           --------    ------
           11111111    Resetting
           00000001    PROM checksum test
           00000011    Context register test
           00000100    Segment map read/write test
           00000101    Segment map address test
           00000110    Page map test
           00000111    Memory path data test
           00001000    Nonexistent memory bus error test
           00001001    Interrupt test
           00001010    Time-Of-Day clock interrupt test
           00001011    MMU protection/status tests
           00001110    Parity error test #1
           00001111    Parity error test #2
           00010000    Memory test
           10000000    Self-tests have found an error
           01000000    An exception class error occurred

       "Marching ones" (cycling through 10000000, 01000000, 00100000,
       etc.) indicates that Unix is running OK. On power up, it cycles
       through the tests in the chart above, then boots Unix. If LED 7
       (10000000) lights up while the tests are being performed, it
       indicates that the test failed. If LED 6 (01000000) lights up
       with the tests are being performed, it indicates that an
       unexpected error (bus error, address error, unexpected
       interrupt, etc.) occurred during the test. When all tests are
       finished, LED 5 (00100000) starts blinking to indicate that the
       ROM monitor is running and/or Unix is booting.

       If you want the machine to boot normally, set the diagnostics
       switch to "NORM". If you want extended diagnostics when you
       power up the system, set the switch to the "DIAG" position. If
       the switch is set to "DIAG", power-on self-test messages are
       sent to serial port A at 9600 bps, 8 data bits, one stop bit, no
       parity, and XON/XOFF flow control.

       Whether the BNC or AUI Ethernet connector is use is controller
       by part of J800. The pinout of the AUI Ethernet connector is:

           1   chassis ground      7   VCC
           2   E.COL+              9   E.COL-
           3   E.TxD+              10  E.TxD-
           4   chassis ground      12  E.RxD-
           5   E.RxD+              13  +12V
           6   GND

       The serial ports conform to both RS-232-C and RS-423 and are
       wired DTE. The pinout of the serial ports is:

           2   TxD (transmit data)     8   DCD   (Data Carrier Detect)
           3   RxD (receive data)      15  DB    (transmit clock from DCE)
           4   RTS (Request To Send)   17  DD    (receive clock from DCE)
           5   CTS (Clear To Send)     20  DTR   (Data Terminal Ready)
           6   DSR (Data Set Ready)    24  DA    (transmit clock from DTE)
           7   GND                     25  VERR  (-5V)

       The DB, DD, and DA signals are not used with ordinary
       asynchronous equipment such as most modems and terminals,
       printers, etc.).

       The pinout of the SCSI connector is:

           1   GND         17  GND         34  GND
           2   data bus 0  18  data parity 35  GND
           3   GND         19  GND         36  busy
           4   data bus 1  20  GND         37  GND
           5   GND         21  GND         38  acknowledge
           6   data bus 2  22  GND         39  GND
           7   GND         23  GND         40  reset
           8   data bus 3  24  GND         41  GND
           9   GND         25  GND???      42  message
           10  data bus 4  26  TERMPWR     43  GND
           11  GND         27  GND         44  select
           12  data bus 5  28  GND         45  GND
           13  GND         29  GND         46  command/data
           14  data bus 6  30  GND         47  GND
           15  GND         31  GND         48  request
           16  data bus 7  32  attention   49  GND
                           33  GND         50  input/output

       and the pattern of the pins is:

           49    46    43  ....  19    16    13    10    7    4    1
              48    45    42  ....  18    15    12    9    6    3
           50    47    44    41  ....  17    14    11    8    5    2

       Memory is in the form of up to 16 256K SIMMs (501-1349),
       installed in groups of four starting with the SIMM slots nearest
       the back of the motherboard and moving forward, followed by up
       to 8 1M SIMMs (501-1346). The amount of memory seen is
       controlled by part of J800.

       There is one jumper block and various points of interest. All
       locations are given with component side up and connector side
       toward you.

       J800 (toward far left corner, pin 1 at left)
        1-2    jump for 8M RAM (or less?) installed
        3-4    jump for more than 8M RAM installed
        5-6    unused
        7-8    unused
        9-10   unused
        11-12  unused
        13-14  jump for AUI Ethernet, unjump for thin
                Ethernet/autoselect
        15-16  unused

       Additional features of interest: the Ethernet fuse is in the far
       left corner by the 3V battery. The IDPROM is at location U224
       (grid I20) in the leftish middle. The boot PROM is at location
       U300 (grid K8) on the left side in the middle. The 8530 UARTs
       are also on the left side, toward the near end from the boot
       PROM. The keyboard fuse is in the near left corner by the
       keyboard connectorat grid K1. The P4A connector is on the right
       side near the middle bar.

       Note that boot PROM version 1.6 is required to boot from a QIC-24
       tape (?).

501-1381        4/4xx CPU VME
       33MHz CY7C601, TI8847 (?), MMU with 64 hardware contexts. VME
       bus interface. P4 connector.

       From left to right, with component side up and connector edge
       toward you (normal top edge at left), the rear edge of the board
       has: two serial connectors (ports A and B from left to right
       (top/bottom)); a keyboard connector; an Ethernet connector; a
       switch to toggle between Normal and Diagnostic modes; eight LEDs
       (bit 0 to th left/top); and a reset switch.

       There are a variety of jumper blocks. Locations below are given
       with component side up and connector edge toward you.

       J0100 (10-pin block in nearish center)
         Used for debug. All unjumped.

       J0101 (single jumper in rightish center)
         Used for ATE.                                         JUMPED

       J0201 (single jumper in middle near edge)
         Used for ATE.                                         JUMPED

       J0300 (block in near right corner, pin 1 nearest)
         1-2   jump if FPC is present                          JUMPED
         3-4   unjumped if FPC is present                      UNJUMPED
         5-6   avoid a trap when I-flush instruction executed  JUMPED
         7-8   FPC chaining (only if FPC present)              UNJUMPED

       J0705 (10-pin block in far right)
         Used for debug. All unjumped.

       J1901 (36-pin block in nearish right)
         Used for debug. All unjumped.

       J2301 (single jumper in middle far edge)
         Enable 33MHz system clock.                            JUMPED

       J2600 (single jumper in rightish far edge)
         Used for debug.                                       UNJUMPED

       J2801 (single jumper in farish left edge)
         Disable VME arbiter.                                  UNJUMPED

       J2802 (single jumper in farish left edge)
         Enable VME arbiter.                                   JUMPED

       J2803 (single jumper in farish left edge)
         Allow VME to reset CPU.                               UNJUMPED

       J2804 (single jumper in farish left edge)
         Allow CPU to reset VME.                               JUMPED

       J3100 (single jumper in left far edge)
         Enable VME loopback.                                  UNJUMPED

       J3200 (single jumper in middle left edge)
         Enable 16MHz Ethernet clock.                          JUMPED

       J3201 (single jumper in leftish center)
         Jump for type-1 Ethernet transceiver, unjump for type-2.

       J3203 (single jumper in far left)
         Provide VME clock.                                    JUMPED

       J3603 (three-pin jumper in near left corner, pin 1 nearest)
         1-2   RS-423 (-5V)                                    UNJUMPED
         2-3   RS-232 (-12V)                                   JUMPED

       J3604 (three-pin jumper in near left corner, pin 1 at right)
         1-2   RS-423 (+5V)                                    UNJUMPED
         2-3   RS-232 (+12V)                                   JUMPED

       J3701 (single jumper in near left)
         Jump to provide 4.9152MHz SCC clock.                  JUMPED

       J3703 (three pin jumper in middle near edge, pin 1 in middle?)
         1-2   Mouse TD enabled                                UNJUMPED
         2-3   Mouse TD grounded                               JUMPED

       J4000 (block in far left, pin 1 nearest)
         1-2   VME IRQ 1                                       JUMPED
         3-4   VME IRQ 2                                       JUMPED
         5-6   VME IRQ 3                                       JUMPED
         7-8   VME IRQ 4                                       JUMPED
         9-10  VME IRQ 5                                       JUMPED
         11-12 VME IRQ 6                                       JUMPED
         13-14 VME IRQ 7                                       JUMPED
         15-16 unused

       J4600 (single jumper in near left)
         Used for ATE.                                         JUMPED

       J4602 (single jumper in leftish center)
         Used for ATE.                                         JUMPED

       J4604 (single jumper in center)
         Used for ATE.                                         JUMPED

       J4605 (single jumper in left farish)
         Used for ATE.                                         JUMPED

       J4606 (single jumper in far right)
         Used for ATE.                                         JUMPED

       J4607 (single jumper in far leftish)
         Used for ATE.                                         JUMPED

       J4609 (single jumper in middle left edge)
         Used for ATE.                                         JUMPED

       Additional features of interest: the boot PROMs are in a
       row in the far right, U3501-U3504 from left to right (3-0
       respectively). The IDPROM is in the near right at location
       U1404. The P4 connector is nearer than the boot PROMs. The NVRAM
       chip is in the near left, by the divider. The keyboard fuse
       F3701 is in the near left and the Ethernet fuse F3200 in the
       near middle.

       Note that pin 25 of the serial ports on the 501-1381 is -5V out.
       Pin 25 of the serial ports on the 501-1899 is not connected.

       Note that the 501-1381 is not supported in the 4/470 serial
       numbers 136Kxxxx and greater. This chassis has two 50-pin SCSI-2
       connectors on the rear EMI cover.

       Note that boot PROM version 3.0 or later is required to support
       the 501-1721 128M memory board. Boot PROM version 4.1.1 or later
       is required when the 501-1537(1538) VX(MVX) Visualization
       Accelerator is used as the console.

       Note that this board can use P4 cgeight framebuffer 501-1371-04
       or later only.

       Note that SNC 1.2 for Solaris 1.1 requires 501-1381-01 or
       501-1899-01.

       To provide circuit protection to the M+ and M- (+-12V) inputs on
       the UC5170 serial port liner driver, install fused shunts
       150-1669 at locations J3603 and J3604.

       Power requirements are +5V @ 28.7A, +12V @ 0.1A, and -12V @
       0.1A.

501-1382        4/60 (SPARCstation 1) motherboard
       <= 501-1382-12  4M w/o FPU
       >= 501-1382-13  8M w/FPU
       >= 501-1382-14  8M w/FPU FCC-B

       20MHz MB86901A or LSI L64801, Weitek 3170, Sun-4c MMU with 8
       hardware contexts. 20MHz SBus, slot 3 is slave-only.

       From left to right, the rear edge of the board has: a 50-pin
       SCSI-2 connector; an Ethernet connector; two serial port
       connectors (ports A and B from left to right); an 8-pin-DIN
       keyboard/mouse connector; an audio connector; and a headphone
       connector.

       Connector pinouts and form factors are not known.

       Memory consists of up to sixteen 1M (501-1408) or 4M (501-1625
       or 501-1739) x 9 30-pin 80 or 100ns SIMMs, in four banks. Banks
       must be filled in the order 0, 2, 1, 3, and SIMM types may not
       be mixed within banks.

               Nearest disk connectors
                _______     _______
               |       |   |       |
               |   0   |   |   1   |
               |       |   |       |
               |_______|   |_______|

                _______     _______
               |       |   |       |
               |   2   |   |   3   |
               |       |   |       |
               |_______|   |_______|

               Nearest SBus connectors

       The only jumper is J4, a block along the near right edge,
       described only as "SAX" and apparently all pins jumped by
       default.

       Additional features of interest: the boot PROM is in the near
       middle at location U0837. The NVRAM/TOD/ID chip is to the left
       of the boot PROM at location U089. At the far edge, more or less
       from left to right, are the power, floppy power, floppy,
       LED/speaker, and two pairs of internal SCSI and disk power
       connectors. In the near left corner are the SCSI (U2) and
       Ethernet (F071) fuses, and the keyboard fuse (F082) is in the
       rightish near edge. All fuses are 2A, P/N 150-1174.

       Note that the SPARCstation 1 was first supported in SunOS
       4.0.3c.

       Note that boards 501-1382-08 or later, or 501-1629-10 or later,
       and SPARC IU 100-1808-02 or later, are required for use with Sun
       Common LISP, AutoCAD, Cobol, and SunOS 4.1.

       Note that bug 1047696 in the installation of SunOS 4.1.1 and
       4.1.1 Rev B causes trouble when mixing 1M and 4M SIMMs.
       "Install the 4MB SIMMs in bank 0 when installing miniunix."

       Note that the 501-1667 Load Board should be installed in systems
       without disk drives or SBus cards.

       Note that boot PROM version 2.4 requires at least SunOS 4.1.1.

       Power requirements with eight 1M SIMMs are +5V @ 2.5A.

501-1401        3/80 motherboard
       20MHz 68030 and 68882, 68030 on-chip MMU. P4 connector for
       video.

       From left to right, the rear edge of the board has: a 50-pin
       SCSI-2 connector; an Ethernet connector; two serial port
       connectors (ports B and A from left to right, port B appears to
       be DB9 while A is DB25); a parallel port; and an 8-pin-DIN
       keyboard/mouse connector.

       Connector pinouts and form factors are not known.

       The sixteen SIMM slots are arranged in four groups of four.
       Electrically, there are four "banks," each of which is composed
       of one slot from each group:

               Back of machine (nearest SBus connectors)

        bits   -------U0606------ 0   0 --------U0604------- bits 8-15
         16-23 -------U0806------ 2   2 --------U0804-------
               -------U0703------ 1   1 --------U0701-------
               -------U0903------ 3   3 --------U0901-------

        bits   -------U0605------ 0   0 --------U0603------- bits 0-7
         24-31 -------U0805------ 2   2 --------U0803-------
               -------U0702------ 1   1 --------U0700-------
               -------U0902------ 3   3 --------U0900-------

               Front of machine (nearest disk connectors)

       Banks must be filled in order (0 through 3), and SIMM sizes (1M
       or 4M) must not be mixed with in a bank. Only 1M SIMMs
       (501-1408) are officially documented; 4M SIMMs can be used with
       boot PROM version 3.0.2 and later.

       There are a variety of jumpers. All locations are given with
       component side up and connector side toward you.

       J020 (3-pin jumper in middle right edge, pin 1 to left)
        1-2    20MHz FPU clock                                 JUMPED
        2-3    40MHz FPU clock                                 UNJUMPED

       J043 (3-pin jumper in near middle, by serial port A, pin 1 nearest)
        1-2    RS-423 (-5V)                                    UNJUMPED
        2-3    RS-232 (-12V)                                   JUMPED

       J044 (3-pin jumper in near middle, by serial port A, pin 1 farthest)
        1-2    RS-232 (+12V)                                   JUMPED
        2-3    RS-423 (+5V)                                    UNJUMPED

       J045 (3-pin jumper in near right corner, pin 1 farthest)
        1-2    Mouse TD enabled                                UNJUMPED
        2-3    Mouse TD grounded                               JUMPED

       J1000 (single jumper in middle, near SIMMs)
        Jump to enable watchdog reset (test only)              UNJUMPED

       J1804 (block in near left corner, pin 1 to left)
        Unknown.

       Additional features of interest: the boot PROM is in the near
       right, at location U0204 (grid J3 C0). The NVRAM is also in the
       near right, at location U0205 (grid J7 B3). The SCSI fuse F1400
       (see below) is in the near left corner, beside the Ethernet fuse
       F1500. The keyboard fuse F0400 is in the near right corner. The
       power supply connector, the floppy control/data connector, and
       the floppy power connector are in the far left corner. Near the
       far edge are (from left to right) the LED/speaker connector, and
       two pairs of disk control/data (SCSI) and disk power connectors.
       The P4 connector is in the far right.

       Note that pin 38 of the SCSI port is fused (F1400) with a 1.5A
       fuse, P/N 150-1383. The Ethernet and keyboard fuses (F1500 and
       F0400) are 2A, P/N 150-1174.

       Note that 501-1401-07 and earlier boards do not meet the P4 bus
       specification. CPU boards 501-1401-10 and later and 501-1650
       have FCC-A approval.

       "Use SCSI terminator 150-1537."

       Power requirements are +5V @ 4.6A.

501-1413        386i/250 motherboard
       See 501-1324.

501-1414        386i/150 motherboard
       See 501-1241.

501-1462        4/1xx CPU VME 16M w/o FPU
501-1463        4/1xx CPU VME 16M with FPU
501-1464        4/1xx CPU VME 32M w/o FPU
501-1465        4/1xx CPU VME 32M with FPU
       See 501-1199.

501-1491        4/2xx CPU VME with FPU-2 2-hi backpanel
       See 501-1274.

501-1512        4/1xx CPU VME 8M w/o FPU
501-1513        4/1xx CPU VME 8M with FPU
501-1514        4/1xx CPU VME 16M w/o FPU
501-1515        4/1xx CPU VME 16M with FPU
501-1516        4/1xx CPU VME 32M w/o FPU
501-1517        4/1xx CPU VME 32M with FPU
       See 501-1199.

501-1522        4/2xx CPU VME with FPC-6/4 2-hi backpanel
       See 501-1274.

501-1550        3/4xx CPU VME
       See 501-1299.

501-1627        4/20 (SPARCstation SLC) motherboard
       20MHz MB86901A or LSI L64801.

       This board is an unusual shape because it is intended to slip
       into the vertical slot in the monitor case behind the tube. It
       slides in from the top, I believe with the component side facing
       toward the front of the machine (all left/right orientations
       below assume you are looking down on the board from the rear of
       the machine). There are six diagnostic LEDs on the top edge (bit
       0 away from the SIMMs, to the right). On the bottom edge is an
       edge connector which supplies power and connects the CPU to the
       external signal connectors.

       There are no jumpers.

       Memory consists of up to four 4M x 33 72-pin SIMMs (501-1676 or
       501-1698) in SIMM slots U0502, U0602, U0501, and U0601 in that
       order.

       Additional features of interest: the boot PROM is along the
       upper edge, toward the right, at location U1001. The NVRAM is to
       the left of the boot PROM at location U1011. SCSI fuse F0901 and
       Ethernet fuse F1101 are toward the right bottom, near the edge
       connector, and are both non-replaceable PTC devices.

       Note that the SLC was first supported in SunOS 4.0.3c.
       Additionally, CPU boards with the 53C90A SCSI controller require
       a patch to operate under 4.0.3c.

501-1629        4/60 (SPARCstation 1) motherboard
       <= 501-1629-12  4M w/o FPU
       >= 501-1629-13  8M w/FPU
       >= 501-1629-14  8M w/FPU FCC-B

       See 501-1382.

501-1632        4/65 (SPARCstation 1+) motherboard
       25MHz LSI L64801, Weitek 3172, Sun-4c MMU with 8 hardware
       contexts. 25MHz SBus, slot 3 is slave-only.

       From left to right, the rear edge of the board has: a 50-pin
       SCSI-2 connector; an Ethernet connector; two serial port
       connectors (ports A and B from left to right); an 8-pin-DIN
       keyboard/mouse connector; and an audio connector.

       Connector pinouts and form factors are not known.

       Memory consists of up to sixteen 1M (501-1408) or 4M (501-1625
       or 501-1739) x 9 30-pin 80 or 100ns SIMMs, in four banks. Banks
       must be filled in the order 0, 2, 1, 3, and SIMM types may not
       be mixed within banks.

               Nearest disk connectors
                _______     _______
               |       |   |       |
               |   0   |   |   1   |
               |       |   |       |
               |_______|   |_______|

                _______     _______
               |       |   |       |
               |   2   |   |   3   |
               |       |   |       |
               |_______|   |_______|

               Nearest SBus connectors

       The only jumper is J4, a block along the near right edge,
       described only as "SAX" and apparently all pins jumped by
       default.

       Additional features of interest: the boot PROM is in the near
       middle at location U0837. The NVRAM/TOD/ID chip is to the left
       of the boot PROM at location U089. At the far edge, more or less
       from left to right, are the power, floppy power, floppy,
       LED/speaker, and two pairs of internal SCSI and disk power
       connectors. In the near left corner are the SCSI (U2) and
       Ethernet (F071) fuses, and the keyboard fuse (F082) is in the
       rightish near edge. All fuses are 2A, P/N 150-1174.

       Note that the SPARCstation 1+ was first supported in SunOS
       4.0.3c.

       Note that bug 1047696 in the installation of SunOS 4.1.1 and
       4.1.1 Rev B causes trouble when mixing 1M and 4M SIMMs.
       "Install the 4MB SIMMs in bank 0 when installing miniunix."

       Note that the 501-1667 Load Board should be installed in systems
       without disk drives or SBus cards.

       Note that boot PROM version 2.4 requires at least SunOS 4.1.1.

       Power requirements with eight 1M SIMMs are +5V @ 3A.

501-1638        4/75 (SPARCstation 2) motherboard 16M FCC-A
       50MHz CY7C601 @ 40MHz, TI TMS390C601A (602A ?), Sun-4c MMU with
       16 hardware contexts. 20MHz SBus.

       From left to right, the rear edge of the board has: a 50-pin
       SCSI-2 connector; an Ethernet connector; two serial port
       connectors (ports A and B from left to right); an 8-pin-DIN
       keyboard/mouse connector; and an audio connector.

       Connector pinouts and form factors are not known.

       Memory consists of up to sixteen 4M x 9 80ns 30-pin SIMMs. The
       SIMM slots are arranged in four groups of four. Electrically,
       there are four "banks," each of which is composed of one slot
       from each group:

               Back of machine (nearest SBus connectors)

               -------U0311------ 0   0 -------U0322--------
       bits    -------U0312------ 2   2 -------U0321-------- bits
        24-31  -------U0313------ 1   1 -------U0320--------  0-7
               -------U0319------ 3   3 -------U0316--------

               -------U0309------ 0   0 -------U0307--------
       bits    -------U0310------ 2   2 -------U0308-------- bits
        16-23  -------U0314------ 1   1 -------U0315--------  8-15
               -------U0318------ 3   3 -------U0317--------

               Front of machine (nearest disk connectors)

       Banks must be filled in order (0 through 3). THERE IS SOME
       DISPUTE OVER WHICH SLOTS BELONG TO WHICH BANKS. The Sun Field
       Engineer Handbook for 12/15/93 says that the banks are in order
       (i.e. 0, 1, 2, 3 from back to front), but other sources agree
       that they are in the interleaved order shown above.

       There are a variety of jumpers. All locations are given with
       component side up and connector side toward you.

       J0705 (block along the near right edge)
        Described only as "SAX" and apparently all pins jumped by
        default.

       GND1 (single jumper in middle right edge)
        Unknown.

       GND2 (single jumper in nearish leftish)
        Unknown.

       GND3 (single jumper in near rightish)
        Unknown.

       (pair of horizontal three-pin jumpers in near left)
        Jump left two pins for RS232 serial ports, right two pins for
        RS423 serial ports.

       Additional features of interest: the boot PROM is in the near
       middle at location U0501. The NVRAM/TOD/ID chip is to the left
       of the boot PROM at location U0512. At the far left edge and the
       far edge, from left to right, are the floppy power, power,
       floppy, LED/speaker, and two pairs of internal SCSI and disk
       power connectors.

       Note that the SPARCstation 2 was first supported in SunOS
       4.1.1.

       Note that the 501-1667 Load Board should be installed in systems
       without disk drives or SBus cards.

       Power requirements with 16M of 4M SIMMs are +5V @ 3.6A.

501-1650        3/80 motherboard
       See 501-1401.

501-1656        4/1xx CPU 8M w/o FPU
       14.28MHz MB86900, Weitek 1164/1165 (if installed), Sun-4 MMU
       with 16 hardware contexts. VME bus interface (although busmaster
       cards are not supported and there are hints that only 28 bits of
       address are supported). P4 connector for framebuffer.

       From left to right, with the component side up and the connector
       side toward you (normal top edge at the left), the rear edge of
       the board has: a keyboard connector; eight LEDs (bit 0 to the
       right/bottom); a switch to toggle between Normal and Diagnostic
       modes; an Ethernet connector; two serial ports (B and A from
       left to right (top/bottom)); a SCSI connector; and a reset (?)
       button.

       Memory consists of four banks of eight static-column 120ns
       SIMMs, either 256K (501-1314) or 1M (501-1466). Valid memory
       combinations are 8M (all banks 256K), 16M (two banks of 1M), 20M
       (two banks of 1M and two banks of 1M), or 32M (all banks 1M).

           Nearest VME connectors
            _______     _______
           |       |   |       |
           |   3   |   |   4   |             Banks have eight SIMM slots
           | U1516 |   | U1616 |             each.
           |_______|   |_______|   J400

            _______     _______              Note: when using mixed SIMMs
           |       |   |       | J1400       to get 20M, the 1M SIMMs must
           |   1   |   |   2   |             go in banks 2 and 4 or the
           | U1500 |   | U1600 | J1300       machine won't boot.
           |_______|   |_______|

            J100 1-2
                 3-4

       Total memory:           8M      16M     20M     32M
       SIMM size:              256K    1M      256K/1M 1M

       J100    Cache line
         1-2                   JU      UN      JU      UN
         3-4                   UN      JU      UN      JU

       J400    Memory strobe configuration (pin 1 farthest)
         1-2                   UN      JU      UN      JU
         3-4                   JU      UN      UN      JU
         5-6                   JU      JU      JU      UN

       J1300   SIMM addressing mode (pin 1 farthest)
         1-2   same            JU      UN      UN      JU
         3-4   different       UN      JU      JU      UN
         5-6   256K            JU      UN      JU      UN
         7-8   1M              UN      JU      UN      JU
         9-10  2M              UN      UN      UN      UN
         11-12 <32M            JU      JU      JU      UN
         13-14 32M             UN      UN      UN      JU
         15-16 unused          UN      UN      UN      UN

       J1400   SIMM addressing mode (pin 1 farthest)
         1-2   same            JU      UN      UN      JU
         3-4   different       UN      JU      JU      UN
         5-6   256K            JU      UN      UN      UN
         7-8   1M              UN      JU      JU      JU
         9-10  2M              UN      UN      UN      UN
         11-12 <32M            JU      JU      JU      UN
         13-14 32M             UN      UN      UN      JU
         15-16 unused          UN      UN      UN      UN

       There are a variety of other jumper blocks. Locations below are
       given with component side up and connector edge toward you.

       J101 (single jumper in center)
         Jump to enable 57.1MHz clock                          JUMPED

       J600 (block toward far right, pin 1 farthest)
         1-2   27512 boot PROMs                                JUMPED
         3-4   27256 boot PROMs                                UNJUMPED

       J700 (block in center, pin 1 farthest)
         1-2   VME interrupt level 1                           JUMPED
         3-4   VME interrupt level 2                           JUMPED
         5-6   VME interrupt level 3                           JUMPED
         7-8   VME interrupt level 4                           JUMPED
         9-10  VME interrupt level 5                           JUMPED
         11-12 VME interrupt level 6                           JUMPED
         13-14 VME interrupt level 7                           JUMPED
         15-16 unused

       J800 (single jumper in middle right, near P4 connector)
         Force reset.

       J900 (single jumper toward far right, by battery)
         Short 3V battery. (Erase EEPROM?)                     UNJUMPED

       J1000 (single jumper in middle right)
         Enable UART clock.                                    JUMPED

       J1700 (single jumper toward near right)
         Enable Ethernet clock.                                JUMPED

       J1701 (single jumper in near middle)
         Jump for type-1 Ethernet transceiver, unjump for type-2.

       J1800 (single jumper in near middle)
         Jump for AUI Ethernet, unjump for thin Ethernet/autosense.
         (? -- no BNC connector shown on diagram!)

       J1900 (block in center, pin 1 farthest)
         1-2   CPU is VME requester only                       UNJUMPED
         3-4   CPU is VME requester                            JUMPED

       J1901 (block in center, pin 1 farthest)
         1-2   CPU is VME reset slave                          UNJUMPED
         3-4   CPU is VME reset master                         JUMPED

       P2101 (single jumper toward far right)
         Jump to enable VME system clock.                      JUMPED

       Additional features of interest: the boot PROMs are in the far
       right corner at locations U601-U604 (1651-1654 respectively).
       Nearby, along the right edge, is a 3V battery. The P4 connector
       is in the middle right, by the divider. The IDPROM is nearer, at
       location U805. The keyboard fuse F1000 is near the keyboard
       connector at grid B2 and the Ethernet fuse F1800 is near the
       Ethernet connector at grid G2.

       Note that for the Ethernet autosense to operate, more than 30mA
       must be present on the +12V return.

       Note that boot ROM version 3.0 or later is required to use the
       P4 cgsix color framebuffer (501-1374/1505/1532) as the console.

       Power requirements (with FPU) are +5V @ 13.8A and -5V @ 0.1A.

501-1657        4/1xx CPU 8M with FPU
501-1658        4/1xx CPU 16M w/o FPU
501-1659        4/1xx CPU 16M with FPU
501-1660        4/1xx CPU 32M w/o FPU
501-1661        4/1xx CPU 32M with FPU
       See 501-1656.

501-1680        4/20 (SPARCstation SLC) motherboard
       See 501-1627.

501-1686        4/6xx motherboard VME 0M
       Up to two Mbus modules. 20MHz SBus.

       From left to right, with the component side up and the connector
       side toward you (normal top edge at the left), the rear edge of
       the board has: eleven LEDs (bit 0 to the right/bottom); a switch
       to toggle between Normal and Diagnostic modes; a "scan" button;
       two serial ports (A and B from left to right (top/bottom)); a
       keyboard/mouse connector; an audio connector; an Ethernet
       connector; and a 50-pin SCSI-2 connector.

       Memory consists of up to thirty-two 4M (501-1739) or 16M
       (501-2060) x 9 80ns 30-pin SIMMs in two banks of 16 each. Bank 0
       is on the left (starts with U1107, ends with U1401), bank 1 is
       on the right (starts with U1108, ends with U1402). Banks cannot
       be partially filled. The chart in the FE manual looks like this,
       for whatever it's worth:

                   Bank 0          Bank 1
               U????  LO/HI    U????  LO/HI            bits
       near    -----  -----    -----  -----            ----
        VME    U1401   7L1     U1402   7H1             56-63
               U1201   7L0     U1202   7H0             56-63
               U1403   6L1     U1404   6H1             48-55
               U1203   6L0     U1204   6H0             48-55
               U1405   5L1     U1406   5H1             40-47
               U1205   5L0     U1206   5H0             40-47
               U1407   4L1     U1408   4H1             32-39
               U1207   4L0     U1208   4H0             32-39

               U1301   3L1     U1302   3H1             24-31
               U1101   3L0     U1102   3H0             24-31
               U1303   2L1     U1304   2H1             16-23
               U1103   2L0     U1104   2H0             16-23
               U1305   1L1     U1306   1H1             8-15
               U1105   1L0     U1106   1H0             8-15
       near    U1307   0L1     U1308   0H1             0-7
        SBus   U1107   0L0     U1108   0H0             0-7
                         ^
                         | xx0 = LO byte, xx1 = HI byte

       There are a variety of jumpers. Locations below are given with
       component side up and connector edge toward you.

       J1701 (single jumper in far left)
        Jump to enable internal VME arbiter                            JUMPED

       J1702 (single jumper in far leftish)
        Jump to enable internal VME arbiter                            JUMPED

       J1703 (single jumper in far middle)
        Jump to enable internal VME arbiter                            JUMPED

       J1704 (single jumper in far rightish)
        Jump to enable internal VME arbiter                            JUMPED

       J1705 (single jumper in middle)
        Jump to disable internal VME arbiter                           UNJUMPED

       J1706 (3-pin jumper in leftish far edge, pin 1 nearest)
        1-2    Connect P1.SYSRST to VME.RST.IN
        2-3    Connect VME.RST.OUT to P1.SYSRST                        JUMPED

       J1801 (block in far right corner, pin 1 to left)
        1-2    Enable VME IRQ7                                         JUMPED
        3-4    Enable VME IRQ6                                         JUMPED
        5-6    Enable VME IRQ5                                         JUMPED
        7-8    Enable VME IRQ4                                         JUMPED
        9-10   Enable VME IRQ3                                         JUMPED
        11-12  Enable VME IRQ2                                         JUMPED
        13-14  Enable VME IRQ1                                         JUMPED
        15-16  unused

       J1802 (single jumper in rightish far edge)
        Jump to enable 16MHz clock                                     JUMPED

       J1803 (single jumper in far left corner)
        Jump to enable VME slot-1 functionality                        JUMPED

       J2202 (single jumper in near right corner)
        Jump to enable 25MHz ESP-236 clock                             JUMPED

       J2602 (3-pin jumper in middle near edge, pin 1 nearest)
        1-2    mouse TD grounded                                       JUMPED
        2-3    mouse TD enabled

       J2603 (single jumper in nearish middle)
        Jump to enable 19MHz SCC clock                                 JUMPED

       J2803 (3-pin jumper in nearish middle, pin 1 nearest)
        1-2    RS-232 (-12V)                                           JUMPED
        2-3    RS-423

       J2804 (3-pin jumper in nearish middle, pin 1 nearest)
        1-2    RS-232 (+12V)                                           JUMPED
        2-3    RS-423

       J3201 (single jumper in middle)
        Jump to enable 80MHz clock                                     JUMPED

       Additional features of interest: the boot PROMs are in the near
       left corner at locations U3001, U3002, U3004, and U3003
       (clockwise from far right). The NVRAM chip is in the middle, at
       location U2701. The serial ports A and B fuses (F2801/F2802) are
       along the near edge by serial port B. The keyboard fuse F2601 is
       by the keyboard connector, the Ethernet fuse F2301 is by the
       Ethernet connector, and the SCSI fuse F2201 is by the SCSI
       connector.

       Note that boot PROM version 2.8v2 or later is required to use
       SM41 modules. Boot PROM version 2.10 or later is required to use
       SM51, SM520, or SM521 modules.

       Power requirements (with 0M and no Mbus modules) are +5V @
       14.27A.

501-1689        4/40 (SPARCstation IPC) motherboard 8M FCC-A
       25MHz MB86901A or LSI L64801. 25MHz SBus.

       From left to right, the rear edge of the board has: a 50-pin
       SCSI-2 connector; an Ethernet connector; two serial port
       connectors (ports B and A from left to right, apparently DB9);
       a 13W3 video connector; an 8-pin-DIN keyboard/mouse connector;
       and an audio connector.

       Connector pinouts and form factors are not known.

       Video output is analog monochrome with the following resolutions
       and sync frequencies: 1152 x 900 @ 61.8KHz horizontal, 66Hz
       vertical; 1152 x 900 @ 71.7HKz horizontal, 76Hz vertical; 1024 x
       800 @ 71.7KHz horizontal, 85Hz vertical; and 1022 x 1000 @
       81.8KHz horizontal, 76Hz vertical.

       Memory is in the form of 1M (501-1697) or 4M (501-1625 or
       501-1739) x 9 30-pin 80ns SIMMs in three banks:

               Nearest disk connectors
                        _______     _______
                       |       |   |       |
                       |   0   |   |   1   |
                       |       |   |       |
                       |_______|   |_______|

                                    _______
                                   |       |
                                   |   2   |
                                   |       |
                                   |_______|

               Nearest SBus connectors

       SIMMs must be identical within banks. If 4M SIMMs are used at
       all, fill bank 0 with them first.

       There are a variety of jumpers. All locations are given with
       component side up and connector side toward you.

       J0710 (3-pin jumper by SBus slot 1, pin 1 to left)
        1-2    JUMPED by default
        2-3    Jump to bypass the S4_Video ASIC

       J0960 (3-pin jumper in near middle, pin 1 farthest)
        1-2    Jump for RS423 serial ports
        2-3    Jump for RS232 serial ports

       J0961 (3-pin jumper in near middle, pin 1 farthest)
        1-2    Jump for RS423 serial ports
        2-3    Jump for RS232 serial ports

       J1004 (block along right edge)
        Described only as "SAX". Apparently all pins jumped by default.

       Additional features of interest: the boot PROM is in the middle
       left edge at location U0902. The NVRAM/TOD/ID chip is nearer
       than the boot PROM, at location U0901. At the far edge, from
       left to right, are the power, floppy, speaker, and internal SCSI
       connectors. The Ethernet (F0802) and SCSI (F0801) fuses are in
       the near left corner, P/N 150-1174. (150-1974 and 150-1162
       repsectively may also work?) The keyboard fuse F0901 is by
       serial port B, P/N 150-1174 (150-1162?).

       Note that the IPC was first supported in SunOS 4.0.3c.
       Additionally, CPU boards with the 53C90A SCSI controller require
       a patch to operate under 4.0.3c.

       Note that bug 1047696 in the installation of SunOS 4.1.1 and
       4.1.1 Rev B causes trouble when mixing 1M and 4M SIMMs.
       "Install the 4MB SIMMs in bank 0 when installing miniunix."

       Note that SCSI bus errors may occur when multiple SCSI devices
       are used with boards below 501-1689-06.

       Note that boards below 501-1689-07 fail SunDiag floppy drive
       testing.

       Note that the 2.4, 2.6, and 2.9 boot PROM modes do not support
       SunOS 4.0.3c or 4.1. Set the NVRAM parameter "version2?" to
       FALSE to enable the 1.7 boot PROM mode.

       Power requirements (with a full 48M of 4M SIMMs) are +5V @ 3.7A.

501-1720        4/20 (SPARCstation SLC) motherboard 8M
       See 501-1627.

501-1733        SPARCstation 10 motherboard
       Up to two Mbus modules. 16.6/20MHz (model 20) or 18/20MHz SBus.

       SPARCstation 10 motherboards come in three fab versions,
       270-1733-12 and 270-1733-13 (501-1733/2259/2274), and
       270-1733-14 (501-2365), each with minor layout differences from
       the others. Additionally, the 501-2274 part for the model 20 is
       clocked at a different speed.

       From left to right, the rear edge of the board has: ISDN NT and
       TE connectors; a parallel/audio/AUI Ethernet connector; a
       keyboard connector; a serial port connector (ports A and B in
       the same connector); a 10BaseT Ethernet connector; and a 50-pin
       SCSI-2 connector.

       Connector pinouts and form factors are not known.

       Memory is in the form of up to eight 16M (501-1785 or 501-2273)
       or 64M (501-1930) 70ns SIMMs. They must be installed in the
       order shown:

           Nearest SBus connectors

               J201 --------------------- (1)  0x00000000-0x03FFFFFF
               J202 --------------------- (8)  0x10000000-0x13FFFFFF
               J203 --------------------- (3)  0x04000000-0x07FFFFFF
               J301 --------------------- (6)  0x14000000-0x17FFFFFF
               J302 --------------------- (4)  0x08000000-0x0BFFFFFF
               J303 --------------------- (5)  0x18000000-0x1BFFFFFF
               J304 --------------------- (2)  0x0C000000-0x0FFFFFFF
               J305 --------------------- (7)  0x1C000000-0x1FFFFFFF

       This would appear to mean that when using 16M SIMMs, memory is
       not physically contiguous, and that 16M and 64M SIMMs can be
       installed in any mixture.

       There are a variety of jumpers. All locations are given with
       component side up and connector side toward you.

       J0801 (3-pin jumper in near center, pin 1 to left)
        1-2    RS-232 (+12V)
        2-3    RS-423

       J0802 (3-pin jumper in near center, pin 1 to left)
        1-2    RS-232 (-12V)
        2-3    RS-423

       J1101 (single jumper in near left corner)
        Jump to enable 100-ohm ISDN TE termination                     JUMPED

       J1102 (single jumper in near left corner)
        Jump to enable 100-ohm ISDN TE termination                     JUMPED

       J1401
        270-1733-12: (single jumper in near left)
         Jump to select 66MHz (model 20)/72 MHz clock                  JUMPED
        270-1733-13: (3-pin jumper in near left, pin 1 to right)
         1-2   Select 80MHz clock
         2-3   Select 66MHz (model 20)/72MHz clock                     JUMPED

       J1402 (8-pin block in rightish center)
        JTAG test point                                                UNJUMPED

       J1403 (3-pin jumper in near center, pin 1 to left)(270-1733-12 only)
        1-2    Select 66MHz (model 20)/72MHz clock                     JUMPED
        2-3    Select 80MHz clock

       J1404 (3-pin jumper in near center, pin 1 nearest)(270-1733-12 only)
        1-2    Select 66MHz (model 20)/72MHz clock                     JUMPED
        2-3    Select 80MHz clock

       J1601 (single jumper in middle right edge)
        GND test point

       J1602 (single jumper in farish right edge)
        GND test point

       J1603 (single jumper in near right)
        GND test point

       J1604 (single jumper in  middle near edge)
        GND test point

       J1703 (block in rightish near edge)
        1-2    manufacturing jumper - mousei                           UNJUMPED
        3-4    manufacturing jumper - kbdi                             UNJUMPED
        5-6    manufacturing jumper - kbdo                             UNJUMPED
        7-8    manufacturing jumper - edgeon                           UNJUMPED
        9-10   manufacturing jumper - ptxdb                            UNJUMPED
        11-12  manufacturing jumper - prxdb                            UNJUMPED
        13-14  manufacturing jumper - ptxda                            UNJUMPED
        15-16  manufacturing jumper - prxda                            UNJUMPED
        17-18  manufacturing jumper - tpe<0>                           UNJUMPED
        19-20  manufacturing jumper - tpe<1>                           UNJUMPED
        21-22  manufacturing jumper - tpe<2>                           UNJUMPED
        23-24  manufacturing jumper - tpe<3>                           UNJUMPED

       Additional features of interest: the boot PROM is in the near
       right at location U1005. The NVRAM/TOD/ID chip is beyond the
       boot PROM, at location U1004. The power connector is in the far
       left corner and the floppy and internal SCSI connector is in the
       far right corner. The speaker fuse F1302, Ethernet fuse F1301,
       and keyboard fuse F0801 are in a row along the middle near edge.
       The SCSI fuse F1502 is in the far right corner near the SCSI
       connector. The +12V fuse F1501 is in the middle left edge. All
       fuses are nonreplaceable PTC devices. In the nearish left is a
       large square chip, the MSI. For 270-1733-12 and -13, it may be
       either 100-2905-02 (L1A6396) or 100-2905-03 (L1B7596). For
       270-1733-14, it is always 100-2905-03 (L1B7596).

       Note that the 270-1733-14 fab has BABT approval for ISDN and
       X.25 use in the UK.

       Note that boot PROM version 2.12 is required to install two
       501-2358 SM40 Mbus modules.

       Note that when adding a second Mbus module, any internal disk
       drives with PTC protection should have the TERMPWR option
       disabled. Otherwise, the power supply overcurrent protection may
       be tripped when powering up.

       Note that the GT and ZX options are not supported on boards with
       MSI 100-2905-02 (LSI Logic L1A6396). They are only supported on
       board with MSI 100-2905-03 (LSI Logic L1B7596).

       When installing internal SCSI disk drives, disable the TERMPWR
       option. SCSI bus TERMPWR is grounded on internal cable
       530-1874-02. If TERMPWR is not disabled on drives with PTC
       protection, the power supply overcurrent protection may be
       tripped when powering up. If TERMPWR is not disabled on drives
       with fuse protection, the fuses will blow. TERMPWR on the
       internal SCSI bus is not connected to TERMPWR on the external
       SCSI bus. Additionally, the inner surface of the SS10 chassis is
       conductive, so drives must be mounted with insulating hardware.

501-1742        4/3xx CPU VME 32M
       See 501-1316.

501-1744        4/75 (SPARCstation 2) motherboard 0M FCC-A
       See 501-1638.

501-1748        4/20 (SPARCstation SLC) motherboard 0M
       See 501-1627.

501-1780        4/50 (SPARCstation IPX) motherboard 16M
       40MHz Fujitsu MB86903 or Weitek W8701, Sun-4c MMU with 8
       hardware contexts. 20MHz SBus.

       From left to right, the rear edge of the board has: a 50-pin
       SCSI-2 connector; an Ethernet connector; two serial port
       connectors (ports B and A from left to right, apparently DB9);
       a 13W3 video connector; an 8-pin-DIN keyboard/mouse connector;
       and an audio connector.

       Connector pinouts and form factors are not known.

       Video output is analog 8-bit color with the following
       resolutions and sync frequencies: 1152 x 900 @ 61.8KHz
       horizontal, 66Hz vertical; 1152 x 900 @ 71.7HKz horizontal, 76Hz
       vertical; 1024 x 800 @ 71.7KHz horizontal, 85Hz vertical; and
       1022 x 1000 @ 81.8KHz horizontal, 76Hz vertical.

       Memory consists of up to four 4M or 16M x 33 72-pin SIMMs
       (501-1812 (4M), and 501-1822 or 501-1915 (16M)). SIMM types may
       be mixed, and should be installed according to this table:

            total RAM         U0310   U0309   U0308   U0307
            ---------         -----   -----   -----   -----
               8M              4M              4M
               12M             4M      4M      4M
               16M             4M      4M      4M      4M
                or             16M
               20M             16M             4M
               24M             16M     4M              4M
               28M             16M     4M      4M      4M
               32M             16M             16M
               36M             16M     16M     4M
               40M             16M     16M     4M      4M
               48M             16M     16M     16M
               52M             16M     16M     16M     4M
               64M             16M     16M     16M     16M

       There are a variety of jumpers. All locations are given with
       component side up and connector side toward you.

       J0502 (3-pin jumper in near left, pin 1 farthest)
        1-2    Jump for RS423 serial ports
        2-3    Jump for RS232 serial ports

       J0503 (3-pin jumper in near left, pin 1 farthest)
        1-2    Jump for RS423 serial ports
        2-3    Jump for RS232 serial ports

       J0705 (block in near left)
        Described only as "SAX". Apparently all pins jumped by default.

       Additional features of interest: the boot PROM is along the
       middle left edge at location U0501. The NVRAM/TOD/ID chip is
       beyond the boot PROM at location U0512. At the far edge, from
       left to right, are the power, floppy, speaker, and internal SCSI
       connectors. In the far left corner are the keyboard (F0602) and
       Ethernet (F0404) fuses, and the SCSI fuse (F0403) is in the
       middle far edge. The fuses are not field-replaceable.

       Note that the IPX was first supported in SunOS 4.1.1.
       Additionally, CPU boards with the 100-2770-02 LSC L1A6341 ASIC
       are subject to bugs 1055265, 1057110, and 1057243 under SunOS
       4.1.1 and 4.1.1 Rev B. The IPX supplement fixes these bugs, and
       was rolled into SunOS 4.1.2.

       Note that bug 1047696 in the installation of SunOS 4.1.1 and
       4.1.1 Rev B causes trouble when mixing 4M and 16M SIMMs.
       "Install the 16MB SIMM in U0310 when installing miniunix."

       Power requirements are +5V @ 4.4A with 64M, and +5V @ 3.8A with
       16M (of 4M SIMMs); and +12V @ 0.4A.

501-1810        4/50 (SPARCstation IPX) motherboard 0M
       See 501-1780.

501-1835        4/40 (SPARCstation IPC) motherboard 8M FCC-B
       See 501-1689.

501-1858        4/75 (SPARCstation 2) motherboard 16M FCC-B
       See 501-1638.

501-1859        4/75 (SPARCstation 2) motherboard 0M FCC-B
       See 501-1638.

501-1861        4/25 (SPARCstation ELC) motherboard
       33MHz Fujitsu MB86903 or Weitek W8701, Sun-4c MMU with 8
       hardware contexts.

       This board is an unusual shape because it is intended to slip
       into the vertical slot in the monitor case behind the tube. It
       slides in from the top, I believe with the component side facing
       toward the front of the machine (all left/right orientations
       below assume you are looking down on the board from the rear of
       the machine). On the bottom edge is an edge connector which
       supplies power and connects the CPU to the external signal
       connectors.

       There are no jumpers.

       Memory consists of up to four 4M or 16M x 33 72-pin SIMMs
       (501-1812 or 501-1698 (4M), and 501-1822 (16M)). SIMM types may
       be mixed, and should be installed according to this table:

            total RAM         U0407   U0408   U0409   U0410
            ---------         -----   -----   -----   -----
               8M              4M              4M
               12M             4M      4M      4M
               16M             4M      4M      4M      4M
                or             16M
               20M             16M             4M
               24M             16M     4M              4M
               28M             16M     4M      4M      4M
               32M             16M             16M
               36M             16M     16M     4M
               40M             16M     16M     4M      4M
               48M             16M     16M     16M
               52M             16M     16M     16M     4M
               64M             16M     16M     16M     16M

       Additional features of interest: the boot PROM is a PLCC toward
       the upper right corner, at location U0806. The NVRAM is to the
       right of the boot PROM at location U0813. Ethernet fuse F0901
       and SCSI fuse F0701 are toward the right bottom, near the edge
       connector, and are both non-replaceable PTC devices.

       Note that the ELC was first supported in SunOS 4.1.1c.
       Additionally, bug 1047696 in the installation of SunOS 4.1.1 and
       4.1.1 Rev B causes trouble when mixing 4M and 16M SIMMs.
       "Install the 16MB SIMM in U0407 when installing miniunix."

501-1866        SPARCcenter 2000 motherboard XDBus 0M
       Twin XDBuses. Up to two Mbus modules. 20MHz SBus.

       With component side up, external connector edge toward you, from
       left to right, the rear edge of the board has: nine LEDs (PA,
       PB, and bits 7-0 from left to right); a serial port connector
       (port A); a keyboard/mouse connector; and a serial port
       connector (port B).

       Memory is in the form of up to sixteen 8M (501-1817) or 32M
       (501-2196) 70ns SIMMs, in interleaved groups of eight, with half
       of each group attached to each XDBus. The minimum memory
       configuration is eight SIMMs in group 0.

               Back of machine (nearest SBus connectors)

                    -------U4800------ 0  XDBus: 1
                    -------U4400------ 1         1
                    -------U5000------ 0         1
                    -------U4600------ 1         1
                    -------U4900------ 0         1
                    -------U4500------ 1         1
                    -------U5100------ 0         1
                    -------U4700------ 1         1
                    -------U4000------ 0         0
                    -------U3600------ 1         0
                    -------U4200------ 0         0
                    -------U3800------ 1         0
                    -------U4100------ 0         0
                    -------U3700------ 1         0
                    -------U4300------ 0         0
                    -------U3900------ 1         0

               Front of machine (nearest XDBus connector)

       There are three jumpers.

       J1400 (3-pin jumper in near left, pin 1 nearest)
        1-2    RS-423
        2-3    RS-232 (+12V)

       J1401 (3-pin jumper in near left, pin 1 nearest)
        1-2    RS-423
        2-3    RS-232 (-12V)

       J1501 (3-pin jumper in center near edge, pin 1 to right)
        2-3    JUMPED always.

       Additional features of interest: the boot PROM is four chips
       along the near left edge, at locations U1206, U1204, U1201, and
       U1200 (farthest to nearest). The NVRAM chip is to the right of
       the boot PROM, at location U1205. The keyboard fuse (a PTC
       device) is by the keyboard/mouse connector at F1500.

       Note that guide pins were added to the SPARCcenter 2000
       backplane starting in November 1993. Remove the screws on the
       inside ends of the motherboard XDBus connectors before
       installing it in a backplane with guide pins.

       Note that the highest-revision boot PROM should be installed in
       system board 0.

       Note that the 501-1866 can only access 1M of cache; the 501-2334
       and 501-2362 do not have this limitation.

       Note that FAB 270-1866-03 uses fuses at F0200 and F0300; FAB
       270-1866-04 uses PTCs.

       Note that the SPARCcenter 1000 was first supported by Solaris
       2.2 (SunOS 5.2). Solaris 2.2 supports up to five system boards,
       or eight Mbus modules on four system boards. Solaris 2.3
       supports up to twenty Mbus modules on ten system boards.

501-1870        4/40 (SPARCstation IPC) motherboard 8M FCC-B
       See 501-1689.

501-1899        4/4xx CPU VME
       See 501-1381.

501-1912        4/75 (SPARCstation 2) motherboard 32M FCC-B
       See 501-1638.

501-1926        4/75 (SPARCstation 2) motherboard 32M FCC-B
       See 501-1638 (minor layout differences).

501-1959        4/50 (SPARCstation IPX) motherboard 16M
       See 501-1780.

501-1974        4/40 (SPARCstation IPC) motherboard 8M FCC-B
       See 501-1689.

501-1989        4/75 (SPARCstation 2) motherboard 16M FCC-B
       See 501-1638 (minor layout differences).

501-1995        4/75 (SPARCstation 2) motherboard 0M FCC-B
       See 501-1638 (minor layout differences).

501-2031        4/30 (SPARCstation LX/ZX) motherboard 32M
       50 MHz microSPARC. 20MHz SBus.

       This board is an unusual shape. On one edge are edge connectors.
       All directions below are given assuming the component side up
       and the edge connectors toward you.

       There are two jumpers.

       J1801 (3-pin jumper in near right corner)
        1-2    100-ohm ISDN TE termination enabled                     JUMPED
        2-3    disabled

       J1802 (3-pin jumper in near right corner)
        1-2    100-ohm ISDN TE termination enabled                     JUMPED
        2-3    disabled

       The onboard video produces analog color output at the following
       resolution and sync frequencies: 1152 x 900 @ 61.8KHz
       horizontal, 66Hz vertical; 1152 x 900 @ 71.7KHz horizontal, 76Hz
       vertical; 1024 x 768 @ 61.8KHz horizontal, 77Hz vertical; and
       1600 x 1280 @ 71.7KHz horizontal, 76Hz vertical. Onboard VRAM is
       1M; a 501-2061 1M VSIMM may be installed in U1301 (on right) to
       achieve 2M VRAM.

       Memory consists of up to six SIMMs, in three pairs of 4M
       (501-1991) or 16M (501-2059) SIMMs. SIMM types may be mixed, and
       should be installed according to this table:

                      bank1   bank2   bank3   bank1   bank2   bank3
         total RAM    U0304   U0301   U0402   U0303   U0302   U0401
         ---------    -----   -----   -----   -----   -----   -----
            16M        4M      4M              4M      4M
            24M        4M      4M      4M      4M      4M      4M
            32M        16M                     16M
            40M     *  4M      16M             4M      16M
            48M     *  4M      4M      16M     4M      4M      16M
             or        16M     4M      4M      16M     4M      4M
            64M        16M     16M             16M     16M
            72M     *  4M      16M     16M     4M      16M     16M
            96M        16M     16M     16M     16M     16M     16M

       Rows marked with '*' do not work under SunOS 4.1.3c. "Put 16MB
       SIMMs in Bank 1."

       Additional features of interest: the boot PROM is a PLCC in the
       near left corner, at location U0701. The NVRAM is beyond the
       boot PROM at location U0707. Ethernet fuse F2001 and SCSI
       TERMPWR fuse F0601 are in the near left corner. Keyboard fuse
       F2001 and audio fuse F2003 are in the middle near edge. Along
       the far edge, more or less from left to right, are the
       speaker/LED, power, floppy, and internal SCSI connectors.

       Note that the SPARCstation LX/ZX was first supported in SunOS
       4.1.3c.

       Note that when the 501-2061 VSIMM is installed, (one of?) the
       following commands should be issued at the ROM monitor prompt:

           setenv output-device screen:r1280x1024x67
           setenv output-device screen:r1280x1024x76
           setenv output-device screen:r1600x1280x76

       Note that when the '16" Mid-Range Color Monitor' is installed,
       (one of?) the following commands should be issued at the ROM
       monitor prompt:

           setenv output-device screen:r1152x900x66
           setenv output-device screen:r1024x768x77

501-2032        4/30 (SPARCstation LX/ZX) motherboard 16M
       See 501-2031.

501-2044        4/50 (SPARCstation IPX) motherboard 0M
       See 501-1780.

501-2055        4/6xx motherboard VME 0M
       See 501-1686.

501-2079        4/10 (SPARCclassic X) motherboard 4M
       See 501-2262.

501-2200        4/15 (SPARCclassic) motherboard 16M
       See 501-2262.

501-2233        4/30 (SPARCstation LX/ZX) motherboard 0M
       See 501-2031.

501-2259        SPARCstation 10 motherboard
       See 501-1733. Fabs 270-1733-12 and -13.

501-2262        4/10/15 (SPARCclassic X/SPARCclassic) motherboard 0M
       50 MHz microSPARC. 20MHz SBus.

       This board is an unusual shape. On one edge are edge connectors.
       All directions below are given assuming the component side up
       and the edge connectors toward you.

       There are no jumpers.

       The onboard video produces analog color output at the following
       resolution and sync frequencies: 1152 x 900 @ 61.8KHz
       horizontal, 66Hz vertical; 1152 x 900 @ 71.7KHz horizontal, 76Hz
       vertical; and 1024 x 768 @ 61.8KHz horizontal, 77Hz vertical.

       Memory consists of up to six SIMMs, in three pairs. 1M
       (501-2289), 2M (501-2433), 4M (501-1991), and 16M (501-2059)
       60ns SIMMs are documented for SPARCclassic X models; only 4M and
       16M SIMMs are documented for the SPARCclassic proper. SIMM types
       may be mixed, and should be installed according to this table:

                      bank1   bank2   bank3   bank1   bank2   bank3
         total RAM    U0304   U0301   U0402   U0303   U0302   U0401
         ---------    -----   -----   -----   -----   -----   -----
            8M     X   1M      1M      2M      1M      1M      2M
             or    X   2M      2M              2M      2M
             or    X   4M                      4M
            12M    X   1M      1M      4M      1M      1M      4M
             or    X   2M      4M              2M      4M
             or    X   2M      2M      2M      2M      2M      2M
            16M        4M      4M              4M      4M
             or    X   2M      2M      4M      2M      2M      4M
            20M    X   2M      4M      4M      2M      4M      4M
            24M        4M      4M      4M      4M      4M      4M
            32M        16M                     16M
            36M    X   1M      1M      16M     1M      1M      16M
             or    X   2M      16M             2M      16M
            40M    X   2M      2M      16M     2M      2M      16M
             or     *  4M      16M             4M      16M
            44M    X   2M      4M      16M     2M      4M      16M
            48M     *  4M      4M      16M     4M      4M      16M
             or    C   16M     4M      4M      16M     4M      4M
            64M        16M     16M             16M     16M
            72M     *  4M      16M     16M     4M      16M     16M
            96M        16M     16M     16M     16M     16M     16M

       Rows marked with 'X' are documented for the SPARCclassic X only.
       Rows marked with 'C' are documented for the SPARCclassic proper
       only. Rows marked with '*' do not work under SunOS 4.1.3c. "Put
       16MB SIMMs in Bank 1."

       Additional features of interest: the boot PROM is a PLCC toward
       the middle left edge, at location U0701. The NVRAM is to the
       left of the boot PROM at location U0707. Ethernet fuse F1703 and
       keyboard fuse F1701 are in the near left corner. The SCSI
       TERMPWR fuse F0601 is toward the near right corner. All fuses
       are non-replaceable PTC devices. Along the far edge, from left
       to right, are the power, speaker/LED, floppy, and internal SCSI
       connectors.

       Note that the SPARCclassic/SPARCclassic X was first supported in
       SunOS 4.1.3c.

501-2274        SPARCstation 10 motherboard (model 20 only)
       See 501-1733. Fabs 270-1733-12 and -13.

501-2313        4/10 (SPARCclassic X) motherboard 8M
       See 501-2262.

501-2326        4/15 (SPARCclassic) motherboard 32M
       See 501-2262.

501-2334        SPARCcenter 2000 motherboard XDBus 0M
       See 501-1866.

501-2336        SPARCserver 1000 motherboard XDBus 0M
       Up to two Mbus modules. 20MHz SBus.

       With component side up, external connector edge toward you, from
       left to right, the rear edge of the board has: nine LEDs (PA,
       PB, and bits 7-0 from left to right); a serial port connector
       (port A); a keyboard/mouse connector; a serial port connector
       (port B); a 50-pin SCSI-2 connector; and a 10baseT Ethernet
       connector.

       Memory is in the form of up to sixteen 8M (501-1817) or 32M
       (501-2196) 70ns SIMMs, in staggered groups of four. The minimum
       memory configuration is four SIMMs in group 0.

               Back of machine (nearest SBus connectors)

               -------J2800------ 0   0 -------J3000--------
               -------J3200------ 1   1 -------J3400--------
               -------J3600------ 2   2 -------J3800--------
               -------J4000------ 3   3 -------J4200--------
               -------J2900------ 0   0 -------J3100--------
               -------J3300------ 1   1 -------J3500--------
               -------J3700------ 2   2 -------J3900--------
               -------J4100------ 3   3 -------J4300--------

               Front of machine (nearest XDBus connector)

       There are two jumpers.

       J1200 (3-pin jumper in near middle, pin 1 to left)
        1-2    RS-423
        2-3    RS-232 (+12V)

       J1201 (3-pin jumper in near middle, pin 1 to left)
        1-2    RS-423
        2-3    RS-232 (-12V)

       Additional features of interest: the boot PROM is four chips in
       the near left corner, at locations U1000-U1004 (from right to
       left). The TOD chip is just to the right of the boot PROM, at
       location U1007.

       Note that guide pins were added to the SPARCserver 1000
       backplane starting in December 1993. Remove the screws on either
       end of the motherboard XDBus connector before installing it in a
       backplane with guide pins.

       Note that the highest-revision boot PROM should be installed in
       system board 0.

       Note that the SPARCserver 1000 was first supported by Solaris
       2.2 (SunOS 5.2).

501-2362        SPARCcenter 2000 motherbard XDBus 0M
       See 501-1866.

501-2365        SPARCstation 10 motherboard
       See 501-1733. Fab 270-1733-14.

501-2377        SPARCstation 10SX/BSX motherboard 0M
       Up to two Mbus modules. 18/20MHz SBus.

       From left to right, the rear edge of the board has: headphone,
       microphone, audio in, and audio out connectors; a parallel/AUI
       Ethernet connector; a keyboard connector; a serial port
       connector (ports A and B in the same connector); a 10BaseT
       Ethernet connector; a 50-pin SCSI-2 connector; and a 13W3 video
       connector.

       Connector pinouts and form factors are not known.

       Memory is in the form of up to eight 16M (501-1785 or 501-2273)
       or 64M (501-1930) 70ns SIMMs. They must be installed in the
       order shown:

           Nearest SBus connectors

               J201   ---------------------   (1)
               J202   ---------------------   (8)
               J203   ---------------------   (3)
               J301   ---------------------   (6)
               J302   ---------------------   (4)
               J303   ---------------------   (5)
               J304   ---------------------   (2)
               J305   ---------------------   (7)

       There are a variety of jumpers. All locations are given with
       component side up and connector side toward you.

       A single 4M (501-2306) or 8M (501-2342) VSIMM may be installed
       (at J0405?).

       J0801 (3-pin jumper in near center, pin 1 to left)
        1-2    RS-232 (+12V)
        2-3    RS-423

       J0802 (3-pin jumper in near center, pin 1 to left)
        1-2    RS-232 (-12V)
        2-3    RS-423

       J1402 (8-pin block in rightish center)
        JTAG test point                                                UNJUMPED

       J1601 (single jumper in middle right edge)
        GND test point

       J1602 (single jumper in farish right edge)
        GND test point

       Additional features of interest: the boot PROM is in the near
       right at location U1005. The NVRAM/TOD/ID chip is beyond the
       boot PROM, at location U1004. The power connector is in the far
       left corner and the floppy and internal SCSI connector is in the
       far right corner. The Ethernet fuse F1301, and keyboard fuse
       F0801 are along the middle near edge. The SCSI fuse F1502 is in
       the far right corner near the SCSI connector. The +12V fuse
       F1501 is in the middle left edge. All fuses are nonreplaceable
       PTC devices. Audio daughterboard 501-2395 is always installed in
       the near left corner.

       Note that audio sampling at 37.8KHz is not supported.

       Note that when adding a second Mbus module, any internal disk
       drives with PTC protection should have the TERMPWR option
       disabled. Otherwise, the power supply overcurrent protection may
       be tripped when powering up.

       Note that the GT and ZX options are not supported on boards with
       MSI 100-2905-02 (LSI Logic L1A6396). They are only supported on
       board with MSI 100-2905-03 (LSI Logic L1B7596).

       When installing internal SCSI disk drives, disable the TERMPWR
       option. SCSI bus TERMPWR is grounded on internal cable
       530-1874-02. If TERMPWR is not disabled on drives with PTC
       protection, the power supply overcurrent protection may be
       tripped when powering up. If TERMPWR is not disabled on drives
       with fuse protection, the fuses will blow. TERMPWR on the
       internal SCSI bus is not connected to TERMPWR on the external
       SCSI bus. Additionally, the inner surface of the chassis is
       conductive, so drives must be mounted with insulating hardware.

       Note that the SPARCstation 10SX/10BSX was first supported by
       Solaris 2.3.

501-2474        4/30 (SPARCstation LX/ZX) motherboard 0M
       See 501-2031.

501-2495        4/75 (SPARCstation 2) motherboard 0M (270-1926) w/SPARC POWER uP
       Same as 501-1926, but with SPARC POWER uP processor upgrade.

501-2496        4/50 (SPARCstation IPX) motherboard 0M (270-1780) w/SPARC POWER uP
       Same as 501-1780, but with SPARC POWER uP processor upgrade.

501-2505        4/75 (SPARCstation 2) motherboard 0M (270-1638) w/SPARC POWER uP
       Same as 501-1638, but with SPARC POWER uP processor upgrade.

501-2506        4/75 (SPARCstation 2) motherboard 0M (270-1858) w/SPARC POWER uP
       Same as 501-1858, but with SPARC POWER uP processor upgrade.

501-2507        4/50 (SPARCstation IPX) motherboard 0M (270-1959) w/SPARC POWER uP
       Same as 501-1959, but with SPARC POWER uP processor upgrade

501-8028        3/E CPU 6U VME
       68020, 68881, Sun-3 MMU with eight hardware contexts. VME bus
       interface, 6U form factor.

       From left to right with component side up and connector side
       nearest you (normal top edge at left), the rear edge of the
       board has: eight LEDs (bit 0 to the right/bottom), a keyboard
       connector, two serial port connectors (B and A from left to
       right (top/bottom)), a switch to toggle between Diagnostic and
       Normal modes, and a reset switch.

       Connector pinouts and form factors are unknown, but are probably
       similar to other Sun-3 systems.

       There are a variety of jumper blocks. All locations are given
       with component side up and connector side toward you.

       J100 (single jumper between VME connectors, to right)
         Unused.

       J300 (block in center between VME connectors, pin 1 to left)
         1-2   Enable VME interrupt level 1                    JUMPED
         3-4   Enable VME interrupt level 2                    JUMPED
         5-6   Enable VME interrupt level 3                    JUMPED
         7-8   Enable VME interrupt level 4                    JUMPED
         9-10  Enable VME interrupt level 5                    JUMPED
         11-12 Enable VME interrupt level 6                    JUMPED
         13-14 Enable VME interrupt level 7                    JUMPED

       J500 (three-pin jumper between VME connectors, to left)
         1-2   CPU can reset other VME boards                  JUMPED
         2-3   Other VME boards can reset CPU                  UNJUMPED

       J501 (three-pin jumper between VME connectors, to left)
         1-2   CPU is the daisy chain driver                   JUMPED
         2-3   CPU is not the daisy chain driver               UNJUMPED

       J800 (block near serial port B, pin 1 nearest)
         1-2   unused
         3-4   VME arbiter                                     JUMPED
         5-6   enable video board interrupt                    JUMPED
         7-8   respond as VME slave                            JUMPED

       J801 *single jumper between VME connectors, to right)
         Jump to enable VME system clock.                      JUMPED

       Additional features of interest: the boot PROM is along the left
       edge, at location U300, by the battery. The IDPROM is in the
       near center, near J800 and the keyboard connector. There is a
       fuse by the keyboard connector and LEDs, documented as not field
       replacable.

       Note that 501-8028-07 or later is required to use the 501-8029
       3/E color framebuffer.

       Power requirements are +5V @ 8.1A, +12V @ 0.25A, and -12V @
       0.12A.

501-8035        4/E (SPARCengine 1) CPU VME 4M w/Weitek
501-8058        4/E (SPARCengine 1) CPU VME 4M w/o Weitek
501-8064        4/E (SPARCengine 1) CPU VME 16M w/Weitek
       VME bus interface, 6U form factor. One SBus slot.

       From left to right with component side up and connector side
       nearest you (normal top edge at left), the rear edge of the
       board has: a 50-pin SCSI-2 connector; an Ethernet connector; a
       keyboard/mouse connector; a serial port connector (port B,
       apparently DB9); eight LEDs (bit 0 to the left/top); a reset
       switch; and another serial port connector (port A, apparently
       DB9).

       Connector pinouts and form factors are unknown.

       There are a variety of jumper blocks. All locations are given
       with component side up and connector side toward you.

       J0301 (single jumper in middle)
        Jump to enable 20MHz clock.                            JUMPED

       J0801 (3-pin jumper in far middle)
        1-2    Use 4M parity memory                            JUMPED
        2-3    Disable 4M parity memory

       J1701 (single jumper in middle far edge)
        Jump if CPU is installed in VME slot 1.                JUMPED

       Additional features of interest: the boot PROM is on a
       daughtercard in the near left. The keyboard fuse F1101 and
       Ethernet fuse F0901 are near the keyboard connector and are not
       field replaceable. The SBus connector is along the far edge, by
       one of the VME connectors.

       Note that boot PROM version 1.4 does not support SunOS 4.1e, but
       versions 1.5 and 1.6 do.

       Note that boot PROM version 1.6 and daughtercard 500-8013-05 are
       installed on CPU 501-8035-12. This daughtercard is required if a
       customer-supplied PROM is used with the 1.6 boot PROM;
       customer-supplied PROMs will not function on daughter cards
       500-8013-04 or below, even if 1.6 boot PROMs are installed.

       Power requirements are +5V @ 5A, +12V @ 0.1A, and -12V @
       0.1A.


   SPARC modules
   -------------

370-1388        SM100 SPARC module Mbus
       Dual ROSS CPUs, 40MHz. For use in 4/6xx. "Option 1160".

       Install the first SM100 in the first Mbus slot.

       Solaris 2.1 (SunOS 5.1 requires 370-1388-08 or later.

       Power requirements are +5V @ 2.5A.

501-1889        SM30 SPARC module Mbus
       33MHz SuperSPARC. For use in SPARCstation 10, model 20 only
       (requires the 66MHz clock speed only available on the model 20).

       SunOS 4.1.3 is required.

       The SPARCstation 10 270-1733-08, -09, and -10 FABs require a
       crystal change to support this module.

       Power requirements are +5V @ 1.04A.

501-2218        SM20 SPARC module Mbus
       33MHz SuperSPARC. For use in SPARCstation 10, model 20 only
       (requires the 66MHz clock speed only available on the model 20).

       SunOS 4.1.3 is required.

       The SPARCstation 10 270-1733-08, -09, and -10 FABs require a
       crystal change to support this module.

       At location F0401 is a 5A fuse, P/N 150-2085.

       Power requirements are +5V @ 2.55A.

501-2219        SM40 SPARC module Mbus
       40MHz SuperSPARC. For use in SPARCstation 10 (but not model 20).

       SunOS 4.1.3 is required. Only one of these modules is supported
       in a system.

       The SPARCstation 10 clock should be set to 80MHz.

       At location F0401 is a 5A fuse, P/N 150-2085.

       Power requirements are +5V @ 2.86A.

501-2239        SM30 SPARC module Mbus
       36MHz SuperSPARC. For use in SPARCstation 10 (but not model 20).

       SunOS 4.1.3 is required.

       The SPARCstation 10 clock should be set to 72MHz.

       The SPARCstation 10 270-1733-08, -09, and -10 FABs require a
       crystal change to support this module.

       At location F0401 is a 5A fuse, P/N 150-2085.

       Power requirements are +5V @ 2.62A.

501-2258        SM41 SPARC module Mbus
       40MHz SuperSPARC. For use in SPARCstation 10 (but not model 20),
       4/6xx. "Option 1161".

       SunOS 4.1.3 is required. Solaris 2.2 (SunOS 5.2) is required if
       two of these modules are installed.

       The SPARCstation 10 clock should be set to 80MHz.

       Surface mounted fuse F0801 is not field-replaceable.

       Power requirements are +5V @ 4.28A.

501-2270        SM41 SPARC module Mbus
       40MHz SuperSPARC. For use in SPARCstation 10 (but not model 20),
       4/6xx. The 501-2270-04 and later are also supported in the
       SPARCserver 1000 and SPARCcenter 2000. "Option 1161".

       SunOS 4.1.3 is required. Solaris 2.2 (SunOS 5.2) is required if
       two of these modules are installed.

       The SPARCstation 10 clock should be set to 80MHz.

       Surface mounted fuse F0801 is not field-replaceable.

       Power requirements are +5V @ 4.28A.

501-2318        SM41 SPARC module Mbus
       33MHz SuperSPARC. For use in SPARCcenter 2000; used in early
       production systems only.

       The 66MHz control board 501-1671-04 is required; this module is
       not compatible with system control boards 501-1671-05, 501-2335,
       or 501-2406.

       Surface mounted fuse F0801 is not field-replaceable.

501-2352        SM51 SPARC module Mbus
       50MHz SuperSPARC. For use in SPARCstation 10 (but not model 20),
       4/6xx. "Option 1163".

       SunOS 4.1.3 is required. Solaris 2.2 (SunOS 5.2) is required if
       two of these modules are installed. The 4/6xx also requires boot
       ROM version 2.10 or later.

       The SPARCstation 10 clock should be set to 80MHz.

       Surface mounted fuse F0801 is not field-replaceable.

501-2351        SM51-2 SPARC module Mbus
       50MHz SuperSPARC. For use in SPARCcenter 2000.

       Solaris 2.2 (SunOS 5.2) is required. The SPARCcenter 2000
       requires boot PROM version 2.11 or later.

       Surface mounted fuse F0801 is not field-replaceable.

501-2358        SM40 SPARC module Mbus
       40MHz SuperSPARC. For use in SPARCstation 10 (but not model 20).

       SunOS 4.1.3 is required. Solaris 2.2 (SunOS 5.2) and boot PROM
       version 2.12 or later is required if two of these modules are
       installed.

       The SPARCstation 10 clock should be set to 80MHz.

       At location F0401 is a 5A fuse, P/N 150-2085.

       Power requirements are +5V @ 2.86A.

501-2359        SM41 SPARC module Mbus
       40MHz SuperSPARC. For use in SPARCstation 10 (but not model 20),
       4/6xx, SPARCcenter 2000. "Option 1161".

       SunOS 4.1.3 is required. Solaris 2.2 (SunOS 5.2) is required if
       two of these modules are installed.

       The SPARCstation 10 clock should be set to 80MHz.

       Surface mounted fuse F0801 is not field-replaceable.

       Power requirements are +5V @ 4.28A.

501-2360        SM51 SPARC module Mbus
       50MHz SuperSPARC. For use in SPARCstation 10 (but not model 20),
       4/6xx, SPARCserver 1000. "Option 1166".

       SunOS 4.1.3 is required. Solaris 2.2 (SunOS 5.2) is required if
       two of these modules are installed. The 4/6xx also requires boot
       ROM version 2.10 or later; the SPARCserver 1000 requires boot
       ROM version 2.11 or later.

       The SPARCstation 10 clock should be set to 80MHz.

       Surface mounted fuse F0801 is not field-replaceable.

501-2361        SM51 SPARC module Mbus
       50MHz SuperSPARC. For use in SPARCstation 10 (but not model 20),
       4/6xx. The 501-2361-01 is for Sun internal use only and is only
       tested for operation at room temperature.

       SunOS 4.1.3 is required. Solaris 2.2 (SunOS 5.2) is required if
       two of these modules are installed. The 4/6xx also requires boot
       ROM version 2.10 or later.

       The SPARCstation 10 clock should be set to 80MHz.

       Surface mounted fuse F0801 is not field-replaceable.

501-2387        SM51 SPARC module Mbus
       50MHz SuperSPARC. For use in SPARCstation 10 (but not model 20),
       4/6xx, SPARCserver 1000. The 501-2387-01 is for Sun internal use
       only and is only tested for operation at room temperature.

       SunOS 4.1.3 is required. Solaris 2.2 (SunOS 5.2) is required if
       two of these modules are installed. The 4/6xx also requires boot
       ROM version 2.10 or later; the SPARCserver 1000 requires boot
       ROM version 2.11 or later.

       The SPARCstation 10 clock should be set to 80MHz.

       Surface mounted fuse F0801 is not field-replaceable.

501-2431        SM52X dual SPARC module Mbus
       50MHz dual SuperSPARC. For use in SPARCstation 10 (but not model
       20).

       Solaris 2.3, with the Solaris 2.3 Supplement CD (704-4195-10),
       is required.

       The SPARCstation 10 clock should be set to 80MHz.

       Surface mounted fuses F1301 and F1401 are not field-replaceable.

       This module covers SBus slots 0 and 1.

501-2444        SM520 dual SPARC module Mbus
       50MHz dual SuperSPARC. For use as first dual processor in 4/6xx.

       Solaris 2.3, with the Solaris 2.3 Supplement CD (704-4195-10),
       is required. The 4/6xx also requires boot PROM version 2.10 or
       later.

       Install this module in the first Mbus slot.

501-2445        SM521 dual SPARC module Mbus
       50MHz dual SuperSPARC. For use as second dual processor in 4/6xx.

       Solaris 2.3, with the Solaris 2.3 Supplement CD (704-4195-10),
       is required. The 4/6xx also requires boot PROM version 2.10 or
       later.

       Install this module in the second Mbus slot. It covers Sbus
       slots 2 and 3.

            END OF PART III OF THE SUN HARDWARE REFERENCE

==============================================================================


PART IV
                               =======
                           BOARDS (cont'd)


BOARDS (cont'd)
===============

   Memory boards
   -------------

501-1013        1M Multibus
       One megabyte of zero-wait-state memory with parity, consisting
       of 144 64K x 1-bit chips. Connected to the processor by the
       Multibus P2 connector only; the Multibus P1 connector is used
       only for +5V and ground connections.

       Eight-position DIP switch U506 controls the address at which the
       board appears. The switches are all mutually exclusive. To make
       the board the first megabyte (starting at address 0), turn
       switch 1 ON and all others OFF. To make the board the second
       megabyte (starting at address 0x100000), turn switch 2 ON and
       all others OFF, etc. Via this method, the board may be set for
       any megabyte from the first to the eighth; the eighth is only
       available for memory when a monochrome display board is not
       present in the system.

       Power requirements are +5V @ 3A.

501-1020        2/50 1M VME
       The information on this and related boards is a bit spotty. The
       configurations shown below are only some of the possible
       configurations. Take with a grain of salt.

       J2100
         Unjumpered always.

       J2200   Base address
         1M:   3-4 jumpered, all others unjumpered

       J2201   Memory size
               1M @ 64Kx1      1M @ 256Kx1     2M @ 256Kx1     4M @ 256Kx1
               ----------      -----------     -----------     -----------
         1-2       UN              JU              UN              UN
         3-4       UN              JU              JU              UN
         5-6       JU              UN              UN              UN
         7-8       UN              JU              JU              JU
         9-10      JU              UN              UN              UN
         11-12     UN              UN              JU              JU
         13-14     JU              UN              UN              UN
         15-16     UN              UN              UN              JU

       J2202
         Not used.

501-1046        2/50 2M VME
       See 501-1020.

501-1047        2/50 4M VME
       See 501-1020. Note that this board cannot coexist with a 4M 2/50
       CPU, since the eighth megabyte is occupied by the monochrome
       framebuffer

501-1048        1M Multibus
       Laid out differently than 501-1013, but functionally the same.
       The address DIP switch is in a different location but is set in
       the same manner. See 501-1013.

501-1067        2/50 3M VME
       See 501-1020.

501-1079        2/50 0M VME
       See 501-1020. This board is intended as a host for the piggyback
       SCSI controller or Sky floating point processor.

501-1102        8M VME 3/2xx,3/4xx,4/2xx
       Eight megabytes of ECC memory consisting of 256K x 1-bit chips,
       with onboard refresh control.

       All locations are with component side up and the VME connectors
       away from you.

       There is a socket for a 220/270-ohm terminator pack 120-1613 at
       location F34 (U1203). Whether this terminator is installed
       depends on the machine the board is in, and the board's
       location.

       For a 3/2xx, the first memory board must be in VME slot 6 and
       must have the terminator pack installed. "Remove the terminator
       when expansion memory boards are installed in slots 2, 3, 4, and
       5" -- which is impossible because only four boards are
       supported, with the other three boards being in slots 2-4.
       Memory boards not in slot 6 should not have the terminator pack
       installed.

       For a 3/4xx or 4/2xx, the memory board in VME slot 1 should
       always have the terminator pack installed. If there are memory
       boards on both sides of the CPU, remove the terminator at U1411
       on the 3/4xx CPU and install a terminator pack on the memory
       board in slot 7.

       There are four jumpers.

       J0101   (block in far left corner)
         1-2   external clock                                  UNJUMPED
         3-4   ???                                             UNJUMPED

       J1101   Disable refresh (single jumper in far left)
         UNJUMPED

       J0301   probably not present

       J0302   near left corner (accessible through top of back edge,
               position 0 at bottom)
         0     first memory board
         1     second memory board
         2     third memory board
         3     fourth memory board

       There are five LEDs on the upper rear edge of the board. In
       normal operation, only the two green LEDs should be lit.

       UE      Uncorrectable error (when lit)          RED

       CE      Correctable error (when lit)            YELLOW

       DIS     CPU access disabled (when lit)          YELLOW

       CPU     CPU accessing memory                    GREEN
         This LED flickers because it is only lit when the CPU is
         actually accessing the memory on the board. If the LED is not
         flickering, that simply means you have more memory than you
         need at the moment -- the board is not being accessed
         significantly.

       REF     Refresh OK (when lit)                   GREEN
         If this LED is not lit, refresh has failed and the board
         should be repaired or replaced.

       Note that this board must be 501-1102-11 or later to use with
       the 3/4xx, the FPA, or the FPA+.

       Power requirements are 5V @ 12.3A.

501-1111        2M VME 3/75
       Two megabytes of memory and connectors for the piggyback SCSI
       board 501-1045.

       With the component side up and the VME connectors away from you,
       the D50 SCSI connector is in the near right corner, and the
       piggyback connectors are in the center and left middle. The
       memory is in the far right quadrant.

       Jumper J3101 at the left far edge should be jumped, and J3102
       just nearer should be unjumped.

       There are two eight-position DIP switches, each of which should
       have only one switch on, and all the rest off. Switch 1 is to
       the left. For this board, both should be set identically.

       U3118 and U3119
         1     not used
         2     start address 0x00200000 (is 3rd and 4th meg)
                cannot be used with 4M CPU boards
         3     start address 0x00400000 (is 5th and 6th meg)
         4     start address 0x00600000 (is 7th and 8th meg)
         5     start address 0x00800000 (is 9th and 10th meg)
         6     start address 0x00A00000 (is 11th and 12th meg)
         7     start address 0x00C00000 (is 13th and 14th meg)
                not documented for use with 2M CPU boards
         8     start address 0x00E00000 (is 15th and 16th meg)
                not documented for use with 2M CPU boards

       Power requirements are +5V @ 1.8A.

501-1121        0M VME 3/75
       Same as 501-1111, but with no memory -- it was just a host for
       the piggyback SCSI board.

501-1122        4M VME 3/75
       Basically the same as 501-1111, but four megabytes of memory and
       different switch settings.

       Jumper J3101 aqt the left far edge should be unjumped, and J3102
       just nearer should be jumped.

       U3118
         1     not used
         2     start address 0x00200000 (is 3rd through 6th meg)
         3     start address 0x00400000 (is 5th through 8th meg)
                not documented for 2M CPU boards
         4     start address 0x00600000 (is 7th through 10th meg)
                not documented for 4M CPU boards
         5     start address 0x00800000 (is 9th through 12th meg)
                not documented for 2M CPU boards
         6     start address 0x00A00000 (is 11th through 14th meg)
                not documented for 4M CPU boards
         7     start address 0x00C00000 (is 13th through 16th meg)
                not documented for 2M CPU boards
         8     not used

       U3119
         1     not used
         2     not used
         3     U3118 is 2
         4     U3118 is 3
         5     U3118 is 4
         6     U3118 is 5
         7     U3118 is 6
         8     U3118 is 7

       Power requirements are +5V @ 2.3A.

501-1131        2M VME 3/1xx
       See 501-1111. May be missing connectors for the piggyback SCSI
       board 501-1045, which was nominally used only on the 3/75.

501-1132        4M VME 3/1xx
       See 501-1122.

501-1232        4M Multibus
       Four megabytes of memory, with parity, consisting of 144 256K x 1
       chips, 120ns. 14-pin jumper at U1115, may control address. My board
       is the first 4M of RAM and pins 1-2, 3-4, 5-6, and 7-8 are jumped.

501-1254        32M VME 4/2xx
       Similar to 501-1102, but not compatible with 3/2xx (or 3/4xx?).
       See 501-1102, except:

       J0301   (single jumper in far right)
         UNJUMPED

       Power requirements are 5V @ 14A.

501-1298        8M XP cache 386i/150/250
       Up to sixteen 1M SIMMs (501-1424 or 501-1375) on an internal
       card with an edge connector.

       With component side up and the edge connector on the right,
       there are six jumpers in a block along the middle left edge.
       The left column is J1, J0, and J4 from far to near, and the
       right is J3, J3, and J5. "Jumpers on FAB 270-1298-01 do not
       affect system operation."

501-1317        16M 3U VME 4/330
       Up to sixteen 1M (501-1408, 501-1466, 501-1544, 501-1565, or
       501-1697) or 4M (501-1682) SIMMs on a 3U VME board for use in
       the 4/330 only.

       The memory comes in four banks, but has only two configurations:
       banks 0 and 1 filled, or all banks filled.

               VME connector
                               J0902
                               J0901

               -0-----U700------
               -0-----U701------
               -0-----U702------
               -0-----U703------
               -1-----U704------
               -1-----U705------
               -1-----U706------
               -1-----U707------

               -2-----U800------
               -2-----U801------
               -2-----U802------
               -2-----U803------
               -3-----U804------
               -3-----U805------
               -3-----U806------
               -3-----U807------

       J0901   SIMM count
         Jumped for eight SIMMs, unjumped for sixteen.

       J0902   SIMM size
         Jumped for 1M SIMMs, unjumped for 4M SIMMs.

       Power requirements are +5V @ 1.1A.

501-1325        4M XP cache 386i/150/250
       See 501-1298.

501-1333        32M VME 4/4xx
       Thirty-two megabytes of ECC memory with onboard refresh control.

       All locations are with component side up and the VME connectors
       away from you.

       There are four jumpers.

       J0101   Enable SET.RDY (single jumper in far left)              JUMPED

       J0301   32M/128M (single jumper in far middle)                  JUMPED

       J0302   32M/128M (single jumper in far middle)                  UNJUMPED

       J0310-J0315   (block in near left corner, accessible through top of
                      back edge, J0310 at bottom)
         0     first memory board (J0310 jumped)
         1     second memory board (J0311 jumped)
         2     third memory board (J0312 jumped)
         3     fourth memory board (J0313 jumped)
         4     fifth memory board (J0314 jumped)
         5     sixth memory board (J0315 jumped)

       There are five LEDs on the upper rear edge of the board. In
       normal operation, only the two green LEDs should be lit.

       UE      Uncorrectable error (when lit)          RED

       CE      Correctable error (when lit)            YELLOW

       DIS     CPU access disabled (when lit)          YELLOW

       CPU     CPU accessing memory                    GREEN
         This LED flickers because it is only lit when the CPU is
         actually accessing the memory on the board. If the LED is not
         flickering, that simply means you have more memory than you
         need at the moment -- the board is not being accessed
         significantly.

       REF     Refresh OK (when lit)                   GREEN
         If this LED is not lit, refresh has failed and the board
         should be repaired or replaced.

       Note that SunOS 4.0.3 only supports up to 256M of memory, and
       SunOS 4.1 (PSR A) requires the 4.1 PSR A Sun-4 PMEG patch to
       support over 256M of memory.

       Power requirements are +5V @ 15.6A.

501-1394        4M dynamic 386i/150
       Up to eight 1M SIMMs (501-1424) on an internal card with an edge
       connector.

       Note that CPU 501-1241-02 rev 03 or later is required for use
       with this board. CPU 501-1241-04 rev 01 or later is required for
       use with two or more of these boards.

501-1436        8M 3U VME 4/330
       See 501-1317.

501-1441        8M dynamic 386i/150
       See 501-1394.

501-1451        32M VME 3/4xx,4/2xx
       Similar to 501-1254, but compatible with 3/4xx (but not 3/2xx?).
       See 501-1254, except:

       Note that this board must be 501-1451-03 or later to use with
       the 501-1576 16M board.

501-1482        0M XP cache 386i/150/250
       See 501-1298, but can also use 501-1510 SIMMs.

501-1495        48M VME 4/3xx except 4/330
       Up to 48 1M or 4M SIMMs in six banks of eight.

       With component side up and VME connectors away from you:

               ----    ----    ----  VME connectors

               U2000   U1800   U1600
               bank4   bank2   bank0     Note that socket locations are
               U2007   U1807   U1607     silkscreened on the solder side
                                         (underside) of the board.
               U2100   U1900   U1700
               bank5   bank3   bank1
               U2107   U1907   U1707

       The three documented configurations are bank 0 only (8M or 32M),
       banks 0-2 (24M or 96M), or all six banks (48M or 192M).

       There are a variety of jumpers.

       J2304   BGR0 (leftmost of block in far left corner)             JUMPED

       J2305   BGR1 (left middle of block in far left corner)          JUMPED

       J2306   BGR2 (right middle of block in far left corner)         JUMPED

       J2307   BGR3 (rightmost of block in far left corner)            JUMPED

       J2308   IACK (single jumper in far left)                        JUMPED

       J2309   1M/4M (nearest of block in far right)
         Jump for 4M SIMMs, unjump for 1M SIMMs.

       J2310-J2312 CONF0-CONF2 (near middle to farthest of block in far right)

               banks filled    J2310       J2311       J2312
               ------------    -----       -----       -----
                    0          JUMPED      JUMPED      JUMPED
                   0-2         JUMPED      UNJUMPED    JUMPED
                   0-5         UNJUMPED    JUMPED      UNJUMPED

       Power requirements are +5V @ 4.3A (24M) or 5.3A (48M).

501-1563        24M VME 4/3xx except 4/330
501-1564        8M VME 4/3xx except 4/330
       See 501-1495.

501-1576        16M VME 3/4xx,4/2xx
       Similar to 501-1102 (but not compatible with 3/2xx?). See
       501-1102, except:

       J0301   (single jumper in far right)
         JUMPED

       Note that the 4/2xx requires boot PROM 3.0 or later when more
       than two of these boards are used.

501-1703        32M VME 4/3xx except 4/330
       See 501-1495.

501-1704        32M 3U VME 4/330
       See 501-1317.

501-1711        16M 3U VME 4/330
       See 501-1317.

501-1721        128M VME 4/4xx
       See 501-1333, except 128M of memory and:

       J0301   32M/128M (single jumper in far middle)                  UNJUMPED

       J0302   32M/128M (single jumper in far middle)                  JUMPED

       Note that the 4/4xx CPU requires boot PROM version 3.0 or later
       to support this board.

       Note that a correctable error on the sixth 128M board turns on
       the CE LED and turns off error logging. Reset power to clear
       this condition.

       Power requirements are +5V @ 13.7A.

501-1723        8M 3U VME 4/330
       See 501-1317.

501-1755        32M 3U VME 4/330
       See 501-1317.

501-1767        64M VME 4/6xx
       Up to one gigabyte of memory in four banks of sixteen 4M
       (501-1739 or 501-2460) or 16M (501-2060) SIMMs.

       With component side up and VME connectors away from you, the
       banks are:

               U????  BANK  LO/HI    U????  BANK  LO/HI        bits
       near    -----  ----  -----    -----  ----  -----        ----
        VME    U2008   3     bH1     U1605   0     3L0         24-31
               U2007   2     bL1     U1606   1     3H0         24-31
               U2006   3     bH0     U1607   0     3L1         24-31
               U2005   2     bL0     U1608   1     3H1         24-31
               U2004   3     aH1     U1601   0     2L0         16-23
               U2003   2     aL1     U1602   1     2H0         16-23
               U2002   3     aH0     U1603   0     2L1         16-23
               U2001   2     aL0     U1604   1     2H1         16-23
               U1908   3     9H1     U1505   0     1L0         8-15
               U1907   2     9L1     U1506   1     1H0         8-15
               U1906   3     9H0     U1507   0     1L1         8-15
               U1905   2     9L0     U1508   1     1H1         8-15
               U1904   3     8H1     U1501   0     0L0         0-7
               U1903   2     8L1     U1502   1     0H0         0-7
               U1902   3     8H0     U1503   0     0L1         0-7
               U1901   2     8L0     U1504   1     0H1         0-7

               U2208   3     fH1     U1805   0     7L0         56-63
               U2207   2     fL1     U1806   1     7H0         56-63
               U2206   3     fH0     U1807   0     7L1         56-63
               U2205   2     fL0     U1808   1     7H1         56-63
               U2204   3     eH1     U1801   0     6L0         48-55
               U2203   2     eL1     U1802   1     6H0         48-55
               U2202   3     eH0     U1803   0     6L1         48-55
               U2201   2     eL0     U1804   1     6H1         48-55
               U2108   3     dH1     U1705   0     5L0         40-47
               U2107   2     dL1     U1706   1     5H0         40-47
               U2106   3     dH0     U1707   0     5L1         40-47
               U2105   2     dL0     U1708   1     5H1         40-47
               U2104   3     cH1     U1701   0     4L0         32-39
               U2103   2     cL1     U1702   1     4H0         32-39
               U2102   3     cH0     U1703   0     4L1         32-39
               U2101   2     cL0     U1704   1     4H1         32-39
                         ^
                         | xx0 = LO byte, xx1 = HI byte

       The minimum configuration is sixteen SIMMs in bank 1.

       There is a large block of three-pin jumpers in the near center.
       From left to right (with pin 1 assumed nearest), they are:

       BANK 2,3 SIMMs
         SGL (1-2)     "single-sided" (4M) SIMMs
         DBL (2-3)     16M SIMMs

       BANK 2 INSTALLED
         OUT (1-2)     not installed
         IN  (2-3)     installed

       BANK 3 INSTALLED
         OUT (1-2)     not installed
         IN  (2-3)     installed

       BANK 3 SPEED
         100 (1-2)     100ns SIMMs
         80  (2-3)     80ns SIMMs (should always be 80ns?)

       BANK 2 SPEED
         100 (1-2)     100ns SIMMs
         80  (2-3)     80ns SIMMs (should always be 80ns?)

       BANK 1 SPEED
         100 (1-2)     100ns SIMMs
         80  (2-3)     80ns SIMMs (should always be 80ns?)

       BANK 0 SPEED
         100 (1-2)     100ns SIMMs
         80  (2-3)     80ns SIMMs (should always be 80ns?)

       BANK 1 INSTALLED
         OUT (1-2)     not installed
         IN  (2-3)     installed

       BANK 0 INSTALLED
         OUT (1-2)     not installed
         IN  (2-3)     installed (bank 0 must always be installed!)

       BANK 0,1 SIMMs
         SGL (1-2)     "single-sided" (4M) SIMMs
         DBL (2-3)     16M SIMMs

       Note that SunOS 4.1.2 or later is required to support this
       board.

       Power requirements are +5V @ 17.1A (0M).

501-1785        16M SIMM SPARCstation 10
       Power requirements are +5V @ 2.59A active, 0.075A standby.

501-1823        32M SBus 4/75 (SPARCstation 2) primary expansion memory
       This board connects to the SBus and to the CPU. Cable 530-1814
       connects J401 on this board to the SAX connector on the CPU
       board. It also has a secondary memory connector for the 501-1824
       secondary expansion memory.

       Power requirements are +5V @ 0.8A.

501-1824        32M SBus 4/75 (SPARCstation 2) secondary expansion memory
       This board connects to the SBus and the rest of the system only
       through the 501-1823 primary expansion memory. Hence, it cannot
       be installed without the 501-1823. Use standoff 240-1879 to mount
       it.

       Power requirements are +5V @ 0.8A.

501-1901        0M VME 4/6xx
       See 501-1767.

501-1930        64M SIMM SPARCstation 10
       Power requirements are +5V @ 2.59A active, 0.075A standby.

501-2001        2M NVSIMM SPARCstation 10
       Used to accelerate NFS writes to disks.

       Requires Solaris 2.2 and Prestoserve 2.4.1 software.

       Install the first NVSIMM in J0301 and the second in J0202.
       Either NVSIMMs or the SBus Prestoserve controller (370-1401) is
       supported.

       Jump J1001 (near the battery) to enable battery backup mode. The
       Panasonic BR3032 battery is not field-replaceable.

501-2197        1M NVSIMM SPARCserver 1000,SPARCcenter 2000
       Used to accelerate NFS writes to disks.

       Requires Solaris 2.2 and Prestoserver 2.4.1 software.

       The SPARCserver 1000 supports two banks of four NVSIMMs. The
       SPARCcenter 2000 supports one bank of eight NVSIMMs.

       There is a three-pin jumper in the lower right if the battery is
       facing you and on the left. Jump the right pair of pins to
       enable battery backup mode. Jump the left pair of pins to
       disable battery backup mode. The Panasonic BR2330 battery is not
       field-replaceable.

501-2273        16M SIMM SPARCstation 10
       See 501-1785.

501-8030        12M 6U VME 3/E
       Twelve megabytes of memory on a 6U VME card.

       With component side up and the VME connectors on the left, there
       is a jumper block (J100) in the lower left, with pin 1 nearest:

       J100
         1-2   unused, no pins
         3-4   enable 1st 4M bank                              JUMPED
         5-6   enable 2nd 4M bank                              JUMPED
         7-8   enable 3rd 4M bank                              JUMPED

       Power requirements are +5V @ 2A.

501-8031        4M 6U VME 3/E
       Four megabytes of memory on a 6U VME card.

       With component side up and the VME connectors on the left, there
       is a jumper block (J100) in the lower left, with pin 1 nearest:

       J100
         1-2   unused, no pins
         3-4   start address 0x00400000 (4th through 7th meg)
         5-6   start address 0x00800000 (8th through 11th meg)
         7-8   start address 0x00C00000 (12th through 16th meg)

       Only one pair of pins should be jumped.

       Power requirements are +5V @ 1.1A.

501-8036        16M 6U VME 4/E
       Up to sixteen megabytes of error-correcting memory with onboard
       refresh control.

       With component side up and VME connectors on the left, the banks
       are:

                       J502
                       J503
                       J504
                       J505
                       J506            LED505 (UCERR)
                       J501            LED504 (CERR)
                                       LED503 (REFRESH)
                                       LED502 (ACCESS)
                                       LED501 (DISABLED)

               bank0           bank2

               bank1           bank3

       The only documented configurations are bank 0 only (4M) and all
       banks (16M).

       J0501   "address range"                                         UNJUMPED

       J0502   board size
         Jumped for 16M, unjumped for 4M.

       J0503   board ID
         Jumped for 16M, unjumped for 4M.

       J0504   "hi/low mem" (actually sets base address)
       J0505   "1/4M DRAM" (actually sets base address)
       J0506   "address range"

           J0504       J0505       J0506       base address
           -----       -----       -----       ------------
           UNJUMPED    UNJUMPED    JUMPED      0x00000000
           UNJUMPED    JUMPED      JUMPED      0x01000000
           JUMPED      UNJUMPED    JUMPED      0x02000000
           JUMPED      JUMPED      JUMPED      0x03000000
           UNJUMPED    UNJUMPED    UNJUMPED    0x10000000
           UNJUMPED    JUMPED      UNJUMPED    0x11000000
           JUMPED      UNJUMPED    UNJUMPED    0x12000000
           JUMPED      JUMPED      UNJUMPED    0x13000000

         The 4M board extends from the base address to 0xnn3FFFF, and
         the 16M board extends to 0xnnFFFFF.

       The LEDs appear to to be:

               UCERR   uncorrectable error     probably shouldn't be lit
               CERR    correctable error       probably shouldn't be lit
               REFRESH refresh OK              probably should be lit
               ACCESS  memory being accessed   probably should flicker
               DISABLED CPU access disabled    probably shouldn't be lit

501-8042        4M 6U VME 4/E
       See 501-8036.

501-8060        0M combo with SBus slots 6U VME 4/E
       Up to sixteen SIMMs (of unknown size) and two SBus slots.

       With component side up, the banks are:


               S        B      B
               B        a      a
               u        n      n
               s        k      k
               2        1      3
                  J0401
               S
               B
               u        B      B
               s        a      a
               1        n      n
                        k      k
                        0      2

       SBus slot 1 can support a master or slave card; slot 2 can only
       support slave cards.

       J0401   enable memory
         Jump to enable, unjump to disable.

       Note that SunOS 4.0.3e requires the 4.0.3e SRX Feature tape to
       support this board.

555-1054        0M XP cache 386i/150/250
       See 501-1298.

555-1423        0M dynamic 386i/150
       See 501-1394.


   Video boards
   ------------

VIDEO STANDARDS

   MONO

       bwone

               Sun-1 monochrome framebuffer.

       bwtwo

               The standard monochrome framebuffer, found in everything
               from the first Sun-2 to desktop SPARCs, and the 386i as
               well. Standard resolution is 1152 x 900 and high
               resolution is 1280 x 1024; other resolutions (1024 x
               1024?) may exist.

   MG

  "MG" framebuffers are actually bwtwo.

   COLOR

  Note that the ROM monitor in a machine may or may not know about any
particular color framebuffer, depending on the revision of the ROM and
the age of the framebuffer standard. If the ROM does not know how to
detect/display on the particular color framebuffer you have installed,
it will be unable to display the normal ROM boot messages. This does not
affect OS support for the framebuffer; if you are willing to boot blind,
SunOS should find the framebuffer and start displaying on it normally.
The alternative is to get a more recent ROM or a different framebuffer.

       cgone

               Sun-1 color framebuffer. Can run SunWindows. The
               hardware occupies 16K of Multibus address space, by
               default starting at addresses 0xE8000 or 0xEC000 and
               using interrupt level 3.

       cgtwo

               VME-based color framebuffer found in Sun-2's and up. The
               hardware occupies 4M of VMEbus address space, by default
               starting at address 0x400000 and using interrupt level
               4.

       cgthree

               8-bit color framebuffer found in Sun-4's and Sun-386i's.

       cgfour

               8-bit color framebuffer, found in Sun-3's and Sun-4's,
               with a monochrome overlay plane and an overlay enable
               plane on the 3/110 and some 3/60 models. It is the
               onboard framebuffer for the 3/110. The SunOS driver
               implements ioctls to get and put colormaps; the 3/60
               models have an overlay plane colormap as well.

       cgfive

               Equivalent to cgtwo. Can be used alone or with the
               GP/GP+/GP2 accelerators.

       cgsix

               8-bit accelerated (GX) color framebuffer, found in
               Sun-3's and Sun-4's. The GX accelerator is a low-end
               accelerator designed to enhance vector and polygon
               drawing performance.

       cgeight

               24-bit color framebuffer, found in Sun-3's and Sun-4's,
               with a monochrome overlay plane and in some cases an
               overlay enable plane as well. Despite being 24-bit, the
               SunOS driver is documented as implementing ioctls to get
               and put colormaps.

       cgnine

               24-bit double-buffered VME-based color framebuffer, with
               two overlay planes and the ability to work with the GP2
               graphics accelerator board. In double-buffer mode, color
               resolution is reduced to 12 bits.

       cgtwelve

               24-bit double-buffered SBus-based color framebuffer,
               with graphics accelerator, an overlay plane and an
               overlay enable plane. Apparently can run in an 8-bit
               colormapped mode as well. In double-buffer mode, color
               resolution is reduced to 12 bits.

       cgfourteen

               From the manpage: "The cgfourteen device driver controls
               the video SIMM (VSIMM) component of the video and graphics
               subsystem of the SPARCstation 10SX. The VSIMM provides
               24-bit truecolor visuals in a variety of screen
               resolutions and pixel depths."


   ACCELERATORS

       gpone

               Generic name for Graphics Processor (GP), Graphics
               Processor Plus (GP+), and Graphics Processor 2 (GP2)
               boards. The hardware occupies 64K of VMEbus address space,
               starting at address 0x210000 by default and using interrupt
               level 4.

       taac

               The TAAC is somewhere between a general application
               accelerator and a graphics accelerator. It is "a
               very-long-instruction-world computation engine, coupled
               with an 8M memory array. This memory area can be used as
               a frame buffer or as storage for large data sets."

VIDEO BOARDS

   MONO

501-1003        monochrome video/keyboard/mouse TTL only Multibus
       From top to bottom on the rear edge of the board are a female
       DB-9 video connector, a header connector for the serial type 2
       keyboard, and a header connector for the serial Sun-2 mouse.

       This board must be placed in a slot in the Multibus P2
       section shared by the CPU. For backplane P/N 501-1090, it must
       be placed in slot 6 to terminate the P2 bus; for newer
       backplanes, it is usually placed in slot 6 anyway.

       DIP switch and jumper information for revisions -03 through -07:

       U100    DIP switch      video board address
         Eight-position DIP switch. All switches are mutually exclusive
         and they correspond to megabyte sections of the address space
         in the same way as the 501-1013 memory board. The first video
         board must be set to the eighth megabyte, which means switch
         eight must be ON and all others must be OFF.

       J1903   jumper          serial interrupt level select
         pins 13-14 jumped by default, all others unjumped

       J1904   jumper          video interrupt level select
         pins 9-10 jumped by default, all others unjumped

       Power requirements are +5V @ 4A.

501-1052        monochrome video/keyboard/mouse ECL/TTL Multibus
       Appears as device bwtwo*.

       From top to bottom on the rear edge of the board are a female
       DB-9 video connector, a header connector for the serial type 2
       keyboard, and a header connector for the serial Sun-2 mouse.

       This board must be placed in a slot in the Multibus P2
       section shared by the CPU. For backplane P/N 501-1090, it must
       be placed in slot 6 to terminate the P2 bus; for newer
       backplanes, it is usually placed in slot 6 anyway.

       Jumper information (note that pin 1 is to the right if you
       hold the board with the printing right-side up -- the same
       orientation as the ICs):

       J1600
         Bits read on startup to determine size of screen, either
         standard (1152 x 900) or 1000 x 1000. Pins 9 through 16 are
         not used and unjumped. Pins 3-4, 5-6, and 7-8 are always
         jumped. Pins 1-2 are jumped for the standard screen and
         unjumped for the 1000 x 1000 screen.

       J1801   Crystal Shunt                   JUMPED by default
         When jumped, the crystal signal is active; when unjumped, the
         crystal is disabled for A.T.E. testing.

       J1803   video levels
         To select TTL (very early Sun-2 monitors), jump pins 1-2 and
         5-6, unjump 3-4 and 7-8. To select TTL/ECL (all monochrome
         monitors since then, including any that can work with
         Sun-3's), jump 3-4 and 7-8 and unjump 1-2 and 5-6.

       J1804   Ground test point               UNJUMPED by default
         Used during troubleshooting only.

       J1903   Serial interrupt level select
                Located at N3, farther away from the bus connectors.
         pins 13-14 jumped by default, all others unjumped

       J1904   Video interrupt level select
                Located at N3, nearer the bus connectors.
         pins 9-10 jumped by default, all others unjumped

       Power requirements are +5V @ 4A.

501-1243        386i/150/250 cgthree color framebuffer 1152x900
       Appears as cgthree0. Has one video/keyboard connector. Video
       output is 1152 x 900, 66Hz vertical refresh, 61.8KHz horizontal
       sync.

       The keyboard fuse F1 is a 1A subminiature, 140-1027-01.

501-1244        386i/150/250 monochrome framebuffer 1152x900
       Appears as bwtwo0. Has one video/keyboard connector. Video
       output is 1152 x 900, 66Hz vertical refresh, 61.8KHz horizontal
       sync.

       The keyboard fuse F600 is a 1A subminiature, 140-1027-01.

501-1247        mgthree monochrome framebuffer ECL/TTL P4
       Supported in 3/60, 3/80, 3/4xx, 4/1xx, 4/3xx, and 4/4xx. Appears
       as bwtwo0. DB9 ECL/TTL video output, switchable between 1152 x
       900, 66Hz vertical refresh, 61.8KHz horizontal sync, and 1600 x
       1280.

       J5401   Resolution (single jumper near DB9)
         jumped        1600 x 1280
         unjumped      1152 x 900/auto select

       Note that the auto-select feature requires cables 530-1336 or
       530-1359 to operate. If using Motorola high-resolution monitor
       540-1427, it must be Motorola revision T or later for the
       auto-select feature to operate.

       Note that EEPROM/NVRAM location 0x1F should be set to 0x20 to
       use this framebuffer (see EEPROM/NVRAM Parameters).

       Power requirements (501-1247 only) are +5V @ 0.8A, -5V @ 1.2A.

501-1286        386i/150/250 cgthree color framebuffer 1024x768
       Appears as cgthree0. Has one video/keyboard connector. Video
       output is 1024 x 768, 66Hz vertical refresh, 53.6KHz horizontal
       sync.

       The keyboard fuse F600 is a 1A subminiature, 140-1027-01.

501-1352        386i/150/250 GXi color framebuffer.
       Appears as cgfive0. Has a 21W4 connector. Video output is 1152 x
       900, 66Hz vertical refresh, 61.8KHz horizontal sync.

       Takes up to four 1M SIMMs at locations J1000-J1003. "1MB SIMM
       modules are not installed [...] on the 2D GXi board."

       The keyboard fuse F1 is a 1A subminiature, 140-1027-01.

       Note that Openwindows does not support the GXi.

       The 386i CPU requires boot ROM version 4.3 or later.

501-1397        386i/150/250 SunVGA/EGA ISA
       Apparently an ISA-bus board which simulates an EGA or VGA
       display for DOS programs running on the 386i.

       S1      ISA-bus address (block, switch 1 nearest daughterboard)
           By default, set for address 0xA000.
         1     ON
         2     OFF
         3     ON
         4     OFF

       Note that this board requires a color framebuffer and SunOS
       4.0.1.

501-1402        mgfour monochrome framebuffer ECL/TTL/Analog P4 3/80 backpanel
       Supported in 3/80, 3/4xx, 4/3xx, and 4/4xx. Appears as bwtwo0.
       DB9 ECL/TTL or 13W3 analog video output, 1152 x 900, 66Hz
       vertical refresh, 61.8KHz horizontal sync.

       Power requirements are +5V @ 3.3A.

501-1433        386i/150/250 monochrome framebuffer 1024x768
       Appears as bwtwo0. Has one video/keyboard connector. Video
       output is 1024 x 768, 76Hz vertical refresh, 63.9KHz horizontal
       sync.

       The keyboard fuse F600 is a 1A subminiature, 140-1027-01.

       The 386i CPU requires boot ROM version 4.4 or later.

501-1567        386i/150/250 monochrome framebuffer 1152x900
       See 501-1244.

501-1568        386i/150/250 monochrome framebuffer 1024x768
       See 501-1433.

501-1637        mgthree monochrome framebuffer ECL/TTL P4 3/80 backpanel
       See 501-1247. Requires 501-1483 DC to DC power converter.

501-8020        3/E monochrome framebuffer ECL/TTL 6U VME
       Appears as device bwtwo0. DB9 ECL/TTL video output, 1152 x 900,
       66Hz vertical refresh, 61.8KHz horizontal sync.

       Power requirements are +5V @ 3A.


   COLOR

501-0289        cgone(?) color framebuffer Multibus
       Jumper information:

       J1
         1-2   VODD                    JUMPED by default
         3-4   VRESET                  JUMPED by default
         5-6   SYSCP1                  JUMPED by default
         7-8   HRESET                  JUMPED by default
         9-10  STATE 11                JUMPED by default

       J2
         1-2   M0                      JUMPED by default
         3-4   M1                      JUMPED by default
         5-6   M2                      JUMPED by default
         7-8   M3                      JUMPED by default
         9-10  M4                      JUMPED by default
         11-12 M5                      JUMPED by default

       J3              Color board interrupt level
         pins 5-6 jumped by default, all others unjumped

       J4              Invert BBUS.A0
         1-2                           JUMPED by default
         3-4                           UNJUMPED by default

       J5              Ground the P2 bus
         All pins (1-2, 3-4, 5-6, 7-8, 9-10, 11-12) jumped by default.

       Power requirements are +5V @ 6A and -5V @ 1.2A.

501-1014        cgtwo (2160) color framebuffer VME
       Initially designed for the 2/130 and 2/160, also supported in
       the 3/1xx, 3/2xx, and 3/4xx. Appears as device cgtwo*.

       All locations are with component side up and VME connectors away
       from you.

       Output resolution 1152 x 900, 66Hz vertical refresh, 61.8KHz
       horizontal sync. Four BNC connectors (sync, blue, green, and
       red, with red nearest the right edge/bottom).

       There are three jumpers.

       J100    base address (block in far left corner, pins 3 and 4 on
                left side farthest to nearest, pins 1 and 2 on right
                side farthest to nearest)
           Set base address to 0x400000:
         1-3   hardwired on fabs 270-1014-02/03, jumped on fabs
               270-1014-05/06.
         3-4   hardwired

       J200    sense bits (block in far right corner, pin 1 to right)
         1-2   sense bit 0                                     UNJUMPED
         3-4   sense bit 1                                     UNJUMPED
         5-6   sense bit 2                                     UNJUMPED
         7-8   sense bit 3                                     UNJUMPED

       J1700   enable clock (single jumper in right middle)
         Jumped by default.

       Power requirements are +5V @ 15A, -5V @ 5.7A, and -12V @ 0.2A.

501-1058        GB graphics buffer VME
       Initially designed for the 2/130 and 2/160, also supported in
       the 3/160, 3/180, 3/2xx, 3/4xx, 4/150, 4/2xx, 4/3xx. Used with
       the 501-1055 GP graphics processor or the 501-1139 GP+ graphics
       processor. Has no device name.

       All locations are with component side up and VME connectors away
       from you.

       There are six jumpers.

       J1      GND test point (single jumper in near left corner)      UNJUMPED

       J2      GND test point (single jumper in far left)              UNJUMPED

       J3      Manual reset test point (single jumper in left middle)  UNJUMPED

       J4      buffer size (block in left middle, pins 4 and 1 nearest L/R)
         2-3   Jumped for 2M buffer.

       J5-J8   Refresh interval test points (block in far right, J5 nearest)
         J5    bit 0, hardwired.
         J6    bit 1, hardwired.
         J7    bit 2, hardwired.
         J8    bit 3, hardwired.

       J9      GND test point (single jumper in near right corner)     UNJUMPED

       J10     GND test point (single jumper in far right corner)      UNJUMPED

       Note that the 2/160 power supply requires RC network
       540-1300-01.

       Power requirements are +5V @ 2.1A.

501-1089        cgthree (3160) color framebuffer double-buffered VME
       Initially designed for the 3/160, also supported in the 3/150,
       3/180, 3/2xx, 3/4xx, 4/1xx, 4/2xx, and 4/3xx. Appears as device
       cgthree*.

       All locations are with component side up and VME connectors away
       from you.

       Output resolution is 1152 x 900, 66Hz vertical refresh, 61.8KHz
       horizontal sync. Five BNC connectors ("24-bit", sync, blue,
       green, red, with red nearest the right edge/bottom).

       There are a variety of jumpers.

       J100    (single jumper between sync and blue connectors)
         "Factory set".

       J101    (single jumper between blue and green connectors)
         "Factory set".

       J102    (single jumper near "24-bit" connector)
         Jumped.

       J300    (block in far middle, pin 1 to left)
         All pins unjumped by default.

       J301    VME address (block in far left, pin 1 to left)
           Default address 0x400000.
         1-2   unjumped
         3-4   hardwired
         5-6   unjumped
         7-8   unjumped
         9-10  hardwired
         11-12 unjumped
         13-14 hardwired
         15-16 hardwired

       J302    (small block in far left)
         1-2   unjumped
         3-4   hardwired

       J303    (small block in far left, pin 1 to right)
         1-2   hardwired
         3-4   unjumped

       J400    (block in middle left edge, pin 1 to left)
           Resolution 1152 x 900:
         1-2 (J8)      unjumped
         3-4 (J9)      unjumped
         5-6 (J10)     unjumped
         7-8 (J11)     unjumped
         9-10 (J12)    VME port and GP port                    UNJUMPED
         11-12 (J13)   VME port fast read                      JUMPED
         13-14 (J14)   unjumped
         15-16 (J15)   unjumped

       J600    (single jumper between green and red connectors)
         "Factory set."

       J601    (single jumper in middle near edge)
         "Factory set."

       Note that SunOS 3.5 (for Sun-3's) or SunOS 4.0 (for Sun-4's) is
       required to support the double-buffer features.

       Power requirements are +5V @ 8.3A, -5V @ 3.1A, +12V @ 0.1A, -12V
       @ 0.2A.

501-1116        cgthree (3160) color framebuffer single-buffered VME
       See 501-1089, but single-buffered.

       For 501-1116-05 and earlier, jumper J400 pins 11-12 (J13) is
       unjumped.

       Power requirements are +5V @ 8.2A, -5V @ 2.9A, +12V @ 0.1A, -12V
       @ 0.2A.

501-1210        3/60 cgfour color framebuffer P4
       Appears as devices cgfour0 and bwtwo1. Supported only in the
       3/60.

       4BNC connectors (sync, blue, green, and red, from left to right
       with component side up and connectors nearest), 1152 x 900, 66Hz
       vertical refresh, 61.8KHz horizontal sync.

       Note that EEPROM/NVRAM location 0x1F should be set to 0x12 to
       use this framebuffer as the console.

       Power requirements are +5V @ 2.6A.

501-1248        cgfour color framebuffer P4
       Appears as devices cgfour0 and bwtwo1. Supported in the 3/60,
       3/80, 3/4xx, 4/1xx, 4/3xx, and 4/4xx.

       4BNC connectors (sync, blue, green, and red, from left to right
       with component side up and connectors nearest), 1152 x 900, 66Hz
       vertical refresh, 61.8KHz horizontal sync.

       J700    Enable clock (single jumper in corner)
         JUMP to enable clock.

501-1267        cgfive color framebuffer VME
       Supported in the 3/150, 3/160, 3/180, 3/2xx, 3/4xx, 4/1xx,
       4/2xx, 4/3xx, and 4/4xx. Appears as device cgtwo* (?).

       All locations are with component side up and VME connectors away
       from you.

       Output resolution is 1152 x 900, 66Hz vertical refresh, 61.8KHz
       horizontal sync. Four BNC connectors (sync, blue, green, red,
       with red nearest the right edge/bottom).

       There are five switch blocks and two jumpers:

       SW300   VME address high (switch block in far edge left @ D37,
                switch 1 to left)
         VME address lines A24 (switch 1) to A31 (switch 8). All OFF by
         default.

       SW301   VME address low etc. (switch block in far left corner @
                B34, switch 1 to left)
         1     VME A22 decode                                          OFF
         2     VME A23 decode                                          ON
         3     AM4 decode                                              OFF
         4     AM5 decode                                              OFF
         5     2M H/L decode                                           ON
         6     2/4M A21 decode                                         OFF
         7     2/4M X.A21 decode                                       ON
         8     2/4M X.A21                                              ON

       SW302   Decoding (switch block in far edge left @ D36, just
                nearer than SW300, switch 1 to left)
         1     Control space 2/4M decode                               ON
         2     Control space 2/4M decode                               OFF
         3     24/32-bit address decode (24-bit)                       OFF
         4     24/32-bit address decode (24-bit)                       ON
         5-8   unused

       SW400   Status bits (switch block in left edge middle @ A20,
                switch 1 to left)
         1     status bit 8 (resolution)                               OFF
         2     status bit 9 (resolution)                               OFF
         3     status bit 10 (resolution)                              OFF
         4     status bit 11 (resolution)                              OFF
         5     status bit 12 (extra registers)                         ON
         6     status bit 13 (fast read)                               ON
         7     status bit 14 (RFU)                                     OFF
         8     status bit 15 (RFU)                                     OFF

       SW3300  Board select/P2 (switch block in far right @ H34, switch
                1 to left)
         1     board 0                                                 ON
         2     board 1                                                 OFF
         3     board 2                                                 OFF
         4     board 3                                                 OFF
         5     P2 bus enable. ON when used with the GP2 graphics
                accelerator, OFF otherwise.
         6-8   unused

       J600    Video settings (block in near left, pin 1 to left)
         1-2   V reset                                         JUMPED
         3-4   Ext vertical blank output to ground             UNJUMPED
         5-6   Ext display buffer A output to ground           UNJUMPED
         7-8   unused                                          UNJUMPED

       J601    Video settings (block in near left, to left of J600, pin
                1 to left)
         1-2   Green sync                                      JUMPED
         3-4   Green sync                                      UNJUMPED
         5-6   Sync                                            UNJUMPED
         7-8   Sync                                            JUMPED

       Note that this board can be used with 4/3xx CPUs 501-1316-03 or
       later only (don't know about 501-1742).

       Note that this board must be 501-1267-05 or later to use with
       the 501-1539 ISP-80 IPI disk controller.

       Power requirements are +5V @ 8.8A, -5V @ 3.2A, +12V @ 0.2A, -12V
       @ 0.1A.

501-1319        cgthree (3160) color framebuffer 1024x1024 VME
       See 501-1089, but single-buffered (?) and resolution is 1024 x
       1024 and jumper J400 pins 1-2 (J8) is jumped.

501-1371        cgeight color framebuffer P4
       Supported in the 3/60 (?), 3/4xx, 4/1xx, and 4/3xx. Appears as
       device cgeight0.

       4BNC connector. 1152 x 900, 66Hz vertical refresh, 61.8KHz
       horizontal sync.

       Note that SunOS 4.0 CG8 (not upgradeable to 4.0.1), or 4.0.3 or
       later is required. The cgeight is not supported under
       OpenWindows version 2.

       Note that EEPROM/NVRAM location 0x1F should be set to 0x20 to
       use this framebuffer as the console (see EEPROM/NVRAM
       Parameters).

       Note that this board must be 501-1371-04 or later to use with
       3/4xx (501-1299/1550) or 4/3xx (501-1381/1899) CPUs.

       Power requirements are +5V @ 5.5A.

501-1374        cgsix color framebuffer P4
       Supported in the 3/60, 3/80, 3/4xx, 4/1xx, 4/3xx, and 4/4xx.
       Appears as device cgsix0.

       All locations are with component side up and 13W3 connector
       toward you.

       13W3 connector. 1152 x 900, 66Hz vertical refresh, 61.8KHz
       horizontal sync.

       J100    Monitor ID (single jumper in far right)         UNJUMPED

       J500    (single jumper in left middle)                  JUMPED
         "V.Y. CLK memory control."

       J501    (single jumper in left middle, farther than J500) UNJUMPED
         "OSC 2 CLK."

       J900    (three-pin jumper in far left, pin 1 farthest)
         1-2
         2-3   1152 x 900 on 270-1532 fab.

       Note that the 3/60, 4/1xx, and 4/3xx require boot PROM version
       3.0 or later to use this framebuffer as the console. Also note
       that EEPROM/NVRAM location 0x1F should be set to 0x20 to use
       this framebuffer as the console (see EEPROM/NVRAM Parameters).

       Note that SunOS 4.0.3 or later is required.

       Power requirements are +5V @ 3.5A.

501-1434        cgine color framebuffer VME
       Supported in the 3/2xx, 3/4xx, 4/150, 4/2xx, 4/3xx, and 4/4xx.
       Appears as device cgnine*.

       All locations are with component side up and VME connectors away
       from you.

       Output resolution is 1152 x 900, 66Hz vertical refresh, 61.8KHz
       horizontal sync. One 13W3 connector.

       There are three switch blocks and two jumpers:

       SW1     VME address (switch block in far left, S0100, switch 1
                to left)
         VME address lines A24 (switch 1) to A31 (switch 8). All ON by
         default except switch 4 (A27), which is OFF.

       SW2     (switch block in far left, S0101, switch 1 to left)
         1     unused
         2     unused
         3     Flag                                                    ON
         4     unused
         5     A32 mode                                                OFF
         6     AM4                                                     ON
         7     AM5                                                     ON
         8     A23 mode                                                ON

       SW3     Board select/P2 (switch block in far left, S0700, switch
                1 to left)
         1     P2 bus enable. ON when used with the GP2 graphics
                accelerator, OFF otherwise.
         2     board 3                                                 OFF
         3     board 2                                                 OFF
         4     board 1                                                 OFF
         5     board 0                                                 ON
         6-8   unused

       J1800   Video settings (block in near left)
         1-2   Display                                         UNJUMPED
         3-4   Video blank                                     UNJUMPED
         5-6   unused                                          UNJUMPED
         7-8   unused                                          UNJUMPED

       J601    Video settings (block in near right, pin 1 to left)
         1-2   Green sync                                      UNJUMPED
         3-4   Sync                                            JUMPED

       Note that this board can be used with GP2 boards 501-1268-07 or
       later only, and is not compatible with the 501-1055 GP or
       501-1139 GP+ boards.

       Note that this board must be 501-1434-04 or later for use with
       the 501-1249 Xylogics 7053 SMD disk controller.

       Note that this board is not supported under OpenWindows version
       2 and possibly 3.

       Power requirements are +5V @ 14.6A.

501-1443        cgfour color framebuffer P4 3/80 backpanel
       As 501-1248, but with 3/80 backpanel and 13W3 instead of 4BNC.

       Power requirements are +5V @ 3.8A.

501-1505        cgsix color framebuffer P4 3/80 backpanel
       As 501-1374, but:

       Power requirements are +5V @ 4.9A.

501-1518        cgeight color framebuffer P4
       As 501-1371, but with 13W3 connector instead of 4BNC.

501-1532        cgsix color framebuffer P4
       See 501-1505.

501-1537        VX Visualization Accelerator/Super Frame Buffer VME
       Part of a two-board set tied together with the 501-1596
       frontplane connector. See 501-1538 (MVX) under Accelerators,
       below. Supported in the 4/330, 4/370, 4/390, 4/4xx.

       All locations are with component side up and VME connectors away
       from you.

       There are three switch blocks. In the far rightish, by switches
       S0101 and S0102, is the "Fcode PROM". Along the middle left edge
       is an 80MHz crystal. In the near rightish are four crystals,
       12.3MHz, 117MHz, 92.9MHz, and 135MHz. Along the rear edge, from
       left to right (top to bottom) are: the frontplane connector,
       a stereo out connector, a video output LED, a sync in connector,
       the 13W3 video connector, and a reset button.

       The video output is either 1152 x 900, 66Hz vertical refresh,
       61.8KHz horizontal sync, or 1280 x 1024, 67Hz vertical refresh,
       71.7KHz horizontal sync.

       S0101   Interrupt request (block in far edge right, switch 1 to
                left, "Up" away)
         1     request bit 2                                   UP
         2     request bit 1                                   DOWN
         3     request bit 0                                   DOWN
         4     VMRQ                                            UP

       S0102   VME Address (block in far edge middle, switch 1 nearest)
         1     A31                                             ON
         2     A30                                             ON
         3     A29                                             OFF
         4     A28                                             OFF
         5     A27                                             ON
         6     A26                                             ON
         7     A25                                             ON
         8     unused

       S0301   VX Bus Address (block in middle right, switch 1 to left)
         1     unused
         2     unused
         3     A26                                             ON
         4     A27                                             ON
         5     A28                                             ON
         6     A29                                             ON
         7     A30                                             ON
         8     A31                                             ON

       Note that the MVX is always to the right of the VX. Also, when
       attaching the frontplane connector, tighten the four screws in
       the order: upper right, lower right, upper left, and lower left.
       Turn each screw no more than two turns at a time.

       Note that 4/3xx and 4/4xx CPUs require boot PROM version 4.1.1 or
       later when the VX is used as the system console. Also,
       EEPROM/NVRAM locations 0x1F and 0x60C-0x613 must be configured
       (see the EEPROM/NVRAM Parameters section).

       Note that at least SunOS 4.1.1 is required.

       Note that only frontplane connector 501-1596-02 should be used,
       not 501-1596-01.

       Power requirements are +5V @ 14A, -5V @ 1.45A.

501-1577        cgeight color framebuffer P4 3/80 backpanel
       As 501-1518, but with 3/80 backpanel.

       Power requirements are +5V @ 4.8A.

501-8029        3/E color framebuffer cgtwo 6U VME
       Appears as device cgtwo*.

       All locations are with component side up and VME connectors away
       from you.

       4BNC (blue, green, red, and sync, from left to right). Video
       output is 1152 x 900, 66Hz vertical refresh, 61.8KHz horizontal
       sync.

       J100    Base address (block in far left, pin 1 to left)
           By default, set for base address 0xFF400000.
         1-2   JUMPED
         3-4   UNJUMPED
         5-6   JUMPED
         7-8   UNJUMPED

       J700    Clock enable (single jumper in near middle)
         JUMP to enable clock.

       Note that SunOS 3.5 or later is required.

       Note that this board can be used with 3/E CPU 501-8028-07 or
       later.

       Power requirements are +5V @ 4A.


   ACCELERATORS

501-1055        GP graphics processor VME
       Graphics accelerator. Originally designed for the 2/130 and
       2/160, also supported in the 3/160, 3/180, 3/2xx, 3/4xx, 4/150,
       4/2xx, and 4/3xx. Appears as device gpone0a-d. Used with the
       501-1014 cgtwo or 501-1267 cgfive video boards and optionally
       the 501-1058 GB graphics buffer.

       All locations are with component side up and VME connectors away
       from you.

       There is a set of LEDs in the near left (upper) corner.

       There are a variety of jumpers and DIP switches:

       J1-J8   GP board ID (block in middle left edge, J1 nearest)
         J1    ID bit 3                                        UNJUMPED
         J2    ID bit 4                                        JUMPED
         J3    ID bit 2                                        JUMPED
         J4    ID bit 5                                        UNJUMPED
         J5    ID bit 1                                        UNJUMPED
         J6    ID bit 6                                        UNJUMPED
         J7    ID bit 0. Jumped if GB graphics buffer is present,
               unjumped otherwise.
         J8    ID bit 7                                        UNJUMPED

       J9      GND test point (single jumper in far left corner)
         Hardwired.

       J10     GND test point (single jumper in near left corner)
         Hardwired.

       J11     PP halt test point (single jumper in far left)
         Hardwired.

       J12     VP halt test point (single jumper in far left)
         Hardwired.

       J13     Manual reset test point (single jumper in far left)
         Hardwired.

       J14     Main clock connect (single jumper in far left)  JUMPED

       J15     VP free-running CLK test point (single jumper   UNJUMPED
               in middle farish leftish)

       J16     PP free-running CLK test point (single jumper   UNJUMPED
               in middle farish leftish)

       J17     GND test point (single jumper in far right)
         Hardwired.

       J18     GND test point (single jumper in near right)    UNJUMPED

       SW      (block in left far edge, SW1 nearest)
          Turn switch off to match a 1-bit, on to match a 0-bit.
          Set for default address of 0x210000:
         SW1   VME address bit 17                              ON
         SW2   VME address bit 16                              OFF
         SW3   VME address bit 23                              ON
         SW4   VME address bit 22                              ON
         SW5   VME address bit 21                              OFF
         SW6   VME address bit 20                              ON
         SW7   VME address bit 19                              ON
         SW8   VME address bit 18                              ON

       Note that the 2/160 power supply requires RC network
       540-1300-01.

       Power requirements are +5V @ 16.4A.

501-1139        GP+ graphics processor VME
       Graphics accelerator. Originally designed for the 2/130 and
       2/160, also supported in the 3/160, 3/180, 3/2xx, 3/4xx, 4/150,
       4/2xx, and 4/3xx. Appears as device gpone0a-d. Used with the
       501-1014 cgtwo or 501-1267 cgfive video boards and optionally
       the 501-1058 GB graphics buffer.

       All locations are with component side up and VME connectors away
       from you.

       There is a set of LEDs in the near left (upper) corner.

       There are a variety of jumpers and DIP switches:

       J1-J8   GP board ID (block in middle left edge, J1 nearest)
         J1    ID bit 3                                        UNJUMPED
         J2    ID bit 4                                        JUMPED
         J3    ID bit 2                                        JUMPED
         J4    ID bit 5                                        UNJUMPED
         J5    ID bit 1                                        UNJUMPED
         J6    ID bit 6                                        UNJUMPED
         J7    ID bit 0. Jumped if GB graphics buffer is present,
               unjumped otherwise.
         J8    ID bit 7                                        UNJUMPED

       J9      GND test point (single jumper in far left corner)
         Hardwired.

       J10     GND test point (single jumper in near left corner)
         Hardwired.

       J11     PP halt test point (single jumper in far left)
         Hardwired.

       J12     VP halt test point (single jumper in far left)
         Hardwired.

       J13     Manual reset test point (single jumper in far left)
         Hardwired.

       J14     Main clock connect (single jumper in far left)  JUMPED

       J15     VP free-running CLK test point (single jumper   UNJUMPED
               in middle farish leftish)

       J16     PP free-running CLK test point (single jumper   UNJUMPED
               in middle farish leftish)

       J17     GND test point (single jumper in far right)
         Hardwired.

       J18     GND test point (single jumper in near right)    UNJUMPED

       SW      (block in left far edge, SW1 nearest)
          Turn switch off to match a 1-bit, on to match a 0-bit.
          Set for default address of 0x210000:
         SW1   VME address bit 17                              ON
         SW2   VME address bit 16                              OFF
         SW3   VME address bit 23                              ON
         SW4   VME address bit 22                              ON
         SW5   VME address bit 21                              OFF
         SW6   VME address bit 20                              ON
         SW7   VME address bit 19                              ON
         SW8   VME address bit 18                              ON

       Note that the 2/160 power supply requires RC network
       540-1300-01.

       Power requirements are +5V @ 14.6A.

501-1268        GP2 graphics processor VME
       Graphics accelerator. Supported in the 3/150, 3/160, 3/180,
       3/2xx, 3/4xx, 4/150, 4/2xx, 4/3xx, and 4/4xx. Appears as device
       gpone0a-d. Used with the 501-1267 cgfive or 501-1434 cgnine video
       boards. Not compatible with the 501-1058 GB graphics buffer.

       All locations are with component side up and VME connectors away
       from you.

       There is one switch block:

       SW      (switch block in far edge left @ K3 (U1601), switch 1 to
                left)
         1     A18 address decode                                      OFF
         2     A19 address decode                                      ON
         3     A20 address decode                                      ON
         4     A21 address decode                                      OFF
         5     A22 address decode                                      ON
         6     A23 address decode                                      ON
         7     unused                                                  ON
         8     unused                                                  ON

       Note that additional software is required for SunOS 3.x (first
       available for SunOS 3.5 for Sun-3's and 3.2 for Sun-4's).
       Support is built into SunOS 4.x and later.

       Note that this board must be 501-1268-07 or later to use with
       the 501-1434 cgnine framebuffer.

       Power requirements are +5V @ 21.1A.

501-1383        TAAC-1 application accelerator, POP board VME
       One board of a two-board set, see 501-1447.

       All locations are with component side up and VME connectors away
       from you.

       From left to right (top to bottom) on the rear edge are: a reset
       switch, 4BNC video in (sync, red, green, blue), and 4BNC video
       out (sync, red, green, blue).

501-1447        TAAC-1 application accelerator, DFB board VME
       One board of a two-board set, see also 501-1383. Supported in
       the 3/160, 3/180, 3/2xx, 3/4xx, 4/150, 4/2xx, 4/360-4/390, and
       4/4xx. Appears as device taac0. It is somewhere between a general
       applications accelerator and a graphics accelerator, being a
       very-long-instruction-word computation engine with video I/O. It
       requires a bunch of special software, including its own separate C
       compiler and libraries.

       All locations are with component side up and VME connectors away
       from you.

       Toward the left side (top) of the rear edge is a reset switch.

       There are five jumper blocks and (on some versions) one switch
       block.

       JB231   (block, four rows by thirteen columns, in far left, row
                A nearest, column 1 at left)
         1     B-C JUMPED
         2-7   hardwired on board revisions without switch A26, empty
                on board revisions with switch A26.
         8     BGIN, C JUMPED to 9B
         9     empty (but see 8 above)
         10    VMBG IN/OUT 0, B-C jumped
         11    VMBG IN/OUT 1, B-C jumped
         12    VMBG IN/OUT 2, B-C jumped
               enable 50MHz clock, D jumped to 13D
         13    VMBG IN/OUT 3, B-C jumped
               see also 12 above

       JB201-JB204     (blocks, two rows by two columns, in near left,
                JB201 nearest, row B nearest)
         Hardwired for 16K x 4K RAM:
               JB201 A right, JB201 A left, JB202 B left, JB202 A left
               JB203 B right, JB203B left, JB203A left
               JB204 B right, JB204 A left

       Switch A26      VME address (switch block in far left, switch 1
                to left)
           Set to base address 0x28000000 by default. 4/150 needs base
           address 0xF8000000. Set switch OFF to match a 1-bit, ON to
           match a 0-bit.
         1     A25                                     ON
         2     A26                                     ON
         3     A27                                     OFF
         4     A28                                     ON (4/150 OFF)
         5     A29                                     OFF
         6     A30                                     ON (4/150 OFF)
         7     A31                                     ON (4/150 OFF)
         8     unused?

       Note that the TAAC-1 is not compatible with the 501-1014 cgtwo
       or the 501-1434 cgnine.

       Note that the TAAC-1 is not supported under Solaris 2.x.

       Power requirements (for the two-board set?) are +5V @ 23.9A, -5V
       @ 0.4A, +12V @ 0.2A.

501-1538        MVX Visualization Accelerator/Pixel Processor
       Part of a two-board set tied together with the 501-1596
       frontplane connector. See 501-1537 (VX) under Color Framebuffers
       above. Supported in the 4/330, 4/370, 4/390, 4/4xx.

       All locations are with component side up and VME connectors away
       from you.

       Along the rear edge, from left to right (top to bottom) are the
       frontplane connector and four LEDs. The LEDs are not used.

       J0101   Clock (single jumper in far middle)
         JUMP to enable 80MHz clock.

       J0901   Bus request (block in far left, pin 1 to left)
         1-2   unused?
         3-4   VME bus request 1                               JUMPED
         5-6   VME bus request 2                               UNJUMPED
         7-8   VME bus request 3                               JUMPED

       J0902   Bus grant (block in far left corner, three rows by four
                columns, pin 1 in far right, pin 4 in far left, pin 9
                in near right, pin 12 in near left)
         1-2   BG2 OUT - BG2 IN                                JUMPED
         3-4   BG1 OUT - BG1 IN                                JUMPED
         5-9   BGx OUT - BG3 OUT                               JUMPED
         6-10  BGx IN - BG3 IN                                 JUMPED
         7     BGx OUT
         8     BGx IN
         11-12 BG0 OUT - BG0 IN                                JUMPED

       J1001   Bus control/arbitration (single row in near left corner,
                pin 1 to right)
         1-2   VCC - CTRL                                      JUMPED
         3     GND
         4     VCC
         5-6   GND - MODE                                      JUMPED

       S1303   Base Address (switch block in near right corner, switch
                1 to left, "Up" away)
         1     A31                                             DOWN
         2     A30                                             DOWN
         3     A29                                             UP
         4     A28                                             UP
         5     A27                                             DOWN
         6     A26                                             UP
         7     A25                                             DOWN
         8     unused

       Note that the MVX is always to the right of the VX. Also, when
       attaching the frontplane connector, tighten the four screws in
       the order: upper right, lower right, upper left, and lower left.
       Turn each screw no more than two turns at a time.

       Note that at least SunOS 4.1.1 is required.

       Note that only frontplane connector 501-1596-02 should be used,
       not 501-1596-01.


   SCSI controller boards
   ----------------------

501-1006        Sun-2 SCSI/serial Multibus
       SCSI interface and four serial lines with full modem control.
       Identifiable by its three 50-pin header connectors, one of which
       (J3, the bottommost) is the SCSI interface and the other two of
       which (J1 and J2) are the serial lines.

       There are three DIP switches: U305, U312, and U315. Holding the
       board with the 50-pin header connectors down and component side
       toward you, U312 is lowest, U315 in the middle, and U305 at the
       top. All three are eight-position.

       U305    SCSI board base address/bus priority in (BPRN)
         Switches one through six correspond to address bits A14
         through A19 respectively. The default setting is switch six
         on, switches one through five off. Switch eight grounds the
         bus priority in (BPRN) line and must be OFF; it should be ON
         only if you are configuring the board as the highest-priority
         DMA master in a serial card cage (i.e. a non-Sun
         configuration).

       U312    SCSI interrupt priority
         Switches eight through one correspond to interrupt priorities
         0 through 7 in that (reverse) order. The default is for switch
         six to be ON and all others OFF, which yields an interrupt
         priority of 2.

       U315    Serial interrupt priority
         Switches eight through one correspond to interrupt priorities
         0 through 7 in that (reverse) order. The default is for switch
         two to be ON and all others OFF, which yields an interrupt
         priority of 6.

       Serial ports C and D appear on connector J2, E and F on
       connector J1. These are usually labelled SIO-S0 through SIO-S3
       on the back of the machine (SIO-C through SIO-F on older
       machines) and appear as /dev/ttys0 through /dev/ttys3 under
       SunOS. If you have a second SCSI/serial board, the serial ports
       appear as /dev/ttyt0 through /dev/ttyt3 under SunOS. The
       documented maximum output speed is 19200 bps. All ports are
       wired DTE and are compatible with both RS-232C and RS-423, using
       Zilog Z8530A dual UART chips. The pinout of J2 is:

          3    TxD-C       14  DTR-C       33  DD-D
          4    DB-C        15  DCD-C       34  CTS-D
          5    RxD-C       22  DA-C        36  DSR-D
          7    RTS-C       24  BSY-C       38  GND-D
          8    DD-C        28  TxD-D       39  DTR-D
          9    CTS-C       29  DB-D        40  DCD-D
          11   DSR-C       30  RxD-D       47  DA-D
          13   GND-C       32  RTS-D       49  BSY-D

       The pinout of J1 is exactly similar; substitute "E" for "C" and
       "F" for "D".

       Power requirements are +5V @ 5A.

501-1045        "Sun-2" SCSI host adapter, 6U VME
       Used with various 6U/9U VME adapters to produce the 501-1138,
       501-1149, and 501-1167. Uses PALs and logic sequencers to
       implement SCSI protocols. Frequently found in Sun-3's despite
       name.

       There are DIP switches at U702 and U704. The bits are inverted,
       so the default settings correspond to an address of 0x200000.

       U702    VMEbus address, low bits
         1-4   not connected
         5-8   A12-A15                 ON by default

       U704    VMEbus address, high bits
         1-5   A16-A20                 ON by default
         6     A21                     OFF by default
         7-8   A22-A23                 ON by default

501-1138        "Sun-2" SCSI host adapter, external, VME
       A 501-1045 6U VME SCSI host adapter in a 270-1138 6U/9U VME
       adapter, which provides only an external D50 connection. See
       501-1045. See 3/50 motherboard listing for pinout.

501-1149        "Sun-2" SCSI host adapter, internal, VME
       A 501-1045 6U VME SCSI host adapter in a 270-1059 6U/9U VME
       adapter, which provides only an internal connection to VME slot
       7 in 12-slot chassis. See 501-1045.

501-1167        "Sun-2" SCSI host adapter, external/internal, VME
       A 501-1045 6U VME SCSI host adapter in a 270-1059 6U/9U VME
       adapter, which provides only an internal connection to VME slot
       7 in 12-slot chassis, but also with a 530-1282 cable/connector
       to provide an external D50 connection as well. See 501-1045. In
       order to use both sides of the bus, it is generally necessary to
       remove the SCSI terminators from the 501-1045 board. See 3/50
       motherboard listing for external pinout. Has a holder for a
       coin battery which drives a clock chip that Suns don't use (see
       Misc Q&A #6).

501-1170        "Sun-3" SCSI host adapter, internal, VME
       A 501-1236 6U VME SCSI host adapter in a 270-1059 6U/9U VME
       adapter, which provides only an internal connection to VME slot
       7 in 12-slot chassis.

501-1217        "Sun-3" SCSI host adapter, external, VME
       A 501-1236 6U VME SCSI host adapter in a 270-1138 6U/9U VME
       adapter, which provides only an external D50 connection. See
       501-1236. See 3/50 motherboard listing for pinout.

501-1236        "Sun-3" SCSI host adapter, 6U VME
       Used with various 6U/9U VME adapters to produce the 501-1170 and
       501-1217. Can also be used with a 270-1059 6U/9U VME adapter (as
       in the 501-1170) paired with a 530-1282 cable/connector to
       provide an external D50 connection as well (generally requires
       removing the SCSI terminators from the 501-1236 to use both
       sides of the bus); this configuration was never supported by
       Sun, so it doesn't have a part number, but is supposed to work.
       Uses an NCR5380 SCSI chip.

       There are DIP switches at U408 and U409.

       SW1     VMEbus address
           At U409.
         1-2                           ON by default
         3                             OFF by default
         4-8                           ON by default

       SW2     VMEbus address
           At U408.
         1                             ON by default
         2     ON for first host adapter, OFF for second
         3-5                           ON by default
         6-8   not connected


   Non-SCSI disk controller boards
   -------------------------------

SMD

370-1012        Xylogics 450 SMD controller Multibus
       This board is used to control SMD hard disks. It is a Multibus
       bus master using variable-burst-length DMA.

       This board should not share a Multibus P2 section with Sun-2 CPU
       or memory boards because it has P2 traces which are incompatible
       with those used on the Sun-2 CPU and memory boards.

       Since this board is a Multibus bus master, its relative slot
       number determines its priority (slot 1 is the highest). The
       board must be placed in a lower-priority position than the Sun-2
       CPU board for proper handling of bus arbitration. It should also
       be placed in a lower-priority position than the 370-0502 (?)
       TAPEMASTER half-inch tape controller board, if there is one in
       the system, but it may be placed in a higher-priority position
       than the 501-1006 SCSI/serial board.

       This board dissipates a fair amount of heat and should be placed
       in the most central position possible, subject to the
       considerations listed above. For maximum air circulation, leave
       the slot to the left of this board empty, if possible.

       The edge of the board has one 60-pin header connector for SMD
       control and four 26-pin header connectors for SMD data; however,
       only two SMD disks are supported per board by SunOS. There is no
       required order of connection from SMD disks to SMD data
       connectors; the board automatically detects which disk is
       connected to which data connector.

       At one corner of the SMD-connector-edge of the board is a small
       LED, which flickers during disk activity.

       This board has dozens of jumper blocks, some of which are
       cross-jumped to other jumper blocks.

       JA-JB   crossjumped always from one to the other
                Located at K3.
         1-1   8/16-bit address control                UNJUMPED by default
         2-2   address bit 16                          UNJUMPED by default
         3-3   address bit 8                           JUMPED by default
         4-4   address bit 15                          UNJUMPED by default
         5-5   address bit 9                           UNJUMPED by default
         6-6   address bit 14                          UNJUMPED by default
         7-7   address bit 10                          UNJUMPED by default
         8-8   address bit 12                          JUMPED by default
         9-9   address bit 11                          UNJUMPED by default
                These address bits are inverted; the pattern above
                (0x11) actually yields address 0xEE??.
         10-10 ground                                  UNJUMPED by default

       JE
                Located at K4, more or less.
         1-2   parallel DMA arbiter/BPRO               JUMPED by default
         3     isolate parallel DMA                    -
         4-5   address bit 7                           JUMPED by default
                This address bit is also inverted.

       JF
         1-JH1 bus activity LED                        CROSSJUMPED by default
                Does not appear on my Rev. M board, JH1 is wired
                directly to pin 1 on E6 (a 74LS273) instead.

       JH
                Located at N10, right by P2 bus connector.
         1                                     CROSSJUMPED to JF1 by default
                See JF1.
         2     power fail protection                   -
         3-4   inhibits DMA sequencer CLK              UNJUMPED by default
         5-6   selects DMA sequencer CLK               JUMPED by default

       JJ
                Located at J12.
         1-2   inhibit disk sequencer CLK              JUMPED by default
         3-4                                           UNJUMPED by default

       JK
                Located at N11.
         Eight-pin jumper block, all unjumped by default.
                On my Rev. M board, pins 1-2, 3-4, and 5-6 are
                jumped.

       JM
                Located at N13, very lower right corner by P2 bus
                connector.
         1-2   16-24 bit mode                          UNJUMPED by default
         3-4   16-20 bit mode                          JUMPED by default
         5-6
                Not listed in docs, appear on my Rev. M board,
                unjumped.

       JN
                Can't find on my Rev. M board.
         1-2                                           UNJUMPED by default

       JT
                Located at K1-K2ish.
         1-2   optional 8K                             JUMPED by default
         3                                             -

       JV
                Located at B3.
         1-2   optional 8K                             JUMPED by default
         3                                             -

       JX      interrupt request level
                Located at N4.
         1-2                                           UNJUMPED by default
         3                                             -
         4-E2  interrupt level 2                       JUMPED by default
                 NOTE that this is NOT jumper pin JE2 but rather
                 another pin labeled just "E2".
         5-6                                           UNJUMPED by default
         7-8                                           UNJUMPED by default

       JY
                Located at G9ish.
         1-2   close ECC feedback                      JUMPED by default
         3                                             -

       JZ      crystal shunt
                Located in upper right corner by thumblever.
         Jumped by default.

       For the first XY450 board, jump JC1-JR1, JC2-JD2, JC3-JD3, and
       JC4-JD4. For the second XY450 board (only two are supported by
       SunOS), jump JC1-JR1, JC2-JD2, JC3-JD3, and JC4-JR4. Pins one
       through four of JC correspond to address bits six through three
       in that (reverse) order. Jumping JC to JR selects the bit;
       jumping JC to JD deselects the bit. Hence, the address of the
       first board is 0xEE40 and the second 0xEE48. These jumper blocks
       are located at K4, right by the JE block.

       Power requirements are +5V @ 8A and -5V @ 1A.

IPI

501-1539
501-1855        ISP-80 IPI controller VME
       This board allows connection of IPI drives (q.v. for information
       on IPI in general) to a VME-based machine. It has an onboard
       68020 and RAM for handling I/O optimization and buffering. It
       has a maximum DMA tranfer rate of 16M per second, but the IPI
       maximum disk tranfer rate is only 6M.

       Note that older firmware revisions may have problems with newer
       disks.

       Note that the 501-1539 can be used with cgfive boards
       501-1267-05 or later only.

SCSI ADAPTORS

370-1010        Adaptec ACB4000 SCSI-MFM controller
       This board allows an MFM hard disk with a standard ST-506
       interface to be connected to a SCSI bus. The Adaptec ACB4070A
       SCSI-RLL controller is almost identical.

       This board supports up to two MFM drives, which appear as SCSI
       LUNs 0 and 1 within the SCSI ID for the board as a whole.

       Connection information:

       J0      20-pin                  MFM data connector for drive 0

       J1      20-pin                  MFM data connector for drive 1

       J2      34-pin                  disk control connector

       J3                              power

       J4      50-pin                  SCSI connector

       Jumper information:

       JS,JR,JT,JPU
         R-S   select precomp at cylinder 400          UNJUMPED by default
         R-T   select precomp on all cylinders         UNJUMPED by default
         R-PU  deselects precomp on all cylinders      JUMPED by default

       J5
         A-B   SCSI id MSB
         C-D   SCSI id
         E-F   SCSI id LSB
                 Pins A-F are used to set the SCSI bus address. Jumping
                 a pair of pins turns that bit on; unjumping them turns
                 that bit off. The default SCSI bus address is 0, all
                 pins unjumped.
         G-H   DMA transfer rate                       UNJUMPED by default
                 SYSCLOCK/4 when jumped, DATACLOCK/2 when unjumped.
         I-J   Extended commands enable/disable        UNJUMPED by default
         K-L   not used                                UNJUMPED by default
         M-N   selects a seek complete status          UNJUMPED by default
                 Also described as "Support Syquest 312/DMA 360".
         O-P   Self-diag                               UNJUMPED by default

       SCSI terminator packs at RP3 and RP4, sometimes (usually?)
       soldered in.

       Error Codes (number of half-second bursts):

           None            8085
           1               8156 RAM
           2               Firmware
           3               AIC-010 logic
           4               AIC-010 logic
           5               AIC-300 logic
           6               AIC-010 BUS

       Power requirements are +5V @ 2A (1.5A?) and +12V @ 0.5A (0.3A?).

xxx-xxxx        Emulex MD21 SCSI-ESDI controller
       This board allows an ESDI disk to be connected to a SCSI bus.
       The MD21 can actually control two ESDI disks, which appear as
       SCSI logical units (LUNs) 0 and 1 on the SCSI ID assigned to the
       MD21 as a whole.

       The MD21 uses a 8031 CPU with 32K PROM. It has 32K of onboard
       buffer RAM, with about 14K being used for each connected disk.
       It supports ESDI transfer rates up to 15Mbps and SCSI transfer
       rates up to 1.25Mbps (burst). It supports the SCSI
       connect/disconnect option and SCSI bus parity. Manufacturer's
       rated Mean Time Between Failures is 42,425 hours.

       This board has one eight-position DIP switch and seven
       connectors.

       SW1
         1-3   SCSI bus ID, LSB (SW1-1) to MSB (SW1-3)
         4     not used
         5     physical sector size
                 ON    256 bytes
                 OFF   512 bytes
         6     automatic drive spinup
                 ON    drives not spun up automatically
                 OFF   drives spun up automatically
         7     soft error reporting
                 ON    errors not reported
                 OFF   errors reported
         8     SCSI bus parity
                 ON    enabled
                 OFF   disabled

       J1      ESDI control (daisy-chained to both disks)
                 maximum cable length 10 feet

       J2      ESDI data for drive 1
                 maximum cable length 10 feet

       J3      ESDI data for drive 0
                 maximum cable length 10 feet

       J4      user panel connector

       J5      testing

       J6      SCSI bus

       J7      power

       This board can be configured to provide power to an external
       terminator by installing a 1N5817 diode at board location CR2
       and connecting wire wrap jumper E to F. This will provide
       termination power on SCSI bus pin 26. WARNING: this can cause
       shorts!

       This board has two status LEDs, one red and one green.

               RED     GREEN
               ---     -----
               OFF     OFF     hardware reset test
               OFF     ON      8031 test
                               PROM checksum test
                               buffer controller test
                               dynamic RAM test
               ON      OFF     disk formatter test
                               SCSI controller test
               ON      ON      self-test passed, ready to run

       During normal operations, the green LED seems to blink steadily.

       Power requirements are +5V @ 1.5A.

MISC

370-1401        Prestoserve NFS accelertor SBus
       Nonvolatile RAM and logic used to cache NFS writes (which are
       otherwise synchronous and hence slow).

       With component side up and SBus connector away from you, there
       are two batteries, each with a fuse, and a switch block toward
       the near side. The batteries are not field-replaceable. On the
       back edge is an LED and a "Live Test Switch". When this button
       is pressed, the LED lights up if there is cached data in the
       onboard nonvolatile memory.

       SW1 (in near midle)
         BAT   enables battery backup. The Prestoserve software will
                not initialize and NFS writes will not be cached unless
                SW1 is in this position.
         5V    disables battery backup. Cached data will be lost if the
                switch is set to 5V for more than five minutes. Use
                this setting to conserve battery power when the board
                is not installed and whatever data is currently present
                does not need to be preserved.

       Note that at least SunOS 4.1.1 with Prestoserve 2.3 software is
       required. Solaris 2.x requires Prestoserve 2.4. The Sun 4/6xx
       systems require at least Solaris 1.0.1 (SunOS 4.1.2), and only
       support one Prestoserve controller (either VME or SBus) in the
       system. The SBus Prestoserve accelerates NFS writes to disks
       connected to either SBus or VME disk controllers.

       The SPARCstation 10 supports an onboard NVSIMM or the SBus
       Prestoserve controller.

       Power requirements are +5V @ 0.8A.

501-1847        Prestoserve NFS accelerator VME
       Nonvolatile RAM and logic used to cache NFS writes (which are
       otherwise synchronous and hence slow).

       With component side up and VME connectors away from you, there
       are three switch blocks toward the far edge and a jumper in the
       far middle. Toward the near edge are three batteries, each with
       a fuse, and a switch block. The batteries are not
       field-replaceable. On the back edge is an LED and a "Live Test
       Switch". When this button is pressed, the LED lights up if there
       is cached data in the onboard nonvolatile memory.

       SW1 (in far right, switch 1 to right)
         1     ON for 24-bit VME operation (default), OFF for 32-bit VME
                operation.
         2-9   Address bits A24-A31. All OFF by default.

       SW2 (in far middle, switch 1 to right)
         1-8   starting address bits A16-A23. OFF to match a one bit,
                ON to match a zero bit.

       SW3 (in far left, switch 1 to right)
         1-8   ending address bits A16-A23. OFF to match a one bit, ON
                to match a zero bit.

       SW4 (in near leftish)
         BAT   enables battery backup. The Prestoserve software will
                not initialize and NFS writes will not be cached unless
                SW4 is in this position.
         5V    disables battery backup. Cached data will be lost if the
                switch is set to 5V for more than five minutes. Use
                this setting to conserve battery power when the board
                is not installed and whatever data is currently present
                does not need to be preserved.

       R4 (jumper in far middle)
         UNJUMPED

       The normal address range for the Prestoserve board is
       0x800000-0x8FFFFF (SW2-1 OFF, rest of SW2 ON, SW3-1,5,6,7,8 OFF,
       rest of SW3 ON). The alternate range is 0xC00000-0xCFFFFF (as
       above but SW2-2 and SW3-2 OFF). This alternate address range is
       used if the Network CoProcessor software release 1.4 is
       installed and a fifth NC400 (370-1396, 370-1421, 370-1696?) is
       installed. This restriction does not apply to Network
       CoProcessor release 1.4.2.

       Note that at least SunOS 4.1 PSR A (with Prestoserve 2.0
       software) is required. SunOS 4.1.1-4.1.3 require Prestoserve 2.3
       software. It is not clear whether Solaris 2.0 or 2.1 support the
       VME Prestoserve, but 2.2 and later don't. The Sun 4/6xx systems
       require at least Solaris 1.0.1 (SunOS 4.1.2), and only support
       one Prestoserve controller (either VME or SBus) in the system.
       Furthermore, the VME Prestoserve only accelerates NFS writes to
       disks connected to VME disk controllers.

       When used with the ISP-80 IPI disk controller (501-1539 or
       501-1855), the ISP-80 firmware must be at least 525-1023-05,
       525-1024-08, and 525-1025-08. Lower revisions may cause SunDiag
       to hang when the system has 32M of memory. Systems with more
       than 32M are not affected. The 501-1539-08, 501-1855-02, and
       later ISP-80 boards have the minimum required firmware.

       Power requirements are +5V @ 2.1A.


   Non-SCSI tape controller boards
   -------------------------------

HALF-INCH NINE-TRACK

370-0502 ?      Computer Products Corporation TAPEMASTER
       This part number is listed as either the TAPEMASTER or the
       Xylogics 472 tape controller in different places. The TAPEMASTER
       is also listed as 370-0167.

       This board should not share a Multibus P2 section with Sun-2 CPU
       or memory boards.

       This board is a Multibus bus master, so its relative slot
       number determines its priority (slot 1 is the highest). The
       board must be placed in a lower-priority position than the Sun-2
       CPU board for proper handling of bus arbitration. It should also
       be placed in a higher-priority position than the 370-1012
       Xylogics 450 SMD controller board, if there is one in the
       system.

       DIP switch and jumper information:

       S1      addressing
         Eight-position DIP switch, selecting address bits A1 through
         A7 and 8/16-bit addressing. The first TAPEMASTER board should
         have switches 1 and 3 OFF and all others ON. The second
         TAPEMASTER board should have switches 1, 3, and 7 OFF and all
         others ON.

       S2      addressing
         Eight-position DIP switch, selecting address bits A8 through
         A15. All switches should be ON.

       jumper pins (defaults in uppercase):
         1-2   UNJUMPED for Sun-2 backplanes, jumped for serial
               backplane (Sun-1/100U)

         3-4   JUMPED if the CPU is set up to support CBRQ, unjumped if
               not

         3-5   jumped if the CPU is not set up to support CBRQ,
               UNJUMPED if it is

                       JUMPED BY DEFAULT
         INT-3         28-29           35-39           43-49           48-49
         15-16         31-39           36-40           44-49           42-50
         18-19         32-39           37-39           45-49           51-52
         20-21         33-39           38-39           46-49           54-55
         25-26         34-39           41-49           47-49           57-58

                       UNJUMPED BY DEFAULT
         22      27      30      53      56      59-60

       Power requirements are +5V @ 4A.


SCSI ADAPTORS

370-1011        Sysgen SC4000 SCSI/QIC-II controller
       This board is used to connect a QIC-II (aka QIC-02) quarter-inch
       cartridge tape drive to the SCSI bus. The board supports only
       one attached tape drive, usually a QIC-11 (20M) drive. It was
       standard equipment on the 2/120.

       There are two LEDs (DS1 and DS2) in one corner of the board. DS2
       is on when the board is selected (during SCSI activity).

       Connection information:

       JH      50-pin                  SCSI connector

       JT      50-pin                  tape connector, labelled "TAPE"

       Note that there is a 50-pin SCSI connector labelled "SLAVE" on
       the board as well. The Sysgen manual recommends connecting
       downstream SCSI devices to this connector instead of using an
       inline connector on JH; Sun recommends against this, because
       doing so will result in loss of access to all downstream devices
       if the Sysgen board fails.

       DIP switch and jumper information:

       four-position DIP switch        SCSI address
         Switches one, two, and three correspond to SCSI address bits
         one, two, and three respectively. The default is SCSI address
         4: switches one and two OFF, switch three ON. Switch four
         should always be OFF.

       PK6     DIP sockets             SCSI termination
       PK7
         220/330-ohm terminator packs

       W1      jumper
         Eight pins, all unjumped by default.

       Power requirements are +5V @ 2A.

xxx-xxxx        Emulex MT-02 SCSI/QIC-02?(-36?) controller
       This board is used to connect a quarter-inch cartridge tape
       drive to the SCSI bus. It is the standard method of connecting a
       QIC-24 (60M) drive to a Sun-3. Despite the name, the board is
       reputed to actually attach QIC-36 (not QIC-02) devices to the
       SCSI bus. So far I haven't found any documents which actually
       say one way or the other.

       With the component side of the board up and the power connector
       J4 in the upper right corner, the tape data connector J3 is on
       the left side, the SCSI connector J5 is on the right side, and
       the eight-position DIP switch SW1 is in the upper left corner.

       SW1     eight-position DIP switch
        SW1-1  SCSI id LSB
        SW1-2  SCSI id
        SW1-3  SCSI id MSB
        SW1-4  unused                  OFF by default
        SW1-5  drive select 0          see table below
        SW1-6  drive select 1
        SW1-7  drive select 2          documented as OFF by default
        SW1-8  SCSI bus parity         OFF by default
                 ON    enable
                 OFF   disable

       There are two jumpers, A-B and E-F.

       A-B     EPROM memory size select        JUMPED by default
         In the upper-leftish center.

       E-F     JUMPED for Archive Scorpion
               UNJUMPED for Wangtek 5000E
         Just inboard from the center of the tape data connector J3.

       SCSI terminator packs are at U5 and U46. U5 is in the upper
       right corner; U45 is in the lower right corner.

       Drive type settings are:

               SW1-7  SW1-6  SW1-5      Drive

                 0      0      0        Cipher QIC-36
                 0      0      1       *Archive Scorpion
                 0      1      0        Wangtek series 5000 basic
                 0      1      1       *Wangtek series 5000E
                 1      0      0        Kennedy 6500
                 1      0      1        ???
                 1      1      0        ???
                 1      1      1        ???

          *Documented by Sun.


   Ethernet and other network boards
   ---------------------------------

501-0288        3COM 3C400 Ethernet Multibus
       This board is used in Sun-1 and Sun-2 configurations. It may be
       distinguished from the 501-1004 Sun-2 Multibus Ethernet by
       checking the location of the Ethernet cable connector, which is
       toward the bottom of the board. (On the edge with the Multibus
       connectors, the larger connector is toward the top.)

       DIP switch and jumper information:

       JP1     jumper          Addressing size
       JP2     jumper
         With the board component-side up and the Multibus edge
         connectors facing you, these jumpers are in the lower left
         corner of the board. They should be set for 20-bit memory
         addressing, with JP1 unjumped and JP2 jumped.

       MRDC    jumper
       MWTC    jumper
       IORC    jumper
       IOWC    jumper
         To the right of JP1 and JP2. MRDC and MWTC should be jumped.
         IORC and IOWC should be unjumped.

       INT?    jumper          Ethernet interrupt level
         Eight-position jumper, with pairs marked INT0 through INT7.
         INT3 should be jumped, all others unjumped.

       ADR17   DIP switch
         In the bottom right corner of the board. All switches should
         be set to OFF.

       ADR13   DIP switch
         Eight-position DIP switch; switches seven through one
         correspond to address bits A13 through A19 in that (reverse)
         order. For the first Ethernet board, switches one, two, and
         three should be ON and all others OFF. For the second Ethernet
         board, switches one, two, three, and seven should be ON and
         all others OFF. Switch eight should ALWAYS be OFF.

       The Ethernet address PROM is in component position I2.

       Power requirements are +5V @ 5V and +12V @ 0.5A.

501-1004        Sun-2 Ethernet Multibus
       This board may be distinguished from the 501-0288 3COM Multibus
       Ethernet by checking the location of the Ethernet cable
       connector, which is toward the top of the board (toward the same
       short edge as the larger Multibus connector). The connector is a
       header connector; electrically, it is AUI Ethernet.

       Intel 82586 Ethernet controller chip, 256K of dual-ported
       memory.

       DIP switch and jumper information:

       U503    DIP switch      Register base address
         Eight-position DIP switch; switches one through eight
         correspond to address bits A12 through A19, respectively. For
         the first Ethernet board, switches four and eight should be ON
         and all others OFF. For the second Ethernet board, switches
         three, four, and eight should be ON and all others OFF.

       U505    DIP switch      On-board memory base address
         Eight-position DIP switch; switches one through four
         correspond to address bits A16 through A19, respectively. For
         the first Ethernet board, switch three should be ON and all
         others OFF. For the second Ethernet board, switches two and
         four should be ON and all others OFF.

       U506    DIP switch      Size of Multibus port into onboard memory
         Eight-position DIP switch. For the first Ethernet board,
         switches two, three, six, and seven should be ON and all
         others OFF. For the second Ethernet board, switches one, four,
         five, and eight should be ON and all others OFF.

       J101    jumper          Transceiver type
         For type 1 (capacitive-coupled) transceivers, jumped. For type
         2 (transformer-coupled) transceivers, unjumped. On my Rev. 12A
         board, just a pair of solder pads, no wire -- permanently
         unjumped.

       J400    jumper          M.BIG
         "J400 allows the selection of M.BIG, or the input to Port B
         (bank select circuitry) which has the address lines for 256K
         DRAMs." Unjumped by default.

       J401    jumper          M.EXP
         Multibus P2 address and data buffers enabled when jumped,
         disabled when unjumped. If enabled, this board MUST have its
         own private P2 section. ONLY boards which do not use the P2
         bus at all may be one the same section. If disabled, this
         board may be on the same P2 section as the CPU and memory
         boards, or it may be on a P2 section used by other boards with
         these notes: this board grounds pins P2-26, P2-32, P2-38, and
         P2-50, and cannot tolerate voltages outside the range of 0-5V
         on any other P2 pins. Sun-supplied boards meet these
         requirements.

       J500    hardwired jumper        Ethernet interrupt level
         Sets the Ethernet interrupt level. Pins 7-8 are hardwired
         together, setting the interrupt level to 3. Level 7 is closest
         to the edge of the board, level 0 closest to the center.

       Power requirements are +5V @ 6A and +12V @ 0.5A.


   Communications boards
   ---------------------

501-1006        Sun-2 SCSI/serial Multibus
       See under "SCSI boards".

xxx-xxxx        Systech MTI-800A/1600A Multiple Terminal Interface Multibus
       There are two parts to the MTI-800A/1600A: a Multibus controller
       board and a 19" rack-mountable chassis with eight (800A) or
       sixteen (1600A) serial ports. The board should not share a
       Multibus P2 section with Sun-2 CPU or memory boards.

       This board provides two modes of operation: single character
       transfer mode, in which data is transferred one character at a
       time to or from the CPU, and block transfer mode, in which data
       is moved between the board and memory via DMA. In this mode, the
       board is a Multibus bus master and supports CBRQ.

       This board has four eight-position DIP switches, near the center
       of the board.

       DIP switch information:

       SW2     address
         Switches 6 and 7 ON and all others OFF.

       SW3     address/default channel configuration
         1,2   OFF (?)
         3     ON; between this and SW2, address set to 0x0620.
         4,5   OFF (?)
         6     8/16-bit addressing, ON/OFF respectively. OFF by default.
         7,8   one stop bit, both OFF

       SW4     default channel configuration
         1,2   no parity, both OFF
         3,4   eight bits, both ON
         5-8   9600 baud: 5, 6, and 7 ON, 8 OFF

       SW5     interrupt level
         Switch 5 ON, all others OFF, for interrupt level 4

xxx-xxxx        Systech VPC-2200 Versatec Printer/Plotter controller Multibus
       This board should not share a Multibus P2 section with Sun-2 CPU
       or memory boards.

       This board is a Multibus bus-mastering DMA board with CBRQ
       support. It supports two output channels: one channel supports
       the Versatec printer/plotter in either single-ended or
       long-lines differential mode, and the second supports any
       standard Centronics- or Dataproducts-compatible printer at rates
       up to 10,000 lines per minute. The two modes of the first
       channel are transparent to the software. The second channel has
       automatic printer selection which eliminates the need for
       setting switches for either Centronics- or Dataproducts-type
       printers.

       This board has a self-test feature for both channels that does
       not require any software support. The Versatec channel sends a
       132-character ASCII string in print mode and a 256-byte pattern
       in plot mode. The printer channel sends a 132-character ASCII
       string.

       DIP switch information:

       SW3     8/16-bit I/O, big/little-endian, 8/16-bit addressing, address
         Switches 3, 4, 5, 6, and 7 should be ON, all others OFF.

       SW4     address
         Switch 3 OFF, all others ON. Between this and SW3, the base
         address is set to 0x0480.

       SW5     interrupt priority
         Switch 3 ON, all others OFF, for interrupt priority 2.


   Floating-point and other system accelerators
   --------------------------------------------

370-1021        Sky Floating Point Processor Multibus
       This board must not share a Multibus P2 section with any Sun
       board which also uses the P2 bus.

       This board is an IEEE-compliant floating point coprocessor with
       a Weitek chip.

       This board has two jumper blocks, JP01 and JP02, in the lower
       left corner of the board (with the Multibus edge connector
       facing down and the component side facing you). These are
       14-position blocks; pin 1 is in the lower left, pin 7 the lower
       right, pin 8 the upper right, and pin 14 the upper left.

       Jumper information:

       JP01    address
         As wired by Sky: 1-2 jumped
         AS WIRED FOR USE IN A SUN: 1-11 jumped, address 0x2000

       JP02    interrupt level
         As wired by Sky: 2-6, 4-5 jumped
         AS WIRED FOR USE IN A SUN: 1-6, 3-6, 4-5 jumped, interrupt level 2

       Power requirements are +5V @ 4A.


   Cardcage backplanes
   -------------------

501-1090        2/120 Multibus
       Nine-slot passive Multibus backplane. Slot 6 must be occupied by
       either a monochrome framebuffer board or a P2 terminator board.

   Other boards
   ------------

501-1054        Multibus-VME Adapter
       This board/frame accepts a normal Multibus card and connects it
       electrically to a VME bus. It has twelve DIP switch blocks, a
       PROM socket, and two jumpers, to allow it to be configured for
       any particular board. It was initially introduced after the
       transition to VME chassis in the Sun-2 era, and adapted Multibus
       boards such as the Xylogics 451 SMD disk controller were
       supported through the Sun-4 VME models.

       DIP switch blocks 1 through 4 determine access to Multibus I/O
       space from the VME bus. DIP switch blocks 5 through 8 determine
       access to Multibus memory from the VME bus. DIP switch blocks 9
       and 10 are unused. DIP switch block 11 is used with 20-bit-DMA
       Multibus boards. DIP switch block 12 and the PROM socket map
       Multibus interrupts to VME interrupts. The jumper block controls
       the multibus BCLK and CCLK.

       Multibus I/O space is mapped into the VME 16-bit address space.
       Multibus memory space is mapped into the VME 24-bit address
       space. Note that the address is the same on both buses (e.g. the
       Xylogics 450 appears at Multibus I/O address 0xEE40; therefore
       it will appear at VME address 0xEE40 as well).

       SW1     Multibus I/O addresses, low
         1     unused
         2-8   A7-A1 in reverse order (2 is A7, 3 is A6, 8 is A1, etc.)

       SW2     Multibus I/O block size, low
         1     unused
         2-8   A7-A1 in reverse order (2 is A7, 3 is A6, 8 is A1, etc.)

       SW3     Multibus I/O addresses, high
         1-8   A15-A8 in reverse order (1 is A15, 2 is A14, 8 is A8,
                etc.)

       SW4     Multibus I/O block size, high
         1-8   A15-A8 in reverse order (1 is A15, 2 is A14, 8 is A8,
                etc.)

       SW5     Multibus memory addresses, low
         1-8   A15-A8 in reverse order (1 is A15, 2 is A14, 8 is A8,
                etc.)

       SW6     Multibus memory block size, low
         1-8   A15-A8 in reverse order (1 is A15, 2 is A14, 8 is A8,
                etc.)

       SW7     Multibus memory addresses, high
         1-8   A23-A16 in reverse order (1 is A23, 2 is A22, 8 is A16,
                etc.)

       SW8     Multibus memory block size, high
         1-8   A23-A16 in reverse order (1 is A23, 2 is A22, 8 is A16,
                etc.)

       SW9     Unused

       SW10    Unused

       SW11    20-bit-DMA
         1-4   A23-A20 in reverse order (1 is A23, 2 is A22, 4 is A20,.
                etc.)
         5-8   unused

       SW12    VME interrupt vector
         1-8   Vector, LSB to MSB. Maps all Multibus interrupts to the
                same VME vector. Use the PROM to map different Multibus
                interrupts to different VME vectors. If the PROM is
                installed, all switches in this block must be OFF.

       J1      BCLK and CCLK (9.8304MHz)
         1-2   jumped to provide Multibus bus clock (BLCK) to the
                board, unjumped to not. Most boards require this clock
                signal.
         3-4   jumped to provide Multibus constant clock (CCLK) to the
                board, unjumped to not. Most boards require this clock
                signal.

       To set the Multibus I/O switches (blocks 1 through 4):

       1) Find the block size for your board. If it is not a power of
          two, round it up to the nearest power of two.

       2) Subtract one and throw away the lowest bit (A0 is not connected
          to the switches -- the smallest possible block is two bytes).

       3) For each zero bit, turn the corresponding switch ON, and OFF
          for each one bit, in SW2 and SW4. Remember that the address
          lines are reversed in the switch positions!

       4) Find the base address for your board and bitwise-OR it with
          the result from step 2, throwing away the lowest bit (A0 is
          not connected to the switches).

       5) For each zero bit, turn the corresponding switch ON, and OFF
          for each one bit, in SW1 and SW3. Remember that the address
          lines are reversed in the switch positions!

       If you don't want to map any Multibus I/O space, set all
       switches in SW1 and SW3 to ON, and SW2 and SW4 to OFF.

       To set the Multibus memory switches (blocks 5 through 8):

       1) Find the block size for your board. If it is not a power of
          two, round it up to the nearest power of two.

       2) Throw away the low byte (A0-A7 are not used -- the smallest
          address increment is 256 bytes) and subtract one.

       3) For each zero bit, turn the corresponding switch ON, and OFF
          for each one bit, in SW6 and SW8. Remember that the address
          lines are reversed in the switch positions!

       4) Find the base address for your board and throw away the low
          byte (A0-A7 are not used).

       5) Bitwise-OR it with the result from step 2.

       6) For each zero bit, turn the corresponding switch ON, and OFF
          for each one bit, in SW5 and SW7. Remember that the address
          lines are reversed in the switch positions!

       If you don't want to map any Multibus memory, set all
       switches in SW5 and SW7 to ON, and SW6 and SW8 to OFF.

       If the Multibus board is a 24-bit-DMA master, set all switches
       in SW11 to OFF. Otherwise, if it is a 20-bit-DMA master, use
       switches 1-4 in SW11 to supply the A20-A23 of the DMA address.
       As usual, 0 is ON and 1 is OFF. Note that "to access Sun main
       memory via DVMA, these bits should be set to zero."

       To use SW12 to set the VME interrupt vector, simply set the
       desired vector value in the switches. As usual, 0 is ON and 1 is
       OFF. To use the PROM to set VME interrupt vectors, program a
       32-by-8 bipolar PROM with the vectors for Multibus interrupt
       levels 7 through 1 in locations 0 through 6 respectively
       (reversed). Note that Multibus interrupt 0 cannot be mapped,
       "since the VMEbus has no level 0 interrupt."

       Example: the 370-1012 Xylogics 450 SMD disk controller uses no
       Multibus memory, has 8 bytes of Multibus I/O at address 0xEE40
       (for the first controller), is a 24-bit-DMA board, wants VME
       interrupt vector 0x48, and requires BCLK and CCLK. Hence:

                        1    2    3    4    5    6    7    8
               SW1     (un) ON   OFF  ON   ON   ON   OFF  OFF
               SW2     (un) ON   ON   ON   ON   ON   OFF  OFF
               SW3     OFF  OFF  OFF  ON   OFF  OFF  OFF  ON
               SW4               -- all ON --
               SW5               -- all ON --
               SW6               -- all OFF --
               SW7               -- all ON --
               SW8               -- all OFF --
               SW11              -- all OFF --
               SW12    ON   ON   ON   OFF  ON   ON   OFF  ON
               J1          -- pins 1-2, 3-4 jumped --

       Example: the 370-0502 (0167?) CPC Tapemaster 1/2" tape
       controller uses no Multibus memory, has two bytes of Multibus
       I/O at address 0x00A0, is a 20-bit-DMA board, wants VME
       interrupt vector 0x60, and requires BCLK and CCLK. Hence:

                        1    2    3    4    5    6    7    8
               SW1     (un) OFF  ON   OFF  ON   ON   ON   ON
               SW2     (un) ON   ON   ON   ON   ON   ON   ON
               SW3               -- all ON --
               SW4               -- all ON --
               SW5               -- all ON --
               SW6               -- all OFF --
               SW7               -- all ON --
               SW8               -- all OFF --
               SW11              -- all OFF --
               SW12    ON   ON   ON   ON   ON   OFF  OFF  ON
               J1          -- pins 1-2, 3-4 jumped --

501-1483        DC to DC converter for 501-1637 in 3/80
       Needed to supply -5V to 501-1637 mgthree framebuffer when
       installed in a 3/80 and using a 1600 x 1280 high resolution
       monitor.

       Has a ten-pin connector (J1) in one corner, with pin 1 squared and
       pins numbered by pairs. The -5V output can be measured on pins 1
       and 10 (in opposite corner) of J1 and on pins 31 and 63 of the
       CPU's P4 connector.

       Power requirements of this board with the 501-1637 are +5V @
       2.7A.

501-1671        SPARCcenter 2000 system control board
       This board provides the hostid, Ethernet address, and possibly
       other stuff to the motherboards installed in a SPARCcenter 2000.

       It has a 'JTAG' connector at J0101 and a set of eight LEDs, half
       yellow and half green. From the yellow end:

               SVP     Service Processor Attached                      Y
               RST     System Reset                                    Y
               STP0    Stop Request from CARB0 ASIC                    Y
               STP1    Stop Request from CARB1 ASIC                    Y
               Vbb     -12VDC OK                                       G
               Vdd     +12VDC OK                                       G
               Vtt     +1.2VDC OK                                      G
               Vcc     +5VDC OK                                        G

       At location U0203 is the EEPROM, a 2K x 8-bit TMS29F816, which
       contains the hostid and Ethernet address. This part is not
       field-replaceable. If the contents of the system control board
       EEPROM are invalid, the values stored in the NVRAM on system
       board 0 are used instead, and the yellow LED on the keyswitch
       interface board is ON.

       The update-system-idprom ROM monitor command downloads the
       contents of the system board 0 NVRAM to the EEPROM on the system
       control board. At least version 2.11 is required to do this.

       To invalidate the contents of the system control board EEPROM,
       use the following sequence of commands:
               patch noop call update-system-idprom
               patch noop call update-system-idprom
               patch call noop update-system-idprom
               update-system-idprom

501-1979        SPARCserver 1000 system control board
       This board provides the hostid, Ethernet address, and possibly
       other stuff to the motherboards installed in a SPARCserver 1000.

       It has a variety of connectors, and a reset switch in one
       corner.

       J0101   'JTAG'

       J1001   '5 1/4" SCSI power'

       J1002   '3 1/2" SCSI power'

       J1003   '3 1/2" SCSI power'

       J1004   'Internal SCSI bus'

       At location U0201 is the EEPROM, a 2K x 8-bit TMS29F816, which
       contains the hostid and Ethernet address. This part is not
       field-replaceable. If the contents of the system control board
       EEPROM are invalid, the values stored in the NVRAM on system
       board 0 are used instead, and the yellow LED on the power supply
       is ON.

       The update-system-idprom ROM monitor command downloads the
       contents of the system board 0 NVRAM to the EEPROM on the system
       control board. At least version 2.11 is required to do this.

       To invalidate the contents of the system control board EEPROM,
       use the following sequence of commands:
               patch noop call update-system-idprom
               patch noop call update-system-idprom
               patch call noop update-system-idprom
               update-system-idprom

501-2335        SPARCcenter 2000 system control board
       See 501-1671.

501-2406        SPARCcenter 2000 system control board unprogrammed
       See 501-1671.

501-2412        SPARCserver 1000 system control board unprogrammed
       See 501-1979.

             END OF PART IV OF THE SUN HARDWARE REFERENCE

=============================================================================

PART V
                                ======
                                DISKS
                              KEYBOARDS
                                 MICE
                               MONITORS
                            FLOPPY DRIVES
                             TAPE DRIVES


DISKS
=====

   SMD
   ---

   MFM
   ---

   ESDI
   ----

   SCSI
   ----

  Performance information for some Sun stock SCSI disks:

       CAPACITY                207M    424M    669M    1.3G
       FORM FACTOR (in)        3.5     3.5     5.25    5.25
       AVERAGE SEEK (ms)       16      14      16      11.5
       RAW DISK TRANSFER       1.6     2.5-3   1.8     3-4.5
         RATE (Mbps)
       PERFORMANCE (Kbps)*     509     1012    779     1429
       RPM                     3600    4400    3600    5400
       BUFFER SIZE (K)         64      64      64      256
       MTBF (hours)            50,000  100,000 50,000  100,000

* "Sun performs a combination of random and sequential benchmarks to
  develop an overall measurement of performance for mass-storage
  products. These tests are performed on Sun systems and a geometric
  mean is calculated to generate a composite of the performance that a
  typical user might expect."

  Note that these numbers are highly nonauthoritative. In particular,
  Sun frequently uses several different disk mechanisms for a
  particular size (e.g. a SUN0207 may be a Maxtor LXT213S, a Quantum
  PD210S, or a Conner CP30200), and performance will vary between them.

xxx-xxxx        CDC/Imprimis/Seagate 94211-91
       5.25" half-height, 91M, used in 386i models.

       Looking at the back of the drive with the SCSI connector on the
       left, there are four horizontal jumpers and four vertical
       jumpers (which will be arbitrarily referred to as H0-H3 and
       V0-V3 from left to right; actual markings on the drive are
       unknown). H1 should always be jumpered, the other horizontal
       jumpers should always be unjumpered. V3 should always be
       jumpered; V0 through V2 seem to be the SCSI ID, MSB to LSB.

xxx-xxxx        Quantum ProDrive 105s
       3.5" half-height, 105M, used in the 3/80 and some SPARCstations.

       Looking at the base of the drive, with the front to the right
       and the SCSI and power connectors to the left, there are two
       groups of three jumpers.

       A2-A0
         SCSI id, MSB (A2) to LSB (A0).

       WS
         To spin up drive at power up, jumpered. To wait for START
         MOTOR command, unjumpered.

       EP
         Parity checking enabled when jumpered, disabled when
         unjumpered.

       SS
         Self-seek test enabled when jumpered, disabled when
         unjumpered. Should always be unjumpered.


   IPI
   ---

  IPI stands for Intelligent Peripheral Interface. It moves much of the
low-level I/O processing to the interface controller, relieving the
system CPU of the burden. Disks are daisy-chained as with SCSI, but up
to eight units are supported on one controller. As with SCSI, the chain
must be terminated. The maximum disk tranfer rate is 6M per second.

  Note that more than four disks on a controller usually loads it
heavily and can cause the system to be unstable. With high-performance
disks capable of sustained 6M per second transfers, even three can be
too much.

  Performance information for some Sun stock IPI disks:

       CAPACITY                911M    1.3G
       FORM FACTOR (in)        8       5.25
       AVERAGE SEEK (ms)       15      11.5
       RAW DISK TRANSFER       6       3.5-4
         RATE (Mbps)
       PERFORMANCE (Kbps)*     1368    1408
       RPM                     3600    5400
       MTBF (hours)            50,000  100,000
       CONTROLLER              ISP-80  ISP-80

* "Sun performs a combination of random and sequential benchmarks to
  develop an overall measurement of performance for mass-storage
  products. These tests are performed on Sun systems and a geometric
  mean is calculated to generate a composite of the performance that a
  typical user might expect."


KEYBOARDS
=========

   Type 1
   ------

  No information.

   Type 2
   ------

  Type 2 keyboards were introduced with the Sun-2 model line (?). They
have large flat areas around the keys and have a distinctive
wedge-shaped profile. They have an RJ connector on the back and connect
to the CPU via an RJ cable. The mouse is completely separate on earlier
models; on later models such as the 2/50, the keyboard and mouse both
connect to an adapter which converts to a DB15. With this adapter, a
type 2 keyboard and Sun-2 mouse can be used with a Sun-3.

   Type 3
   ------

  Type 3 keyboards were introduced with the Sun-3 model line (?). They
have much smaller flat areas around the keys than a type 2 and the front
edge is curved downward rather than being a wedge. They connect to the
CPU with a male DB15 on the end of an integral coiled cable. The mouse
plugs into an RJ connector in the back of the keyboard.

  Since type 4 keyboards can be used with systems expecting a type 3
(see Misc Q&A #8) with only a connector adapter, presumably type 3
keyboards could be used with systems expecting a type 4.

  The pinout of the DB15 connector (on the CPU) is:

           1   RxD0 (keyboard)     8   GND
           2   GND                 9   GND
           3   TxD0 (keyboard)     10  VCC
           4   GND                 11  VCC
           5   RxD1 (mouse)        12  VCC
           6   GND                 14  VCC
           7   TxD1 (mouse)        15  VCC

   Type 4
   ------

  Type 4 keyboards were introduced with the 3/80, but are mostly used
on Sun-4 systems. They look like IBM PC 101-key keyboards. They have
8-pin DIN connectors on each side. One (doesn't matter which) connects
to a matching connector on the CPU; the mouse plugs into the other.

  Type 4 keyboards can be used with systems expecting a type 3 (see
Misc Q&A #8) with only a connector adapter.

  The pinout of the DIN-8 connector (female, on the CPU) is:

           7           1  GND              5  TxDA (Keyboard)
       8       6       2  GND              6  RxDA (Keyboard)
       5   4   3       3  Vcc              7  TxDB (Mouse)
         2   1         4  RxDB (Mouse)     8  Vcc

  Type 4 keyboards come in a variety of layouts for various countries.
The layout code is set with DIP switches hidden on the bottom of the
keyboard and can be retrieved with the KIOCLAYOUT ioctl. The switches
are under a pop-off plastic cover in one of the wells for the flip-down
keyboard feet. With the bottom row of the keyboard toward you and the
keys facing down, the rightmost six DIP switches govern the layout code.
The leftmost switch causes the keyboard to identify itself as a type 3
instead of a type 4, and the remaining switch does nothing (?).

   Type 5
   ------

  Type 5 keyboards are used with more recent Sun-4 models.

  Type 5 keyboards come in a variety of layouts for various countries,
as well as having a "UNIX" layout which changes the location of the
Control and Escape keys to their accustomed places. Six of the DIP
switches govern the layout code. Type 5 keyboards identify themselves as
type 4.

  Type 5 keyboards can be used with systems expecting a type 3 (see
Misc Q&A #8) with only a connector adapter.

   Type 5c
   -------

  Type 5c keyboards are the same as type 5, except that the keyboard
cable is captive.

   Alternatives
   ------------

  Ashok Desai no longer maintains the ergonomic keyboard FAQ, but has
kindly donated it for inclusion here:

       1. Kinesis Corp.(800-4-KINESIS or 206-402-8100, Fax : 206-402-8181)

       Kinesis sells an ergonomic keyboard for $390 and a Sun interface
       box for $149. A kit containing both sells for $490. This is a
       split keyboard with a fixed position and without tilt or
       rotational adjustments. The Sun interface box allows you to plug
       the keyboard to any Sun Workstation.

       The Kinesis interface box only connects the keyboard. It does
       not provide for a mouse or trackball. However, it should work
       with any PS/2-compatible keyboard.

       The Kinesis keyboard is available on-line in Safe comuting's
       Internet store for $331.50.

       2. KeyTronic (509-928-8000 or 800-262-6006)

       Keytronic sells an IBM compatible PC keyboard called Flex Pro
       whBich has the ability to separate the QWERTY section as well as
       the ability to adjust tilt and slope.

       3. Lexmark, Lexington KY (1-800-438-2468)

       Lexmark has IBM compatible keyboard named Select Ease Keyboard,
       Model M13(PN 1404600). The retail price is $179 ($199 with
       separate numeric keypad) and is available from major computer
       stores or directly from Lexmark. It has infinite adjustability
       features for the user and includes palm rest. The spacebar is
       divided in two halves to provide user the convenience of
       "Backspace" function in either half or none.

       The company has a free 30-day trial offer. If interested, please
       email Chris Stelmack ([email protected]). Use "Keyboard"
       as the subject. Further ordering instructions will be sent to
       you.

       4. Microsoft

       The Natural Ergonomic keyboard retails for $99. It is a split
       keyboard without tilt or slope adjustability. A long foot in the
       front allows you to have negative tilt. It has IBM PC compatible
       interface. You can buy it from any computer retailer. It should
       work if connected to a Sun via the Kinesis interface box.

       5. Health Care Keyboard Company (414 536-2160)

       Health Care Keyboard Company sells a Sun-compatible split
       keyboard, part number BPA9902SPK. The retail price is $715. This
       keyboard can be split into three pieces and has multiple angular
       adjustability through large gears. It won various awards and was
       featured on national TV media. THIS DOES NOT NEED A SUN
       INTERFACE BOX.


       Since input devices in general and ergonomic features in
       particular are very subjective to individual user's needs, you
       should review the product carefully before making a selection
       and investment of money.

       For most of the keyboards above, you need an interface box in
       order to use it with a Sun. The Kinesis interface box for Suns
       should work with any IBM PS/2-compatible keyboard.


MICE
====

   Sun-1
   -----

   Sun-2
   -----

  Optical mice, usually black, from Mouse Systems. They use a special
optical mouse pad with broad stripes. Cable with RJ connector which
connects either to the CPU directly or to an RJ-DB15 adapter (see type-2
keyboards above).

   Sun-3
   -----

  Optical mice, usually white, from Mouse Systems. They use the same
mouse pad as Sun-2 mice. Cable with RJ connector which connects to the
back of a type-3 keyboard.

   Sun-4
   -----

  Optical mice, usually white. They use a special optical mouse pad
with narrow stripes. Cable with DIN-8 connector which connects to a
type-4 or type-5 keyboard.

   Alternatives
   ------------

  Ren Tescher ([email protected]) maintains an unofficial trackball FAQ.

  In general, some models of trackballs from MicroSpeed (click'n'lock,
S-Trac), ITAC Systems (Mouse-Trak), Rollermouse, Evergreen Systems
(Diamond XX and XL-5), and Logitech are supposed to be Sun-compatible.

  The Logitech Trackman Mouse model T-CB1 is plug compatible with type 4
and 5 keyboards. According to Logitech, this model were OEM made for Sun
at their request.

  A Sun-compatible mechanical mouse (CP-1) is available as an x-option
(X494 A) on the SMCC price list.

  A Sun-compatible trackball is available from Kalleen's Computer
Products @ 1-800-262-1010 (PN CHP RM400-515, $94.32).


MONITORS
========

   Monitor standards
   -----------------

TTL MONO

  These are used with very early Sun-2 monochrome video cards. Digital
signals. DB9 connectors.

ECL/TTL MONO

  Only the video signals are ECL level; the sync signals are still TTL
level. Digital signals. DB9 connectors.

  These are used with later Sun-2 monochrome video cards, Sun-3
monochrome video, and Sun-4 monochrome video; probably Sun-386i
monochrome video as well. They connect to the video system via a DB-9.
The pinout of the DB-9 (on the video system) is:

           1   VIDEO+              6   VIDEO-
           3   HSYNC               7   GND
           4   VSYNC               8   GND
                                   9   GND

  There are two standard resolutions, 1152 by 900 (normal) and 1600 by
1280 (high). Until recently, the standard scanning frequencies for
normal resolution were 61.8KHz horizontal and 66Hz vertical. The
standard scanning frequencies for high resolution are 89.3KHz
horizontal, 67Hz vertical.

GRAYSCALE

  Grayscale monitors may be connected to mg-style monochrome or to
color framebuffers. They use analog signals. When connected to a color
framebuffer, the green signal is normally the one used.

COLOR

  "4BNC" connectors are, as might be expected, four BNC connectors:
red, green, blue, and sync. "13W3" is an unusual connector combining a
10-pin D-shell and analog three video conductors:

                                gray/          1  gnd*
       red   *   *              green blue     2  vertical sync*
        |   1o  2o  3o  4o  5o    |     |      3  sense #2
       (O)                       (O)   (O)     4  sense gnd
           6o  7o  8o  9o 10o                  5  composite sync
            *   *                              6  horizontal sync*
                                               7  gnd*
       * Considered obsolete, may not be       8  sense #1
         connected.                            9  sense #0
                                               10 composite gnd

  The codes for the three monitor-sense bits are:

       0 ???                   4 1152 x 900 76Hz 19"
       1 reserved              5 reserved
       2 1280 x 1024 76Hz      6 1152 x 900 76Hz 16-17"
       3 1152 x 900  66Hz      7 no monitor connected

   Models
   ------

365-1020        Sony 16" color monitor
       115VAC only, 4BNC connector. Operates at a resolution of 1152 x
       900, 66Hz vertical refresh rate, and 61.8KHz horizontal sync
       rate.

365-1063        Sony 16" color monitor
       Same as the 365-1020 but with a 13W3 connector.

365-1113        Sony 16" Multiscan monitor
       115/240VAC, FCC-B/VCCI-2, 13W3 connector. Operates at the
       following resolutions and sync frequencies:

               944 x 736   84Hz vert, 70.8KHz horiz  17" overscan
               1076 x 824  76Hz vert, 71.7KHz horiz  17" overscan
               1152 x 900  66Hz vert, 61.8KHz horiz  16" underscan
               1152 x 900  76Hz vert, 71.7KHz horiz  16" underscan
               1280 x 1024 67Hz vert, 71.7KHz horiz  16" underscan

365-1151        Sony 16" Multiscan monitor
       115/240VAC, FCC-B/VCCI-2, 13W3 connector on integral 1.2M video
       cable. Operates at the following resolutions and sync
       frequencies:

               1152 x 900  66Hz vert, 61.8KHz horiz
               1024 x 800  74Hz vert, 61.9KHz horiz

365-1159        Sony 16" Multiscan monitor
       Same as 365-1113, but has VLF.


FLOPPY DRIVES
=============

TAPE DRIVES
===========

   Formats
   -------

9-TRACK

  Half-inch reel-to-reel tapes.

QIC-11

  Quarter-inch cartridge tapes, maximum capacity 20M. The standard tape
drive for Sun-2's. Four tracks.

QIC-24

  Quarter-inch cartridge tapes, maximum capacity 60M. The standard tape
drive for Sun-3's. Nine tracks. Can also read and write QIC-11 tapes.
Note that there were actually two QIC-11 formats, one with only four
tracks (capacity 20M) and an extended one with nine tracks, which had
the same capacity as QIC-24 but slightly different formatting. SunOS
allows selection of QIC-24 or QIC-11 (by using different entries in
/dev) when using a QIC-24 drive, but does not distinguish between the
two varieties of QIC-11; if you write past the end of track four, a real
QIC-11 drive will not be able to read all the data. In general, this
doesn't matter unless you want to read the tape on a real QIC-11 drive,
or sometimes when making boot tapes.

QIC-150

  Quarter-inch cartridge tapes, maximum capacity 150M. Can read QIC-24
(and QIC-11?) tapes, but cannot write them (?).

   Models
   ------

xxx-xxxx        Archive 2150S
       Look at the back of the unit such that the SCSI connector is
       toward the bottom and the power connector is to the left. Below
       the power connector is a jumper block, made up of three rows of
       six pins each. Jumpers go from an odd-numbered column to the
       next even-numbered column (1 to 2, 3 to 4, 5 to 6), not crossing
       rows.

       row 1/cols 1-2 serial mode                      UNJUMPED by default
         Enables serial mode when jumped.

       row 2/cols 1-2 diagnostic mode                  UNJUMPED by default
         Enables diagnostic mode when jumped.

       row 3/cols 1-2 SCSI parity                      JUMPED by default
         Enables SCSI bus parity when jumped.

       cols 3-4    buffer disconnect size

                           buffer size (K)
                  2       4       6       8       12      16      24      32
                  --      --      --      --      --      --      --      --
           row 1: UN      UN      UN      UN      JU      JU      JU      JU
           row 2: UN      UN      JU      JU      UN      UN      JU      JU
           row 3: UN      JU      UN      JU      UN      JU      UN      JU

       cols 5-6    SCSI id
         Row 3 is the LSB and row 1 the MSB.

             END OF PART V OF THE SUN HARDWARE REFERENCE

==============================================================================

PART VI
                               =======
                              APPENDICES


APPENDICES
==========

   Cardcage configuration tables
   -----------------------------

  How to use the cardcage configuration tables:

  Boards are listed in order of priority, from top to bottom. If two
boards would prefer to be installed in the same slot, whichever board is
toward the top of the table wins, unless the lower board cannot be
installed in any other slot.

  Many boards can be installed in any of several slots. The most
desirable slot is indicated with "A", the second most desirable with
"B", and so on.

  Note that many boards are unfortunately not listed. Also note that
these are only the official Sun-recommended board orders (except where
specifically noted); in many cases boards will work in other slots.
Consult the listings for the individual boards. Note that memory boards
usually need to be in the recommended positions, since there is usually
a special memory bus in the backplane to which all memory boards must
connect.

  Note that the configurations below represent the cardcage tables
dated 6/8/88. Sometimes there are major changes in preferred slots
between cardcage table revisions. If you think you need an older version
(5/13/87 is available), send me email (remind me that 5/13/87 is in
revision 1.1 of part 7, please).

MULTIBUS

   2/120

       board                   slot:   1  2  3  4  5  6  7  8  9

       CPU 501-1007/1051               A  -  -  -  -  -  -  -  -
       1st memory 501-1013/1048        -  A  -  -  -  -  -  -  -
       2nd memory 501-1013/1048        -  -  A  -  -  -  -  -  -
       3rd memory 501-1013/1048        -  -  -  A  -  -  -  -  -
       4th memory 501-1013/1048        -  -  -  -  A  -  -  -  -
       5th memory 501-1013/1048 * #    -  -  -  -  -  A  -  -  -
       ALM-8 USART 370-1046 *          -  -  -  -  -  A  -  -  -
       ALM-8 controller 370-1047       -  -  -  -  -  -  A  -  -
       mono framebuffer 501-1003/1052* -  -  -  -  B  A  -  -  -
       1st SCP 370-1049                -  -  -  -  -  -  A  B  -
       2nd SCP 370-1049                -  -  -  -  -  -  -  A  B
       SCSI/serial 501-1006            -  -  -  B  A  -  C  D  E
       1st Ethernet 501-1004/370-0288  -  -  A  B  C  -  D  E  F
       2nd Ethernet 501-1004/370-0288  -  -  -  A  B  -  C  D  E
       1st 1/2" tape **                -  -  -  -  -  -  A  B  C
       2nd 1/2" tape **                -  -  -  -  -  -  -  A  B
       1st Xylogics 450 SMD 370-1012   -  -  -  -  -  -  A  B  C
       2nd Xylogics 450 SMD 370-1012   -  -  -  -  -  -  -  A  B
       Sky FFP 370-1021                -  -  -  -  -  -  A  B  C
       Color processor 501-0461        -  -  F  E  D  -  C  B  A

       *  In older backplanes (501-1090), slot 6 must be occupied by
          either a monochrome framebuffer board or a P2 terminator
          board. Newer backplanes do not need external P2 termination.

       ** Either the Computer Products Corporation TAPEMASTER
          (370-0502?/0167?) or the Xylogics 472 1/2" 6250bpi tape
          controller (370-0502?).

       #  Memory boards have been confirmed to work in slot six of a
          2/120 with a newer backplane.

   2/170

       board           slot:   1  2  3  4  5  6  7  8  9 10 11 12 13 14 15
       CPU 501-1007/1051       A  -  -  -  -  -  -  -  -  -  -  -  -  -  -
       1st mem 501-1013/1048   -  A  -  -  -  -  -  -  -  -  -  -  -  -  -
       2nd mem 501-1013/1048   -  -  A  -  -  -  -  -  -  -  -  -  -  -  -
       3rd mem 501-1013/1048   -  -  -  A  -  -  -  -  -  -  -  -  -  -  -
       4th mem 501-1013/1048   -  -  -  -  A  -  -  -  -  -  -  -  -  -  -
       5th mem 501-1013/1048 # -  -  -  -  -  A  -  -  -  -  -  -  -  -  -
       mono fb 501-1003/1052   -  -  -  -  -  A  -  -  -  -  -  -  -  -  -
       1st SCP 370-1049        -  -  -  -  -  -  A  -  -  -  -  -  -  -  -
       2nd SCP 370-1049        -  -  -  -  -  -  -  A  -  -  -  -  -  -  -
       SCSI/serial 501-1006    -  -  -  B  A  -  C  D  E  -  -  -  -  -  -
       1st Ethernet *          -  -  A  B  C  -  D  E  F  G  -  -  -  -  -
       2nd Ethernet *          -  -  -  A  B  -  C  D  E  F  G  -  -  -  -
       1st 1/2" tape **        -  -  -  -  -  -  A  B  C  D  E  F  -  -  -
       2nd 1/2" tape **        -  -  -  -  -  -  -  A  B  C  D  E  F  -  -
       1st SMD 370-1012 ##     -  -  -  -  -  -  A  B  C  D  E  F  G  H  -
       2nd SMD 370-1012 ##     -  -  -  -  -  -  -  A  B  C  D  E  F  G  H
       Sky FFP 370-1021        -  -  -  -  -  -  A  B  C  D  E  F  G  H  I
       Color proc 501-0461     -  -  -  -  -  -  -  -  -  -  -  -  -  -  A
       ALM-14 ctrl 370-1047    -  -  -  -  -  -  A  B  C  D  E  F  G  H  I
       ALM-14 USART 370-1048   -  -  -  -  -  -  -  A  B  C  D  E  F  G  H

       *  Either the Sun 501-1004 or the 3COM 370-0288.

       ** Either the Computer Products Corporation TAPEMASTER
          (370-0502?/0167?) or the Xylogics 472 1/2" 6250bpi tape
          controller (370-0502?).

       #  Memory boards have been confirmed to work in slot six of a
          2/120, and should work in a 2/170.

       ## Xylogics 450.


VME

  Note that VME cards frequently have "springfingers" on their rear
edges, metal strips that are installed between the edge of the PC board
and the outer panel to reduce RFI emissions, with serrated metal
"fingers" protruding from either side of the strip. If a board with
springfingers is installed next to a board without springfingers, there
must be a plastic insulator shield over the fingers on the side toward
the fingerless board, to prevent possible shorting of component leads to
the springfingers.

  VME cardcages (except for the 2/50 and the 3/75) also have jumpers on
the backplane itself, one set per slot, which must be set appropriately
for the board in the corresponding slot. These jumpers are marked Px0y,
where x is the number of the slot and y is the number of the jumper.
Jumpers Px00, Px01, and Px02 must always be installed in normal use.
Jumpers Px03 (BG3) and Px04 (IACK) are installed according to the board
in the slot, and always installed for empty slots. Note that 2/130 and
2/160 systems shipped before 11/1/85 did not have these jumpers
installed by default. The highest-numbered slot is usually (always?)
missing Px04. Note that the jumpers are usually (always?) on the
opposite side of the backplane from the VME connectors and are usually
(always?) accessed via a panel in the front of the machine.

   2/50

       board                   slot:   1  2

       CPU 501-1141/1142/1143 *        A  -
       memory/SCSI/FFP **              -  A

       *  501-1141     1M CPU
          501-1142     2M CPU
          501-1143     4M CPU

       ** 501-1020     1M memory
          501-1046     2M memory
          501-1067     3M memory
          501-1047     4M memory
          501-1079     0M memory
          501-1147     501-1079 0M memory + 501-1045 "Sun-2" SCSI
          501-1148     501-1079 0M memory + 370-1029 Sky FFP

          The 501-1045 "Sun-2" SCSI and 370-1029 Sky FFP may also be
          piggybacked on the 1-4M memory boards, but there is no
          separate part number for these combinations.

   2/130, 2/160

       board           slot:   1  2  3  4& 5  6  7  8  9 10 11 12 Px03 Px04
       CPU 501-1144/1145/1146* A  -  -  -  -  -  -  -  -  -  -  -  UN   UN
       memory **               -  A  -  -  -  -  -  -  -  -  -  -  JU   JU
       GP 501-1055             -  -  A  -  -  -  -  -  -  -  -  -  UN   UN
       GB 501-1058             -  -  -  A  -  -  -  -  -  -  -  -  JU   JU
       color fb 501-1014/1116  -  -  -  -  A  -  -  -  -  -  -  -  JU   UN
       ALM-1 501-1157 &&       -  -  -  -  -  -  -  -  -  -  -  A  UN   N/A
       SCSI 501-1149           -  -  -  -  -  A  -  -  -  -  -  -  UN   UN
       1st SCP 501-1158 &      -  -  A  B  C  D  E  -  -  -  -  -  UN   UN
       2nd SCP 501-1158 &      -  -  -  A  B  C  D  E  -  -  -  -  UN   UN
       1st MAPKIT 501-1202 & # -  -  A  A  C  C  E  E  G  G  -  -  UN   UN
                               -  -  -  B  B  D  D  F  F  -  -  -
       2nd MAPKIT 501-1202 & # -  -  -  -  A  A  C  C  E  E  G  G  UN   UN
                               -  -  -  -  -  B  B  D  D  F  F  -
       1st 1/2" tape ctrl ## @ -  -  A  B  C  D  E  F  G  H  I  J  UN   UN
       2nd 1/2" tape ctrl ## @ -  -  -  A  B  C  D  E  F  G  H  I  UN   UN
       1st SMD ctrl @ @@       -  -  A  B  C  D  E  F  G  H  I  J  UN   UN
       2nd SMD ctrl @ @@       -  -  -  A  B  C  D  E  F  G  H  I  UN   UN
       Sky FFP 501-1151        -  -  -  -  A  B  C  D  E  F  G  H  JU   JU
       2nd Ethernet 501-1153   -  -  A  B  C  D  E  F  G  H  I  J  UN   UN
       1st IPC 501-1125        -  -  -  -  -  -  -  -  -  B  -  A  JU   UN
       2nd IPC 501-1125        -  -  -  -  -  -  -  -  B  -  A  -  JU   UN
       3rd IPC 501-1125        -  -  -  -  -  -  -  B  -  A  -  -  JU   UN
       4th IPC 501-1125        -  -  -  -  -  -  B  -  A  -  -  -  JU   UN

       *  501-1144     1M CPU
          501-1145     2M CPU
          501-1146     4M CPU

       ** 501-1070     1M memory
          501-1096     2M memory
          501-1071     3M memory
          501-1097     4M memory

       &  Slot 4 cannot be populated with other than a 501-1058
          graphics buffer (GB) when a 501-1055 graphics processor (GP)
          is in slot 3, unless the Multibus-VME converter (used on the
          GP?) is 501-1054-04 rev A or later. Otherwise, there will be
          contention on the "GP/GB bus".

       && The 501-1157 ALM-1 covers two slots (11 and 12) but only
          connects electrically to 12. Hence, treat slot 11 as empty
          (i.e. jump both P1103 and P1104).

       #  The 501-1202 MAPKIT covers two slots but only connects
          electrically to the lower-numbered slot. Hence, treat the
          higher-numbered slot as empty (i.e. jump both Px03 and Px04).

       ## 501-1155     Xylogics 472 1/2" tape controller (6250bpi)
          501-1156     CPC 1/2" tape controller (1600bpi)

       @  Do not place either a 1/2" tape controller or an SMD
          controller in a slot to the left of the SCSI board. Doing so
          may adversely impact the functionality of the SCSI subsystem.

       @@ 501-1154     Xylogics 450 SMD controller in Multibus-VME converter
          501-1166     Xylogics 451 SMD controller in Multibus-VME converter

   3/75

       board                   slot:   1  2

       CPU 501-1163/1164 *             A  -
       memory/SCSI **                  -  A

       *  501-1163     2M CPU
          501-1164     4M CPU

       ** 501-1111     2M memory
          501-1122     4M memory
          501-1121     0M memory
          501-1172     501-1121 0M memory + 501-1045 "Sun-2" SCSI

          The 501-1045 "Sun-2" SCSI may also be piggybacked on the 2M
          or 4M memory boards, but there is no separate part number for
          these combinations.

          The 501-1236 "Sun-3" SCSI had not been qualified for use in
          the 3/75 as of June 1988.

   3/110

       board           slot:   1  2* 3* Px03 Px04
       CPU 501-1134/1209       A  -  -   UN   UN
       1st 4M RAM 501-1132     -  A  -   JU   JU
       2nd 4M RAM 501-1132     -  -  A   JU   JU
       FPA 501-1105            -  A  B   JU   JU
       1st SCP 501-1158 *      -  A  B   UN   UN
       2nd SCP 501-1158 *      -  -  A   UN   UN
       1st MCP 501-1221 !      -  A  B   UN   UN
       2nd MCP 501-1221 !      -  -  A   UN   UN
       1st ALM-2 501-1203 !    -  A  B   UN   UN
       2nd ALM-2 501-1203 !    -  -  A   UN   UN
       MAPKIT 501-1202 **      -  A  A   UN   UN
       SCSI 501-1138/1217      -  B  A   UN   UN
       2nd Ethernet 501-1153 * -  B  A   UN   UN
       1st IPC 501-1125        -  B  A   JU   UN
       2nd IPC 501-1125        -  A  -   JU   UN

       *  If you wish to install a Multibus-VME converter-based board
          in slots 2 or 3, you just use converters 501-1054-04 rev A
          or later to avoid contention on the P2 memory bus.

       ** The 501-1202 MAPKIT covers slots 2 and 3 but only connects
          electrically to slot 2. Hence, treat slot 3 as empty (i.e.
          jump both P303 and P304).

       !  See "Important Note about ALM and MCP products", below.

   3/140

       board           slot:   1  2* 3* Px03 Px04
       CPU ##                  A  -  -   UN   UN
       1st memory **           -  A  -   JU   JU
       2nd memory **           -  -  A   JU   JU
       FPA 501-1105            -  A  B   JU   JU
       1st SCP 501-1158 *      -  A  B   UN   UN
       2nd SCP 501-1158 *      -  -  A   UN   UN
       1st MCP 501-1221 !      -  A  B   UN   UN
       2nd MCP 501-1221 !      -  -  A   UN   UN
       1st ALM-2 501-1203 !    -  A  B   UN   UN
       2nd ALM-2 501-1203 !    -  -  A   UN   UN
       MAPKIT 501-1202 #       -  A  A   UN   UN
       SCSI 501-1138/1217      -  B  A   UN   UN
       2nd Ethernet 501-1153 * -  B  A   UN   UN
       1st IPC 501-1125        -  B  A   JU   UN
       2nd IPC 501-1125        -  A  -   JU   UN

       *  If you wish to install a Multibus-VME converter-based board
          in slots 2 or 3, you just use converters 501-1054-04 rev A
          or later to avoid contention on the P2 memory bus.

       ** 501-1131     2M memory
          501-1132     4M memory

       #  The 501-1202 MAPKIT covers slots 2 and 3 but only connects
          electrically to slot 2. Hence, treat slot 3 as empty (i.e.
          jump both P303 and P304).

       ## 501-1163     2M CPU
          501-1164     4M CPU
          501-1208     4M CPU

       !  See "Important Note about ALM and MCP products", below.

   3/150

       board           slot:   1  2# 3# 4# 5# 6# Px03 Px04
       CPU *                   A  -  -  -  -  -  UN   UN
       1st 4M memory 501-1132  -  A  -  -  -  -  JU   JU
       FPA 501-1105            -  -  -  A  -  -  JU   JU
       2nd 4M memory 501-1132  -  -  A  -  -  -  JU   JU
       3rd 4M memory 501-1132  -  -  -  A  -  -  JU   JU
       GP/GP+/GP2 ** % %%      -  -  -  -  A  -  UN   UN
       GB 501-1058 # %         -  -  -  -  -  A  JU   JU
       ALM-1 501-1157 # ## !   -  -  -  -  -  A  UN   N/A
       1st SCP 501-1158 #      -  A  B  C  D  E  UN   UN
       2nd SCP 501-1158 #      -  -  A  B  C  D  UN   UN
       1st MCP 501-1221 !      -  A  B  C  D  E  UN   UN
       2nd MCP 501-1221 !      -  -  A  B  C  D  UN   UN
       3rd MCP 501-1221 !      -  -  -  A  B  C  UN   UN
       4th MCP 501-1221 !      -  -  -  -  A  B  UN   UN
       1st ALM-2 501-1203 !    -  A  B  C  D  E  UN   UN
       2nd ALM-2 501-1203 !    -  -  A  B  C  D  UN   UN
       3rd ALM-2 501-1203 !    -  -  -  A  B  C  UN   UN
       4th ALM-2 501-1203 !    -  -  -  -  A  B  UN   UN
       SunLink Channel Adpt @  -  A  A  C  C  -  UN   UN
                               -  -  B  B  D  D
       1st MAPKIT 501-1202 @@  -  A  A  C  C  -  UN   UN
                               -  -  B  B  D  D
       2nd MAPKIT 501-1202 @@  -  -  -  A  A  -  UN   UN
                               -  -  -  -  B  B
       SCSI 501-1138/1217      -  A  B  C  D  E  UN   UN
       Sun-2 clr 501-1014 & %  -  A  B  C  D  E  JU   UN
       cg3 color 501-1116 & %  -  A  B  C  D  E  JU   UN
       cg5 color 501-1267 & $  -  A  B  C  D  E  JU   UN w/o GP or GP+
        "    "    "   "   && $ -  A  B  C  -  -  JU   UN with GP or GP+
        "    "    "   "   %%   -  -  -  -  -  A  JU   UN with GP2
       2nd Ethernet 501-1153 # -  A  B  C  D  E  UN   UN
       1st IPC 501-1125        -  A  B  C  D  E  JU   UN
       2nd IPC 501-1125        -  -  A  B  C  D  JU   UN

       *  501-1163     2M CPU
          501-1164     4M CPU
          501-1208     4M CPU

       ** 501-1055     Graphics Processor
          501-1139     Graphics Processor Plus
          501-1268     Graphics Processor 2

       &  The 501-1014 Sun-2 color framebuffer, 501-1116 cg3 color
          framebuffer, and 501-1267 cg5 color framebuffer are mutually
          exclusive.

       && When installed with either the 501-1055 graphics processor or
          the 501-1139 graphics processor plus, the cg5 may be
          installed in slots 2-4 only.

       $  The gp5's P2 bus must be disabled.

       #  If you wish to install a Multibus-VME converter-based board
          in slots 2-4, you just use converters 501-1054-04 rev A or
          later to avoid contention on the P2 memory bus.

          If you wish to install a Multibus-VME converted-based board
          in slots 5-6 and any combination of GP and GP boards are
          installed, you must use converters 501-1054-04 rev A or later
          to avoid contention on the GP/GB private bus.

       ## The 501-1157 ALM-1 covers slots 5 and 6 but only connects
          electrically to slot 6. Hence, treat slot 5 as empty (i.e.
          jump both P503 and P504).

       %  The 501-1268 GP2 will not function if any of the 501-1058
          graphics buffer, the 501-1116 Sun-3 color board (cg3), or the
          501-1014 Sun-2 color board are installed.

       %% The GP2 communicates with the 501-1267 cg5 over a private P2
          bus which must be enabled on the cg5 by a hardware switch
          setting. The cg5 must also be installed in slot 6.

       @  The 370-1128 SunLink Channel Adapter uses two slots. The Px03
          and Px04 jumpers must be unjumpered for both slots.
          Additionally, do not place a 1/2" tape controller or an SMD
          disk controller in a slot between the channel adapter and the
          CPU, or the channel adapter's throughput may be adversely
          affected.

       @@ The 501-1202 MAPKIT covers two slots but only connects
          electrically to the slot nearest slot 1. Hence, treat the
          other slot as empty (i.e. jump both Px03 and Px04).

       !  See "Important Note about ALM and MCP products", below.

   3/160 using internal-connection-only or internal/external SCSI controller
         (for systems without a SCSI controller, use the "3/180 using
         external-connection-only SCSI controller" table below)

       board           slot:   1  2#^3# 4# 5# 6# 7  8  9 10#11#12#Px03 Px04
       CPU *                   A  -  -  -  -  -  -  -  -  -  -  -  UN   UN
       1st memory $$           -  -  -  -  A  -  -  -  -  -  -  -  JU   JU
       2nd memory $$           -  -  -  A  -  -  -  -  -  -  -  -  JU   JU
       3rd memory $$           -  -  A  -  -  -  -  -  -  -  -  -  JU   JU
       FPA 501-1105            -  -  -  -  -  A  -  -  -  -  -  -  JU   JU
       GP/GP+/GP2 ** % %%      -  -  -  -  -  -  -  -  -  A  -  -  UN   UN
       GB 501-1058 # %         -  -  -  -  -  -  -  -  -  -  A  -  JU   JU
       TAAC-1 501-1383 ~       -  -  -  -  -  -  -  -  -  A  -  -  JU   JU
       ALM-1 501-1157 # ## !   -  -  -  -  -  -  -  -  -  -  -  A  UN   N/A
       SCSI 501-1149/1167/1170 -  -  -  -  -  -  A  -  -  -  -  -  UN   UN
       1st SCP 501-1158 #      -  E  A  B  C  D  -  -  -  -  -  -  UN   UN
       2nd SCP 501-1158 #      -  D  -  A  B  C  E  F  -  -  -  -  UN   UN
       1st MCP 501-1221 !      -  E  A  B  C  D  F  G  H  -  -  -  UN   UN
       2nd MCP 501-1221 !      -  D  -  A  B  C  E  F  G  H  I  J  UN   UN
       3rd MCP 501-1221 !      -  C  -  -  A  B  D  E  F  G  H  I  UN   UN
       4th MCP 501-1221 !      -  B  -  -  -  A  C  D  E  F  G  H  UN   UN
       1st ALM-2 501-1203 !    -  E  A  B  C  D  F  G  H  I  J  K  UN   UN
       2nd ALM-2 501-1203 !    -  D  -  A  B  C  E  F  G  H  I  J  UN   UN
       3rd ALM-2 501-1203 !    -  C  -  -  A  B  D  E  F  G  H  I  UN   UN
       4th ALM-2 501-1203 !    -  B  -  -  -  A  C  D  E  F  G  H  UN   UN
       1st SunLink Chnl Adpt @ -  A  A  C  C  E  E  G  G  I  I  -  UN   UN
                               -  -  B  B  D  D  F  F  H  H  J  J
       2nd SunLink Chnl Adpt @ -  -  -  A  A  C  C  E  E  G  G  -  UN   UN
                               -  -  -  -  B  B  D  D  F  F  H  H
       1st MAPKIT 501-1202 @@  -  A  A  C  C  E  E  G  G  I  I  -  UN   UN
                               -  -  B  B  D  D  F  F  H  H  J  J
       2nd MAPKIT 501-1202 @@  -  -  -  A  A  C  C  E  E  G  G  -  UN   UN
                               -  -  -  -  B  B  D  D  F  F  H  H
       2nd Ethernet 501-1153 # -  E  A  B  C  D  F  G  H  I  J  K  UN   UN
       1st IPC 501-1125        -  E  A  B  C  D  F  G  H  I  J  K  JU   UN
       2nd IPC 501-1125        -  D  -  A  B  C  E  F  G  H  I  J  JU   UN
       3rd IPC 501-1125        -  C  -  -  A  B  D  E  F  G  H  I  JU   UN
       4th IPC 501-1125        -  B  -  -  -  A  C  D  E  F  G  H  JU   UN
       1st 1/2" tape !! #      -  -  -  -  -  -  A  B  C  D  E  F  UN   UN
       2nd 1/2" tape !! #      -  -  -  -  -  -  -  A  B  C  D  E  UN   UN
       1st SMD ~~ #            -  -  -  -  -  -  A  B  C  D  E  F  UN   UN
       2nd SMD ~~ #            -  -  -  -  -  -  -  A  B  C  D  E  UN   UN
       Sun-2 clr 501-1014 & %  -  K  A  B  C  D  E  F  G  H  I  J  JU   UN
       cg3 color 501-1116 & %  -  K  A  B  C  D  E  F  G  H  I  J  JU   UN
       cg5 color 501-1267 & $  -  K  A  B  C  D  E  F  G  H  I  J  JU   UN w/o GP or GP+
        "    "    "   "   && $ -  H  A  B  C  D  E  F  G  -  -  -  JU   UN with GP or GP+
        "    "    "   "   %%   -  -  -  -  -  -  -  -  -  -  A  B  JU   UN with GP2

       *  501-1163     2M CPU
          501-1164     4M CPU
          501-1208     4M CPU

       ** 501-1055     Graphics Processor
          501-1139     Graphics Processor Plus
          501-1268     Graphics Processor 2

       &  The 501-1014 Sun-2 color framebuffer, 501-1116 cg3 color
          framebuffer, and 501-1267 cg5 color framebuffer are mutually
          exclusive.

       && When installed with either the 501-1055 graphics processor or
          the 501-1139 graphics processor plus, the cg5 may be
          installed in slots 2-9 only.

       $  The gp5's P2 bus must be disabled.

       $$ 501-1131     2M memory
          501-1132     4M memory

       !  See "Important Note about ALM and MCP products", below.

       !! 501-1156     CPC 1/2" tape controller (1600 BPI)
          501-1155     Xylogics 472 1/2" tape controller (6250 BPI)

       ~  The 501-1383 TAAC-1 consumes three spaces (slots 10, 11, and
          12). Besides jumpering P1003 and P1004 as shown in the table
          above, P1103, P1104, and P1203 must be jumpered (P1204 does
          not exist).

       ~~ 501-1154     Xylogics 450 SMD controller in Multibus-VME converter
          501-1166     Xylogics 451 SMD controller in Multibus-VME converter

       %  The 501-1268 GP2 will not function if any of the 501-1058
          graphics buffer, the 501-1116 Sun-3 color board (cg3), or the
          501-1014 Sun-2 color board are installed.

       %% The GP2 communicates with the 501-1267 cg5 over a private P2
          bus which must be enabled on the cg5 by a hardware switch
          setting. The cg5 must also be installed in slot 11 or 12.

       #  If you wish to install a Multibus-VME converter-based board
          in slots 2-6, you just use converters 501-1054-04 rev A or
          later to avoid contention on the P2 memory bus.

          If you wish to install a Multibus-VME converted-based board
          in slots 10-12 and any combination of GP and GP boards are
          installed, you must use converters 501-1054-04 rev A or later
          to avoid contention on the GP/GB private bus.

       ## The 501-1157 ALM-1 covers slots 11 and 12 but only connects
          electrically to slot 12. Hence, treat slot 11 as empty (i.e.
          jump both P1103 and P1104).

       @  The 370-1128 SunLink Channel Adapter uses two slots. The Px03
          and Px04 jumpers must be unjumpered for both slots.
          Additionally, do not place a 1/2" tape controller or an SMD
          disk controller in a slot between the channel adapter and the
          CPU, or the channel adapter's throughput may be adversely
          affected.

       @@ The 501-1202 MAPKIT covers two slots but only connects
          electrically to the slot nearest slot 1. Hence, treat the
          other slot as empty (i.e. jump both Px03 and Px04).
          Additionally, do not place a 1/2" tape controller or an SMD
          disk controller in a slot between the MAPKIT and the CPU, or
          the MAPKIT's throughput may be adversely affected.

       ^  Avoid using slot 2 until absolutely necessary, to aid cooling
          of the CPU board. That is, if there is another slot available
          in which a board can be installed (even if it is not the most
          preferred slot) without impacting the functionality of
          another board, it should be installed in that slot instead of
          slot 2.

   3/180 using external-connection-only SCSI controller

       board           slot:   1  2# 3# 4# 5# 6# 7  8  9 10#11#12#Px03 Px04
       CPU *                   A  -  -  -  -  -  -  -  -  -  -  -  UN   UN
       1st memory $$           -  A  -  -  -  -  -  -  -  -  -  -  JU   JU
       2nd memory $$           -  -  A  -  -  -  -  -  -  -  -  -  JU   JU
       3rd memory $$           -  -  -  A  -  -  -  -  -  -  -  -  JU   JU
       FPA 501-1105            -  -  -  -  -  A  -  -  -  -  -  -  JU   JU
       GP/GP+/GP2 ** % %%      -  -  -  -  -  -  -  -  -  A  -  -  UN   UN
       GB 501-1058 # %         -  -  -  -  -  -  -  -  -  -  A  -  JU   JU
       TAAC-1 501-1383 ~       -  -  -  -  -  -  -  -  -  A  -  -  JU   JU
       1st ALM-1 501-1165 # !  -  -  -  -  -  -  -  -  -  -  -  A  UN   N/A
       2nd ALM-1 501-1165 # !  -  -  -  -  -  -  -  -  -  -  A  -  UN   UN
       3rd ALM-1 501-1165 # !  -  -  -  -  -  -  -  -  -  A  -  -  UN   UN
       1st SCP 501-1158 #      -  A  B  C  D  -  -  -  -  -  -  -  UN   UN
       2nd SCP 501-1158 #      -  -  A  B  C  D  E  -  -  -  -  -  UN   UN
       1st MCP 501-1221 !      -  A  B  C  D  E  F  G  -  -  -  -  UN   UN
       2nd MCP 501-1221 !      -  -  A  B  C  D  E  F  G  -  -  -  UN   UN
       3rd MCP 501-1221 !      -  -  -  A  B  C  D  E  F  G  H  I  UN   UN
       4th MCP 501-1221 !      -  -  -  -  A  B  C  D  E  F  G  H  UN   UN
       1st ALM-2 501-1203 !    -  A  B  C  D  E  F  G  H  I  J  K  UN   UN
       2nd ALM-2 501-1203 !    -  -  A  B  C  D  E  F  G  H  I  J  UN   UN
       3rd ALM-2 501-1203 !    -  -  -  A  B  C  D  E  F  G  H  I  UN   UN
       4th ALM-2 501-1203 !    -  -  -  -  A  B  C  D  E  F  G  H  UN   UN
       1st SunLink Chnl Adpt @ -  A  A  C  C  E  E  G  G  I  I  -  UN   UN
                               -  -  B  B  D  D  F  F  H  H  J  J
       2nd SunLink Chnl Adpt @ -  -  -  A  A  C  C  E  E  G  G  -  UN   UN
                               -  -  -  -  B  B  D  D  F  F  H  H
       1st MAPKIT 501-1202 @@  -  A  A  C  C  E  E  G  G  I  I  -  UN   UN
                               -  -  B  B  D  D  F  F  H  H  J  J
       2nd MAPKIT 501-1202 @@  -  -  -  A  A  C  C  E  E  G  G  -  UN   UN
                               -  -  -  -  B  B  D  D  F  F  H  H
       SCSI 501-1138/1217      -  A  B  C  D  E  F  G  H  I  J  K  UN   UN
       Sun-2 clr 501-1014 & %  -  A  B  C  D  E  F  G  H  I  J  K  JU   UN
       cg3 color 501-1116 & %  -  A  B  C  D  E  F  G  H  I  J  K  JU   UN
       cg5 color 501-1267 & $  -  A  B  C  D  E  F  G  H  I  J  K  JU   UN w/o GP or GP+
        "    "    "   "   && $ -  A  B  C  D  E  F  G  H  -  -  -  JU   UN with GP or GP+
        "    "    "   "   %%   -  -  -  -  -  -  -  -  -  -  A  B  JU   UN with GP2
       2nd Ethernet 501-1153 # -  A  B  C  D  E  F  G  H  I  J  K  UN   UN
       1st IPC 501-1125        -  A  B  C  D  E  F  G  H  I  J  K  JU   UN
       2nd IPC 501-1125        -  -  A  B  C  D  E  F  G  H  I  J  JU   UN
       3rd IPC 501-1125        -  -  -  A  B  C  D  E  F  G  H  I  JU   UN
       4th IPC 501-1125        -  -  -  -  A  B  C  D  E  F  G  H  JU   UN
       1st 1/2" tape !! #      -  A  B  C  D  E  F  G  H  I  J  K  UN   UN
       2nd 1/2" tape !! #      -  -  A  B  C  D  E  F  G  H  I  J  UN   UN
       1st SMD ~~ #            -  A  B  C  D  E  F  G  H  I  J  K  UN   UN
       2nd SMD ~~ #            -  -  A  B  C  D  E  F  G  H  I  J  UN   UN

       *  501-1163     2M CPU
          501-1164     4M CPU
          501-1208     4M CPU

       ** 501-1055     Graphics Processor
          501-1139     Graphics Processor Plus
          501-1268     Graphics Processor 2

       &  The 501-1014 Sun-2 color framebuffer, 501-1116 cg3 color
          framebuffer, and 501-1267 cg5 color framebuffer are mutually
          exclusive.

       && When installed with either the 501-1055 graphics processor or
          the 501-1139 graphics processor plus, the cg5 may be
          installed in slots 2-9 only.

       $  The gp5's P2 bus must be disabled.

       $$ 501-1131     2M memory
          501-1132     4M memory

       %  The 501-1268 GP2 will not function if any of the 501-1058
          graphics buffer, the 501-1116 Sun-3 color board (cg3), or the
          501-1014 Sun-2 color board are installed.

       %% The GP2 communicates with the 501-1267 cg5 over a private P2
          bus which must be enabled on the cg5 by a hardware switch
          setting. The cg5 must also be installed in slot 11 or 12.

       !  See "Important Note about ALM and MCP products", below.

       !! 501-1156     CPC 1/2" tape controller (1600 BPI)
          501-1155     Xylogics 472 1/2" tape controller (6250 BPI)

       ~  The 501-1383 TAAC-1 consumes three spaces (slots 10, 11, and
          12). Besides jumpering P1003 and P1004 as shown in the table
          above, P1103, P1104, and P1203 must be jumpered (P1204 does
          not exist).

       ~~ 501-1154     Xylogics 450 SMD controller in Multibus-VME converter
          501-1166     Xylogics 451 SMD controller in Multibus-VME converter

       #  If you wish to install a Multibus-VME converter-based board
          in slots 2-6, you just use converters 501-1054-04 rev A or
          later to avoid contention on the P2 memory bus.

          If you wish to install a Multibus-VME converted-based board
          in slots 10-12 and any combination of GP and GP boards are
          installed, you must use converters 501-1054-04 rev A or later
          to avoid contention on the GP/GB private bus.

       @  The 370-1128 SunLink Channel Adapter uses two slots. The Px03
          and Px04 jumpers must be unjumpered for both slots.
          Additionally, do not place a 1/2" tape controller or an SMD
          disk controller in a slot between the channel adapter and the
          CPU, or the channel adapter's throughput may be adversely
          affected.

       @@ The 501-1202 MAPKIT covers two slots but only connects
          electrically to the slot nearest slot 1. Hence, treat the
          other slot as empty (i.e. jump both Px03 and Px04).
          Additionally, do not place a 1/2" tape controller or an SMD
          disk controller in a slot between the MAPKIT and the CPU, or
          the MAPKIT's throughput may be adversely affected.

   3/180 using internal-connection-only or internal/external SCSI controller

       board           slot:   1  2# 3# 4# 5# 6# 7  8  9 10#11#12#Px03 Px04
       CPU *                   A  -  -  -  -  -  -  -  -  -  -  -  UN   UN
       1st memory $$           -  A  -  -  -  -  -  -  -  -  -  -  JU   JU
       2nd memory $$           -  -  A  -  -  -  -  -  -  -  -  -  JU   JU
       3rd memory $$           -  -  -  A  -  -  -  -  -  -  -  -  JU   JU
       FPA 501-1105            -  -  -  -  -  A  -  -  -  -  -  -  JU   JU
       GP/GP+/GP2 ** % %%      -  -  -  -  -  -  -  -  -  A  -  -  UN   UN
       GB 501-1058 # %         -  -  -  -  -  -  -  -  -  -  A  -  JU   JU
       TAAC-1 501-1383 ~       -  -  -  -  -  -  -  -  -  A  -  -  JU   JU
       1st ALM-1 501-1165 # !  -  -  -  -  -  -  -  -  -  -  -  A  UN   N/A
       2nd ALM-1 501-1165 # !  -  -  -  -  -  -  -  -  -  -  A  -  UN   UN
       3rd ALM-1 501-1165 # !  -  -  -  -  -  -  -  -  -  A  -  -  UN   UN
       SCSI 501-1149/1167/1170 -  -  -  -  -  -  A  -  -  -  -  -  UN   UN
       1st SCP 501-1158 #      -  A  B  C  D  -  -  -  -  -  -  -  UN   UN
       2nd SCP 501-1158 #      -  -  A  B  C  D  -  E  -  -  -  -  UN   UN
       1st MCP 501-1221 !      -  A  B  C  D  E  -  F  G  -  -  -  UN   UN
       2nd MCP 501-1221 !      -  -  A  B  C  D  -  E  F  G  H  I  UN   UN
       3rd MCP 501-1221 !      -  -  -  A  B  C  -  D  E  F  G  H  UN   UN
       4th MCP 501-1221 !      -  -  -  -  A  B  -  C  D  E  F  G  UN   UN
       1st ALM-2 501-1203 !    -  A  B  C  D  E  -  F  G  H  I  J  UN   UN
       2nd ALM-2 501-1203 !    -  -  A  B  C  D  -  E  F  G  H  I  UN   UN
       3rd ALM-2 501-1203 !    -  -  -  A  B  C  -  D  E  F  G  H  UN   UN
       4th ALM-2 501-1203 !    -  -  -  -  A  B  -  C  D  E  F  G  UN   UN
       1st SunLink Chnl Adpt @ -  A  A  C  C  -  -  E  E  G  G  -  UN   UN
                               -  -  B  B  D  D  -  -  F  F  H  H
       2nd SunLink Chnl Adpt @ -  -  -  A  A  -  -  C  C  E  E  -  UN   UN
                               -  -  -  -  B  B  -  -  D  D  F  F
       1st MAPKIT 501-1202 @@  -  A  A  C  C  -  -  E  E  G  G  -  UN   UN
                               -  -  B  B  D  D  -  -  F  F  H  H
       2nd MAPKIT 501-1202 @@  -  -  -  A  A  -  -  C  C  E  E  -  UN   UN
                               -  -  -  -  B  B  -  -  D  D  F  F
       Sun-2 clr 501-1014 & %  -  A  B  C  D  E  -  F  G  H  I  J  JU   UN
       cg3 color 501-1116 & %  -  A  B  C  D  E  -  F  G  H  I  J  JU   UN
       cg5 color 501-1267 & $  -  A  B  C  D  E  -  F  G  H  I  J  JU   UN w/o GP or GP+
        "    "    "   "   && $ -  A  B  C  D  E  -  F  G  -  -  -  JU   UN with GP or GP+
        "    "    "   "   %%   -  -  -  -  -  -  -  -  -  -  A  B  JU   UN with GP2
       2nd Ethernet 501-1153 # -  A  B  C  D  E  -  F  G  H  I  J  UN   UN
       1st IPC 501-1125        -  A  B  C  D  E  -  F  G  H  I  J  JU   UN
       2nd IPC 501-1125        -  -  A  B  C  D  -  E  F  G  H  I  JU   UN
       3rd IPC 501-1125        -  -  -  A  B  C  -  D  E  F  G  H  JU   UN
       4th IPC 501-1125        -  -  -  -  A  B  -  C  D  E  F  G  JU   UN
       1st 1/2" tape !! #      -  -  -  -  -  -  -  A  B  C  D  E  UN   UN
       2nd 1/2" tape !! #      -  -  -  -  -  -  -  -  A  B  C  D  UN   UN
       1st SMD ~~ #            -  -  -  -  -  -  -  A  B  C  D  E  UN   UN
       2nd SMD ~~ #            -  -  -  -  -  -  -  -  A  B  C  D  UN   UN

       *  501-1163     2M CPU
          501-1164     4M CPU
          501-1208     4M CPU

       ** 501-1055     Graphics Processor
          501-1139     Graphics Processor Plus
          501-1268     Graphics Processor 2

       &  The 501-1014 Sun-2 color framebuffer, 501-1116 cg3 color
          framebuffer, and 501-1267 cg5 color framebuffer are mutually
          exclusive.

       && When installed with either the 501-1055 graphics processor or
          the 501-1139 graphics processor plus, the cg5 may be
          installed in slots 2-9 only.

       $  The gp5's P2 bus must be disabled.

       $$ 501-1131     2M memory
          501-1132     4M memory

       !  See "Important Note about ALM and MCP products", below.

       !! 501-1156     CPC 1/2" tape controller (1600 BPI)
          501-1155     Xylogics 472 1/2" tape controller (6250 BPI)

       ~  The 501-1383 TAAC-1 consumes three spaces (slots 10, 11, and
          12). Besides jumpering P1003 and P1004 as shown in the table
          above, P1103, P1104, and P1203 must be jumpered (P1204 does
          not exist).

       ~~ 501-1154     Xylogics 450 SMD controller in Multibus-VME converter
          501-1166     Xylogics 451 SMD controller in Multibus-VME converter

       %  The 501-1268 GP2 will not function if any of the 501-1058
          graphics buffer, the 501-1116 Sun-3 color board (cg3), or the
          501-1014 Sun-2 color board are installed.

       %% The GP2 communicates with the 501-1267 cg5 over a private P2
          bus which must be enabled on the cg5 by a hardware switch
          setting. The cg5 must also be installed in slot 11 or 12.

       #  If you wish to install a Multibus-VME converter-based board
          in slots 2-6, you just use converters 501-1054-04 rev A or
          later to avoid contention on the P2 memory bus.

          If you wish to install a Multibus-VME converted-based board
          in slots 10-12 and any combination of GP and GP boards are
          installed, you must use converters 501-1054-04 rev A or later
          to avoid contention on the GP/GB private bus.

       @  The 370-1128 SunLink Channel Adapter uses two slots. The Px03
          and Px04 jumpers must be unjumpered for both slots.
          Additionally, do not place a 1/2" tape controller or an SMD
          disk controller in a slot between the channel adapter and the
          CPU, or the channel adapter's throughput may be adversely
          affected.

       @@ The 501-1202 MAPKIT covers two slots but only connects
          electrically to the slot nearest slot 1. Hence, treat the
          other slot as empty (i.e. jump both Px03 and Px04).
          Additionally, do not place a 1/2" tape controller or an SMD
          disk controller in a slot between the MAPKIT and the CPU, or
          the MAPKIT's throughput may be adversely affected.

   3/180 using external-connection-only SCSI controller and leaving
         slots 7-9 for non-Sun boards that use P2 bus signals

       board           slot:   1  2# 3# 4# 5# 6# 7  8  9 10#11#12#Px03 Px04
       CPU *                   A  -  -  -  -  -  -  -  -  -  -  -  UN   UN
       1st memory $$           -  A  -  -  -  -  -  -  -  -  -  -  JU   JU
       2nd memory $$           -  -  A  -  -  -  -  -  -  -  -  -  JU   JU
       3rd memory $$           -  -  -  A  -  -  -  -  -  -  -  -  JU   JU
       FPA 501-1105            -  -  -  -  -  A  -  -  -  -  -  -  JU   JU
       GP/GP+/GP2 ** % %%      -  -  -  -  -  -  -  -  -  A  -  -  UN   UN
       GB 501-1058 # %         -  -  -  -  -  -  -  -  -  -  A  -  JU   JU
       TAAC-1 501-1383 ~       -  -  -  -  -  -  -  -  -  A  -  -  JU   JU
       1st ALM-1 501-1165 # !  -  -  -  -  -  -  -  -  -  -  -  A  UN   N/A
       2nd ALM-1 501-1165 # !  -  -  -  -  -  -  -  -  -  -  A  -  UN   UN
       3rd ALM-1 501-1165 # !  -  -  -  -  -  -  -  -  -  A  -  -  UN   UN
       1st SCP 501-1158 #      -  A  B  C  D  -  -  -  -  -  -  -  UN   UN
       2nd SCP 501-1158 #      -  -  A  B  C  D  -  -  -  E  F  G  UN   UN
       1st MCP 501-1221 !      -  A  B  C  D  E  -  -  -  F  G  H  UN   UN
       2nd MCP 501-1221 !      -  -  A  B  C  D  -  -  -  E  F  G  UN   UN
       3rd MCP 501-1221 !      -  -  -  A  B  C  -  -  -  D  E  F  UN   UN
       4th MCP 501-1221 !      -  -  -  -  A  B  -  -  -  C  D  E  UN   UN
       1st ALM-2 501-1203 !    -  A  B  C  D  E  -  -  -  F  G  H  UN   UN
       2nd ALM-2 501-1203 !    -  -  A  B  C  D  -  -  -  E  F  G  UN   UN
       3rd ALM-2 501-1203 !    -  -  -  A  B  C  -  -  -  D  E  F  UN   UN
       4th ALM-2 501-1203 !    -  -  -  -  A  B  -  -  -  -  C  D  UN   UN
       1st SunLink Chnl Adpt @ -  A  A  C  C  -  -  -  -  E  E  -  UN   UN
                               -  -  B  B  D  D  -  -  -  -  F  F
       2nd SunLink Chnl Adpt @ -  -  -  A  A  -  -  -  -  C  C  -  UN   UN
                               -  -  -  -  B  B  -  -  -  -  D  D
       1st MAPKIT 501-1202 @@  -  A  A  C  C     -  -  -  E  E  -  UN   UN
                               -  -  B  B  D  D  -  -  -  -  F  F
       2nd MAPKIT 501-1202 @@  -  -  -  A  A     -  -  -  C  C  -  UN   UN
                               -  -  -  -  B  B  -  -  -  -  D  D
       SCSI 501-1138/1217      -  A  B  C  D  E  -  -  -  F  G  H  UN   UN
       Sun-2 clr 501-1014 & %  -  A  B  C  D  E  -  -  -  F  G  H  JU   UN
       cg3 color 501-1116 & %  -  A  B  C  D  E  -  -  -  F  G  H  JU   UN
       cg5 color 501-1267 & $  -  A  B  C  D  E  -  -  -  F  G  H  JU   UN w/o GP or GP+
        "    "    "   "   && $ -  A  B  C  D  E  -  -  -  -  -  -  JU   UN with GP or GP+
        "    "    "   "   %%   -  -  -  -  -  -  -  -  -  -  A  B  JU   UN with GP2
       2nd Ethernet 501-1153 # -  A  B  C  D  E  -  -  -  F  G  H  UN   UN
       1st IPC 501-1125        -  A  B  C  D  E  -  -  -  F  G  H  JU   UN
       2nd IPC 501-1125        -  -  A  B  C  D  -  -  -  E  F  G  JU   UN
       3rd IPC 501-1125        -  -  -  A  B  C  -  -  -  D  E  F  JU   UN
       4th IPC 501-1125        -  -  -  -  A  B  -  -  -  C  D  E  JU   UN
       1st 1/2" tape !! #      -  A  B  C  D  E  -  -  -  F  G  H  UN   UN
       2nd 1/2" tape !! #      -  -  A  B  C  D  -  -  -  E  F  G  UN   UN
       1st SMD ~~ #            -  A  B  C  D  E  -  -  -  F  G  H  UN   UN
       2nd SMD ~~ #            -  -  A  B  C  D  -  -  -  E  F  G  UN   UN

       *  501-1163     2M CPU
          501-1164     4M CPU
          501-1208     4M CPU

       ** 501-1055     Graphics Processor
          501-1139     Graphics Processor Plus
          501-1268     Graphics Processor 2

       &  The 501-1014 Sun-2 color framebuffer, 501-1116 cg3 color
          framebuffer, and 501-1267 cg5 color framebuffer are mutually
          exclusive.

       && When installed with either the 501-1055 graphics processor or
          the 501-1139 graphics processor plus, the cg5 may be
          installed in slots 2-9 only.

       $  The gp5's P2 bus must be disabled.

       $$ 501-1131     2M memory
          501-1132     4M memory

       !  See "Important Note about ALM and MCP products", below.

       !! 501-1156     CPC 1/2" tape controller (1600 BPI)
          501-1155     Xylogics 472 1/2" tape controller (6250 BPI)

       ~  The 501-1383 TAAC-1 consumes three spaces (slots 10, 11, and
          12). Besides jumpering P1003 and P1004 as shown in the table
          above, P1103, P1104, and P1203 must be jumpered (P1204 does
          not exist).

       ~~ 501-1154     Xylogics 450 SMD controller in Multibus-VME converter
          501-1166     Xylogics 451 SMD controller in Multibus-VME converter

       %  The 501-1268 GP2 will not function if any of the 501-1058
          graphics buffer, the 501-1116 Sun-3 color board (cg3), or the
          501-1014 Sun-2 color board are installed.

       %% The GP2 communicates with the 501-1267 cg5 over a private P2
          bus which must be enabled on the cg5 by a hardware switch
          setting. The cg5 must also be installed in slot 11 or 12.

       #  If you wish to install a Multibus-VME converter-based board
          in slots 2-6, you just use converters 501-1054-04 rev A or
          later to avoid contention on the P2 memory bus.

          If you wish to install a Multibus-VME converted-based board
          in slots 10-12 and any combination of GP and GP boards are
          installed, you must use converters 501-1054-04 rev A or later
          to avoid contention on the GP/GB private bus.

       @  The 370-1128 SunLink Channel Adapter uses two slots. The Px03
          and Px04 jumpers must be unjumpered for both slots.
          Additionally, do not place a 1/2" tape controller or an SMD
          disk controller in a slot between the channel adapter and the
          CPU, or the channel adapter's throughput may be adversely
          affected.

       @@ The 501-1202 MAPKIT covers two slots but only connects
          electrically to the slot nearest slot 1. Hence, treat the
          other slot as empty (i.e. jump both Px03 and Px04).
          Additionally, do not place a 1/2" tape controller or an SMD
          disk controller in a slot between the MAPKIT and the CPU, or
          the MAPKIT's throughput may be adversely affected.

   3/260 using internal-connection-only or internal/external SCSI controller
         (for systems without a SCSI controller, use the "3/280 using
         external-connection-only SCSI controller" table below)

       board           slot:   1  2#~3# 4# 5# 6  7  8  9 10#11#12#Px03 Px04
       CPU 501-1100/1206       A  -  -  -  -  -  -  -  -  -  -  -  UN   UN
       1st memory 501-1102 *   -  -  -  -  -  A  -  -  -  -  -  -  JU   JU
       2nd memory 501-1102 *   -  -  -  A  -  -  -  -  -  -  -  -  JU   JU
       3rd memory 501-1102 *   -  -  A  -  -  -  -  -  -  -  -  -  JU   JU
       4th memory 501-1102 *   -  A  -  -  -  -  -  -  -  -  -  -  JU   JU
       FPA 501-1105            -  -  -  -  A  -  -  -  -  -  -  -  JU   JU
       GP/GP+/GP2 ** % %%      -  -  -  -  -  -  -  -  -  A  -  -  UN   UN
       GB 501-1058 # %         -  -  -  -  -  -  -  -  -  -  A  -  JU   JU
       TAAC-1 501-1383 ~~      -  -  -  -  -  -  -  -  -  A  -  -  JU   JU
       ALM-1 501-1157 # !! !   -  -  -  -  -  -  -  -  -  -  -  A  UN   N/A
       SCSI 501-1149/1167/1170 -  -  -  -  -  -  A  -  -  -  -  -  UN   UN
       1st SCP 501-1158 #      -  D  A  B  C  -  E  F  -  -  -  -  UN   UN
       2nd SCP 501-1158 #      -  C  -  A  B  -  D  E  F  -  -  -  UN   UN
       1st MCP 501-1221 !      -  D  A  B  C  -  E  F  G  H  I  J  UN   UN
       2nd MCP 501-1221 !      -  C  -  A  B  -  D  E  F  G  H  I  UN   UN
       3rd MCP 501-1221 !      -  B  -  -  A  -  C  D  E  F  G  H  UN   UN
       4th MCP 501-1221 !      -  A  -  -  -  -  B  C  D  E  F  G  UN   UN
       1st ALM-2 501-1203 !    -  D  A  B  C  -  E  F  G  H  I  J  UN   UN
       2nd ALM-2 501-1203 !    -  C  -  A  B  -  D  E  F  G  H  I  UN   UN
       3rd ALM-2 501-1203 !    -  B  -  -  A  -  C  D  E  F  G  H  UN   UN
       4th ALM-2 501-1203 !    -  A  -  -  -  -  B  C  D  E  F  G  UN   UN
       1st SunLink Chnl Adpt @ -  A  A  C  C  -  D  D  F  F  H  H  UN   UN
                               -  -  B  B  -  -  -  E  E  G  G  -
       2nd SunLink Chnl Adpt @ -  -  -  A  A  -  B  B  D  D  F  F  UN   UN
                               -  -  -  -  -  -  -  C  C  E  E  -
       1st MAPKIT 501-1202 $$  -  A  A  C  C  -  D  D  F  F  H  H  UN   UN
                               -  -  B  B  -  -  -  E  E  G  G  -
       2nd MAPKIT 501-1202 $$  -  -  -  A  A  -  B  B  D  D  F  F  UN   UN
                               -  -  -  -  -  -  -  C  C  E  E  -
       2nd Ethernet 501-1153 # -  D  A  B  C  -  E  F  G  H  I  J  UN   UN
       1st IPC 501-1125        -  D  A  B  C  -  E  F  G  H  I  J  JU   UN
       2nd IPC 501-1125        -  C  -  A  B  -  D  E  F  G  H  I  JU   UN
       3rd IPC 501-1125        -  B  -  -  A  -  C  D  E  F  G  H  JU   UN
       4th IPC 501-1125        -  A  -  -  -  -  B  C  D  E  F  G  JU   UN
       1st 1/2" tape ## #      -  -  -  -  -  -  A  B  C  D  E  F  UN   UN
       2nd 1/2" tape ## #      -  -  -  -  -  -  -  A  B  C  D  E  UN   UN
       1st SMD @@ #            -  -  -  -  -  -  A  B  C  D  E  F  UN   UN
       2nd SMD @@ #            -  -  -  -  -  -  -  A  B  C  D  E  UN   UN
       Sun-2 clr 501-1014 & %  -  J  A  B  C  -  D  E  F  G  H  I  JU   UN
       cg3 color 501-1116 & %  -  J  A  B  C  -  D  E  F  G  H  I  JU   UN
       cg5 color 501-1267 & $  -  J  A  B  C  -  D  E  F  G  H  I  JU   UN w/o GP or GP+
        "    "    "   "   && $ -  H  A  B  C  -  D  E  F  -  -  -  JU   UN with GP or GP+
        "    "    "   "   %%   -  -  -  -  -  -  -  -  -  -  A  B  JU   UN with GP2

       #  If you wish to install a Multibus-VME converter-based board
          in slots 2-5, you just use converters 501-1054-04 rev A or
          later to avoid contention on the P2 memory bus.

          If you wish to install a Multibus-VME converted-based board
          in slots 10-12 and any combination of GP and GP boards are
          installed, you must use converters 501-1054-04 rev A or later
          to avoid contention on the GP/GB private bus.

       ## 501-1156     CPC 1/2" tape controller (1600 BPI)
          501-1155     Xylogics 472 1/2" tape controller (6250 BPI)

       ~  Avoid using slot 2 until absolutely necessary, to aid cooling
          of the CPU board. That is, if there is another slot available
          in which a board can be installed (even if it is not the most
          preferred slot) without impacting the functionality of
          another board, it should be installed in that slot instead of
          slot 2.

       ~~ The 501-1383 TAAC-1 consumes three spaces (slots 10, 11, and
          12). Besides jumpering P1003 and P1004 as shown in the table
          above, P1103, P1104, and P1203 must be jumpered (P1204 does
          not exist).

       *  There must always be a memory board in slot 6 and it must
          have a 220/270-ohm terminating resistor network installed
          (see detailed description of board). Additional memory
          boards in slots 2-4 must NOT have the terminator installed.

       ** 501-1055     Graphics Processor
          501-1139     Graphics Processor Plus
          501-1268     Graphics Processor 2

       %  The 501-1268 GP2 will not function if any of the 501-1058
          graphics buffer, the 501-1116 Sun-3 color board (cg3), or the
          501-1014 Sun-2 color board are installed.

       %% The GP2 communicates with the 501-1267 cg5 over a private P2
          bus which must be enabled on the cg5 by a hardware switch
          setting. The cg5 must also be installed in slot 11 or 12.

       !  See "Important Note about ALM and MCP products", below.

       !! The 501-1157 ALM covers slots 11 and 12 but only connects
          electrically to slot 12. Hence, treat slot 11 as empty (i.e.
          jump both P1103 and P1104).

       &  The 501-1014 Sun-2 color framebuffer, 501-1116 cg3 color
          framebuffer, and 501-1267 cg5 color framebuffer are mutually
          exclusive.

       && When installed with either the 501-1055 graphics processor or
          the 501-1139 graphics processor plus, the cg5 may be
          installed in slots 2-9 only.

       $  The gp5's P2 bus must be disabled.

       $$ The 501-1202 MAPKIT covers two slots but only connects
          electrically to the slot nearest slot 1. Hence, treat the
          other slot as empty (i.e. jump both Px03 and Px04).
          Additionally, do not place a 1/2" tape controller or an SMD
          disk controller in a slot between the MAPKIT and the CPU, or
          the MAPKIT's throughput may be adversely affected.

       @  The 370-1128 SunLink Channel Adapter uses two slots. The Px03
          and Px04 jumpers must be unjumpered for both slots.
          Additionally, do not place a 1/2" tape controller or an SMD
          disk controller in a slot between the channel adapter and the
          CPU, or the channel adapter's throughput may be adversely
          affected.

       @@ 501-1154     Xylogics 450 SMD controller in Multibus-VME converter
          501-1166     Xylogics 451 SMD controller in Multibus-VME converter

   3/280 using external-connection-only SCSI controller

       board           slot:   1  2# 3# 4# 5# 6  7  8  9 10#11#12#Px03 Px04
       CPU 501-1100/1206       A  -  -  -  -  -  -  -  -  -  -  -  UN   UN
       1st memory 501-1102 *   -  -  -  -  -  A  -  -  -  -  -  -  JU   JU
       2nd memory 501-1102 *   -  A  -  -  -  -  -  -  -  -  -  -  JU   JU
       3rd memory 501-1102 *   -  -  A  -  -  -  -  -  -  -  -  -  JU   JU
       4th memory 501-1102 *   -  -  -  A  -  -  -  -  -  -  -  -  JU   JU
       FPA 501-1105            -  -  -  -  A  -  -  -  -  -  -  -  JU   JU
       GP/GP+/GP2 ** % %%      -  -  -  -  -  -  -  -  -  A  -  -  UN   UN
       GB 501-1058 # %         -  -  -  -  -  -  -  -  -  -  A  -  JU   JU
       TAAC-1 501-1383 ~~      -  -  -  -  -  -  -  -  -  A  -  -  JU   JU
       1st ALM-1 501-1165 # !  -  -  -  -  -  -  -  -  -  -  -  A  UN   N/A
       2nd ALM-1 501-1165 # !  -  -  -  -  -  -  -  -  -  -  A  -  UN   UN
       3rd ALM-1 501-1165 # !  -  -  -  -  -  -  -  -  -  A  -  -  UN   UN
       1st SCP 501-1158 #      -  A  B  C  D  -  E  -  -  -  -  -  UN   UN
       2nd SCP 501-1158 #      -  -  A  B  C  -  D  E  -  -  -  -  UN   UN
       1st MCP 501-1221 !      -  A  B  C  D  -  E  F  G  -  -  -  UN   UN
       2nd MCP 501-1221 !      -  -  A  B  C  -  D  E  F  G  H  I  UN   UN
       3rd MCP 501-1221 !      -  -  -  A  B  -  C  D  E  F  G  H  UN   UN
       4th MCP 501-1221 !      -  -  -  -  A  -  B  C  D  E  F  G  UN   UN
       1st ALM-2 501-1203 !    -  A  B  C  D  -  E  F  G  H  I  J  UN   UN
       2nd ALM-2 501-1203 !    -  -  A  B  C  -  D  E  F  G  H  I  UN   UN
       3rd ALM-2 501-1203 !    -  -  -  A  B  -  C  D  E  F  G  H  UN   UN
       4th ALM-2 501-1203 !    -  -  -  -  A  -  B  C  D  E  F  G  UN   UN
       1st SunLink Chnl Adpt @ -  A  A  C  C  -  D  D  F  F  H  H  UN   UN
                               -  -  B  B  -  -  -  E  E  G  G  -
       2nd SunLink Chnl Adpt @ -  -  -  A  A  -  B  B  D  D  F  F  UN   UN
                               -  -  -  -  -  -  -  C  C  E  E  -
       1st MAPKIT 501-1202 $$  -  A  A  C  C  -  D  D  F  F  G  G  UN   UN
                               -  -  B  B  -  -  -  E  E  -  -  -
       2nd MAPKIT 501-1202 $$  -  -  A  A  -  -  B  B  D  D  F  F  UN   UN
                               -  -  -  -  -  -  -  C  C  E  E  -
       SCSI 501-1138/1217      -  A  B  C  D  -  E  F  G  H  I  J  UN   UN
       Sun-2 clr 501-1014 & %  -  A  B  C  D  -  E  F  G  H  I  J  JU   UN
       cg3 color 501-1116 & %  -  A  B  C  D  -  E  F  G  H  I  J  JU   UN
       cg5 color 501-1267 & $  -  A  B  C  D  -  E  F  G  H  I  J  JU   UN w/o GP or GP+
        "    "    "   "   && $ -  A  B  C  D  -  E  F  G  -  -  -  JU   UN with GP or GP+
        "    "    "   "   %%   -  -  -  -  -  -  -  -  -  -  A  B  JU   UN with GP2
       2nd Ethernet 501-1153 # -  A  B  C  D  -  E  F  G  H  I  J  UN   UN
       1st IPC 501-1125        -  A  B  C  D  -  E  F  G  H  I  J  JU   UN
       2nd IPC 501-1125        -  -  A  B  C  -  D  E  F  G  H  I  JU   UN
       3rd IPC 501-1125        -  -  -  A  B  -  C  D  E  F  G  H  JU   UN
       4th IPC 501-1125        -  -  -  -  A  -  B  C  D  E  F  G  JU   UN
       1st 1/2" tape ## #      -  A  B  C  D  -  E  F  G  H  I  J  UN   UN
       2nd 1/2" tape ## #      -  -  A  B  C  -  D  E  F  G  H  I  UN   UN
       1st SMD @@ #            -  A  B  C  D  -  E  F  G  H  I  J  UN   UN
       2nd SMD @@ #            -  -  A  B  C  -  D  E  F  G  H  I  UN   UN

       #  If you wish to install a Multibus-VME converter-based board
          in slots 2-5, you just use converters 501-1054-04 rev A or
          later to avoid contention on the P2 memory bus.

          If you wish to install a Multibus-VME converted-based board
          in slots 10-12 and any combination of GP and GP boards are
          installed, you must use converters 501-1054-04 rev A or later
          to avoid contention on the GP/GB private bus.

       ## 501-1156     CPC 1/2" tape controller (1600 BPI)
          501-1155     Xylogics 472 1/2" tape controller (6250 BPI)

       *  There must always be a memory board in slot 6 and it must
          have a 220/270-ohm terminating resistor network installed
          (see detailed description of board). Additional memory
          boards in slots 2-4 must NOT have the terminator installed.

       ** 501-1055     Graphics Processor
          501-1139     Graphics Processor Plus
          501-1268     Graphics Processor 2

       %  The 501-1268 GP2 will not function if any of the 501-1058
          graphics buffer, the 501-1116 Sun-3 color board (cg3), or the
          501-1014 Sun-2 color board are installed.

       %% The GP2 communicates with the 501-1267 cg5 over a private P2
          bus which must be enabled on the cg5 by a hardware switch
          setting. The cg5 must also be installed in slot 11 or 12.

       &  The 501-1014 Sun-2 color framebuffer, 501-1116 cg3 color
          framebuffer, and 501-1267 cg5 color framebuffer are mutually
          exclusive.

       && When installed with either the 501-1055 graphics processor or
          the 501-1139 graphics processor plus, the cg5 may be
          installed in slots 2-9 only.

       $  The gp5's P2 bus must be disabled.

       $$ The 501-1202 MAPKIT covers two slots but only connects
          electrically to the slot nearest slot 1. Hence, treat the
          other slot as empty (i.e. jump both Px03 and Px04).
          Additionally, do not place a 1/2" tape controller or an SMD
          disk controller in a slot between the MAPKIT and the CPU, or
          the MAPKIT's throughput may be adversely affected.

       @  The 370-1128 SunLink Channel Adapter uses two slots. The Px03
          and Px04 jumpers must be unjumpered for both slots.
          Additionally, do not place a 1/2" tape controller or an SMD
          disk controller in a slot between the channel adapter and the
          CPU, or the channel adapter's throughput may be adversely
          affected.

       @@ 501-1154     Xylogics 450 SMD controller in Multibus-VME converter
          501-1166     Xylogics 451 SMD controller in Multibus-VME converter

       !  See "Important Note about ALM and MCP products", below.

       ~~ The 501-1383 TAAC-1 consumes three spaces (slots 10, 11, and
          12). Besides jumpering P1003 and P1004 as shown in the table
          above, P1103, P1104, and P1203 must be jumpered (P1204 does
          not exist).

   3/280 using internal-connection-only or internal/external SCSI controller

       board           slot:   1  2# 3# 4# 5# 6  7  8  9 10#11#12#Px03 Px04
       CPU 501-1100/1206       A  -  -  -  -  -  -  -  -  -  -  -  UN   UN
       1st memory 501-1102 *   -  -  -  -  -  A  -  -  -  -  -  -  JU   JU
       2nd memory 501-1102 *   -  A  -  -  -  -  -  -  -  -  -  -  JU   JU
       3rd memory 501-1102 *   -  -  A  -  -  -  -  -  -  -  -  -  JU   JU
       4th memory 501-1102 *   -  -  -  A  -  -  -  -  -  -  -  -  JU   JU
       FPA 501-1105            -  -  -  -  A  -  -  -  -  -  -  -  JU   JU
       GP/GP+/GP2 ** % %%      -  -  -  -  -  -  -  -  -  A  -  -  UN   UN
       GB 501-1058 # %         -  -  -  -  -  -  -  -  -  -  A  -  JU   JU
       TAAC-1 501-1383 ~~      -  -  -  -  -  -  -  -  -  A  -  -  JU   JU
       1st ALM-1 501-1165 # !  -  -  -  -  -  -  -  -  -  -  -  A  UN   N/A
       2nd ALM-1 501-1165 # !  -  -  -  -  -  -  -  -  -  -  A  -  UN   UN
       3rd ALM-1 501-1165 # !  -  -  -  -  -  -  -  -  -  A  -  -  UN   UN
       SCSI 501-1149/1167/1170 -  -  -  -  -  -  A  -  -  -  -  -  UN   UN
       1st SCP 501-1158 #      -  A  B  C  D  -  -  E  -  -  -  -  UN   UN
       2nd SCP 501-1158 #      -  -  A  B  C  -  -  D  E  -  -  -  UN   UN
       1st MCP 501-1221 !      -  A  B  C  D  -  -  E  F  G  H  I  UN   UN
       2nd MCP 501-1221 !      -  -  A  B  C  -  -  D  E  F  G  H  UN   UN
       3rd MCP 501-1221 !      -  -  -  A  B  -  -  C  D  E  F  G  UN   UN
       4th MCP 501-1221 !      -  -  -  -  A  -  -  B  C  D  E  F  UN   UN
       1st ALM-2 501-1203 !    -  A  B  C  D  -  -  E  F  G  H  I  UN   UN
       2nd ALM-2 501-1203 !    -  -  A  B  C  -  -  D  E  F  G  H  UN   UN
       3rd ALM-2 501-1203 !    -  -  -  A  B  -  -  C  D  E  F  G  UN   UN
       4th ALM-2 501-1203 !    -  -  -  -  A  -  -  B  C  D  E  F  UN   UN
       1st SunLink Chnl Adpt @ -  A  A  C  C  -  -  D  D  F  F  -  UN   UN
                               -  -  B  B  -  -  -  -  E  E  G  G
       2nd SunLink Chnl Adpt @ -  -  -  A  A  -  -  B  B  D  D  -  UN   UN
                               -  -  -  -  -  -  -  -  C  C  E  E
       1st MAPKIT 501-1202 $$  -  A  A  C  C  -  -  D  D  F  F  -  UN   UN
                               -  -  B  B  -  -  -  -  -  -  E  E
       2nd MAPKIT 501-1202 $$  -  -  A  A  -  -  -  B  B  D  D  -  UN   UN
                               -  -  -  -  -  -  -  -  C  C  E  E
       Sun-2 clr 501-1014 & %  -  A  B  C  D  -  -  E  F  G  H  I  JU   UN
       cg3 color 501-1116 & %  -  A  B  C  D  -  -  E  F  G  H  I  JU   UN
       cg5 color 501-1267 & $  -  A  B  C  D  -  -  E  F  G  H  I  JU   UN w/o GP or GP+
        "    "    "   "   && $ -  A  B  C  D  -  -  E  F  -  -  -  JU   UN with GP or GP+
        "    "    "   "   %%   -  -  -  -  -  -  -  -  -  -  A  B  JU   UN with GP2
       2nd Ethernet 501-1153 # -  A  B  C  D  -  -  E  F  G  H  I  UN   UN
       1st IPC 501-1125        -  A  B  C  D  -  -  E  F  G  H  I  JU   UN
       2nd IPC 501-1125        -  -  A  B  C  -  -  D  E  F  G  H  JU   UN
       3rd IPC 501-1125        -  -  -  A  B  -  -  C  D  E  F  G  JU   UN
       4th IPC 501-1125        -  -  -  -  A  -  -  B  C  D  E  F  JU   UN
       1st 1/2" tape ## #      -  -  -  -  -  -  -  A  B  C  D  E  UN   UN
       2nd 1/2" tape ## #      -  -  -  -  -  -  -  -  A  B  C  D  UN   UN
       1st SMD @@ #            -  -  -  -  -  -  -  A  B  C  D  E  UN   UN
       2nd SMD @@ #            -  -  -  -  -  -  -  -  A  B  C  D  UN   UN

       #  If you wish to install a Multibus-VME converter-based board
          in slots 2-5, you just use converters 501-1054-04 rev A or
          later to avoid contention on the P2 memory bus.

          If you wish to install a Multibus-VME converted-based board
          in slots 10-12 and any combination of GP and GP boards are
          installed, you must use converters 501-1054-04 rev A or later
          to avoid contention on the GP/GB private bus.

       ## 501-1156     CPC 1/2" tape controller (1600 BPI)
          501-1155     Xylogics 472 1/2" tape controller (6250 BPI)

       *  There must always be a memory board in slot 6 and it must
          have a 220/270-ohm terminating resistor network installed
          (see detailed description of board). Additional memory
          boards in slots 2-4 must NOT have the terminator installed.

       ** 501-1055     Graphics Processor
          501-1139     Graphics Processor Plus
          501-1268     Graphics Processor 2

       %  The 501-1268 GP2 will not function if any of the 501-1058
          graphics buffer, the 501-1116 Sun-3 color board (cg3), or the
          501-1014 Sun-2 color board are installed.

       %% The GP2 communicates with the 501-1267 cg5 over a private P2
          bus which must be enabled on the cg5 by a hardware switch
          setting. The cg5 must also be installed in slot 11 or 12.

       &  The 501-1014 Sun-2 color framebuffer, 501-1116 cg3 color
          framebuffer, and 501-1267 cg5 color framebuffer are mutually
          exclusive.

       && When installed with either the 501-1055 graphics processor or
          the 501-1139 graphics processor plus, the cg5 may be
          installed in slots 2-9 only.

       $  The gp5's P2 bus must be disabled.

       $$ The 501-1202 MAPKIT covers two slots but only connects
          electrically to the slot nearest slot 1. Hence, treat the
          other slot as empty (i.e. jump both Px03 and Px04).
          Additionally, do not place a 1/2" tape controller or an SMD
          disk controller in a slot between the MAPKIT and the CPU, or
          the MAPKIT's throughput may be adversely affected.

       @  The 370-1128 SunLink Channel Adapter uses two slots. The Px03
          and Px04 jumpers must be unjumpered for both slots.
          Additionally, do not place a 1/2" tape controller or an SMD
          disk controller in a slot between the channel adapter and the
          CPU, or the channel adapter's throughput may be adversely
          affected.

       @@ 501-1154     Xylogics 450 SMD controller in Multibus-VME converter
          501-1166     Xylogics 451 SMD controller in Multibus-VME converter

       !  See "Important Note about ALM and MCP products", below.

       ~~ The 501-1383 TAAC-1 consumes three spaces (slots 10, 11, and
          12). Besides jumpering P1003 and P1004 as shown in the table
          above, P1103, P1104, and P1203 must be jumpered (P1204 does
          not exist).

   3/280 using external-connection-only SCSI controller and leaving
         slots 7-9 for non-Sun boards that use P2 bus signals

       board           slot:   1  2# 3# 4# 5# 6  7  8  9 10#11#12#Px03 Px04
       CPU 501-1100/1206       A  -  -  -  -  -  -  -  -  -  -  -  UN   UN
       1st memory 501-1102 *   -  -  -  -  -  A  -  -  -  -  -  -  JU   JU
       2nd memory 501-1102 *   -  A  -  -  -  -  -  -  -  -  -  -  JU   JU
       3rd memory 501-1102 *   -  -  A  -  -  -  -  -  -  -  -  -  JU   JU
       4th memory 501-1102 *   -  -  -  A  -  -  -  -  -  -  -  -  JU   JU
       FPA 501-1105            -  -  -  -  A  -  -  -  -  -  -  -  JU   JU
       GP/GP+/GP2 ** % %%      -  -  -  -  -  -  -  -  -  A  -  -  UN   UN
       GB 501-1058 # %         -  -  -  -  -  -  -  -  -  -  A  -  JU   JU
       TAAC-1 501-1383 ~~      -  -  -  -  -  -  -  -  -  A  -  -  JU   JU
       1st ALM-1 501-1165 # !  -  -  -  -  -  -  -  -  -  -  -  A  UN   N/A
       2nd ALM-1 501-1165 # !  -  -  -  -  -  -  -  -  -  -  A  -  UN   UN
       3rd ALM-1 501-1165 # !  -  -  -  -  -  -  -  -  -  A  -  -  UN   UN
       1st SCP 501-1158 #      -  A  B  C  D  -  -  -  -  E  F  G  UN   UN
       2nd SCP 501-1158 #      -  -  A  B  C  -  -  -  -  D  E  F  UN   UN
       1st MCP 501-1221 !      -  A  B  C  D  -  -  -  -  E  F  G  UN   UN
       2nd MCP 501-1221 !      -  -  A  B  C  -  -  -  -  D  E  F  UN   UN
       3rd MCP 501-1221 !      -  -  -  A  B  -  -  -  -  C  D  E  UN   UN
       4th MCP 501-1221 !      -  -  -  -  A  -  -  -  -  B  C  D  UN   UN
       1st ALM-2 501-1203 !    -  A  B  C  D  -  -  -  -  E  F  G  UN   UN
       2nd ALM-2 501-1203 !    -  -  A  B  C  -  -  -  -  D  E  F  UN   UN
       3rd ALM-2 501-1203 !    -  -  -  A  B  -  -  -  -  C  D  E  UN   UN
       4th ALM-2 501-1203 !    -  -  -  -  A  -  -  -  -  B  C  D  UN   UN
       1st SunLink Chnl Adpt @ -  A  A  C  C  -  -  -  -  D  D  -  UN   UN
                               -  -  B  B  -  -  -  -  -  -  E  E
       2nd SunLink Chnl Adpt @ -  -  -  A  A  -  -  -  -  B  B  -  UN   UN
                               -  -  -  -  -  -  -  -  -  -  C  C
       1st MAPKIT 501-1202 $$  -  A  A  C  C  -  -  -  -  D  D  -  UN   UN
                               -  -  B  B  -  -  -  -  -  -  -  -
       2nd MAPKIT 501-1202 $$  -  -  A  A  -  -  -  -  -  B  B  -  UN   UN
                               -  -  -  -  -  -  -  -  -  -  C  C
       SCSI 501-1138/1217      -  A  B  C  D  -  -  -  -  E  F  G  UN   UN
       Sun-2 clr 501-1014 & %  -  A  B  C  D  -  -  -  -  E  F  G  JU   UN
       cg3 color 501-1116 & %  -  A  B  C  D  -  -  -  -  E  F  G  JU   UN
       cg5 color 501-1267 & $  -  A  B  C  D  -  -  -  -  E  F  G  JU   UN w/o GP or GP+
        "    "    "   "   && $ -  A  B  C  D  -  -  -  -  -  -  -  JU   UN with GP or GP+
        "    "    "   "   %%   -  -  -  -  -  -  -  -  -  -  A  B  JU   UN with GP2
       2nd Ethernet 501-1153 # -  A  B  C  D  -  -  -  -  E  F  G  UN   UN
       1st IPC 501-1125        -  A  B  C  D  -  -  -  -  E  F  G  JU   UN
       2nd IPC 501-1125        -  -  A  B  C  -  -  -  -  D  E  F  JU   UN
       3rd IPC 501-1125        -  -  -  A  B  -  -  -  -  C  D  E  JU   UN
       4th IPC 501-1125        -  -  -  -  A  -  -  -  -  B  C  D  JU   UN
       1st 1/2" tape ## #      -  A  B  C  D  -  -  -  -  E  F  G  UN   UN
       2nd 1/2" tape ## #      -  -  A  B  C  -  -  -  -  D  E  F  UN   UN
       1st SMD @@ #            -  A  B  C  D  -  -  -  -  E  F  G  UN   UN
       2nd SMD @@ #            -  -  A  B  C  -  -  -  -  D  E  F  UN   UN

       #  If you wish to install a Multibus-VME converter-based board
          in slots 2-5, you just use converters 501-1054-04 rev A or
          later to avoid contention on the P2 memory bus.

          If you wish to install a Multibus-VME converted-based board
          in slots 10-12 and any combination of GP and GP boards are
          installed, you must use converters 501-1054-04 rev A or later
          to avoid contention on the GP/GB private bus.

       ## 501-1156     CPC 1/2" tape controller (1600 BPI)
          501-1155     Xylogics 472 1/2" tape controller (6250 BPI)

       *  There must always be a memory board in slot 6 and it must
          have a 220/270-ohm terminating resistor network installed
          (see detailed description of board). Additional memory
          boards in slots 2-4 must NOT have the terminator installed.

       ** 501-1055     Graphics Processor
          501-1139     Graphics Processor Plus
          501-1268     Graphics Processor 2

       %  The 501-1268 GP2 will not function if any of the 501-1058
          graphics buffer, the 501-1116 Sun-3 color board (cg3), or the
          501-1014 Sun-2 color board are installed.

       %% The GP2 communicates with the 501-1267 cg5 over a private P2
          bus which must be enabled on the cg5 by a hardware switch
          setting. The cg5 must also be installed in slot 11 or 12.

       &  The 501-1014 Sun-2 color framebuffer, 501-1116 cg3 color
          framebuffer, and 501-1267 cg5 color framebuffer are mutually
          exclusive.

       && When installed with either the 501-1055 graphics processor or
          the 501-1139 graphics processor plus, the cg5 may be
          installed in slots 2-9 only.

       $  The gp5's P2 bus must be disabled.

       $$ The 501-1202 MAPKIT covers two slots but only connects
          electrically to the slot nearest slot 1. Hence, treat the
          other slot as empty (i.e. jump both Px03 and Px04).
          Additionally, do not place a 1/2" tape controller or an SMD
          disk controller in a slot between the MAPKIT and the CPU, or
          the MAPKIT's throughput may be adversely affected.

       @  The 370-1128 SunLink Channel Adapter uses two slots. The Px03
          and Px04 jumpers must be unjumpered for both slots.
          Additionally, do not place a 1/2" tape controller or an SMD
          disk controller in a slot between the channel adapter and the
          CPU, or the channel adapter's throughput may be adversely
          affected.

       @@ 501-1154     Xylogics 450 SMD controller in Multibus-VME converter
          501-1166     Xylogics 451 SMD controller in Multibus-VME converter

       !  See "Important Note about ALM and MCP products", below.

       ~~ The 501-1383 TAAC-1 consumes three spaces (slots 10, 11, and
          12). Besides jumpering P1003 and P1004 as shown in the table
          above, P1103, P1104, and P1203 must be jumpered (P1204 does
          not exist).

   4/110

       board           slot:   1  2  3* Px03 Px04
       CPU 501-1199/1237 **    A  -  -   UN   UN
       MCP 501-1221 !          -  -  A   UN   UN
       ALM-2 501-1203 !        -  -  A   UN   UN
       color framebuffer @ @@  -  -  A   JU   UN
       2nd Ethernet 501-1153 * -  -  A   UN   UN
       IPC 501-1125            -  -  A   JU   UN

       *  If you wish to install a Multibus-VME converter-based board
          in slot 3, you just use converters 501-1054-04 rev A or later
          to avoid contention on the P2 memory bus.

       ** The CPU board covers slots 1 and 2 but only connects
          electrically to slot 1. Hence, treat slot 2 as empty (i.e.
          jump both P203 and P204).

       @  501-1116 "Sun-3" cg3 color
          501-1267 cg5 color

       @@ If a 501-1267 cg5 color framebuffer is installed, it must
          have its P2 bus disabled.

       !  See "Important Note about ALM and MCP products", below.

   4/260 using internal-connection-only or internal/external SCSI controller
         (for systems without a SCSI controller, use the "4/280 using
         external-connection-only SCSI controller" table below)

       board           slot:   1  2#~3# 4# 5# 6  7  8  9 10#11#12#Px03 Px04
       CPU 501-1274            A  -  -  -  -  -  -  -  -  -  -  -  UN   UN
       1st memory 501-1102 *   -  -  -  -  -  A  -  -  -  -  -  -  JU   JU
       2nd memory 501-1102 *   -  -  -  -  A  -  -  -  -  -  -  -  JU   JU
       3rd memory 501-1102 *   -  -  -  A  -  -  -  -  -  -  -  -  JU   JU
       4th memory 501-1102 *   -  -  A  -  -  -  -  -  -  -  -  -  JU   JU
       GP/GP+/GP2 ** % %%      -  -  -  -  -  -  -  -  -  A  -  -  UN   UN
       GB 501-1058 # %         -  -  -  -  -  -  -  -  -  -  A  -  JU   JU
       TAAC-1 501-1383 ~~      -  -  -  -  -  -  -  -  -  A  -  -  JU   JU
       ALM-1 501-1157 # !! !   -  -  -  -  -  -  -  -  -  -  -  A  UN   N/A
       SCSI 501-1149/1167/1170 -  -  -  -  -  -  A  -  -  -  -  -  UN   UN
       1st SCP 501-1158 #      -  D  A  B  C  -  E  F  -  -  -  -  UN   UN
       2nd SCP 501-1158 #      -  C  -  A  B  -  D  E  F  -  -  -  UN   UN
       1st MCP 501-1221 !      -  A  B  C  D  -  E  F  G  H  I  J  UN   UN
       2nd MCP 501-1221 !      -  -  A  B  C  -  D  E  F  G  H  I  UN   UN
       3rd MCP 501-1221 !      -  -  -  A  B  -  C  D  E  F  G  H  UN   UN
       4th MCP 501-1221 !      -  -  -  -  A  -  B  C  D  E  F  G  UN   UN
       1st ALM-2 501-1203 !    -  A  B  C  D  -  E  F  G  H  I  J  UN   UN
       2nd ALM-2 501-1203 !    -  -  A  B  C  -  D  E  F  G  H  I  UN   UN
       3rd ALM-2 501-1203 !    -  -  -  A  B  -  C  D  E  F  G  H  UN   UN
       4th ALM-2 501-1203 !    -  -  -  -  A  -  B  C  D  E  F  G  UN   UN
       1st SunLink Chnl Adpt @ -  A  A  C  C  -  D  D  F  F  H  H  UN   UN
                               -  -  B  B  -  -  -  E  E  G  G  -
       2nd SunLink Chnl Adpt @ -  -  -  A  A  -  B  B  D  D  F  F  UN   UN
                               -  -  -  -  -  -  -  C  C  E  E  -
       1st MAPKIT 501-1202 $$  -  A  A  C  C  -  D  D  F  F  H  H  UN   UN
                               -  -  B  B  -  -  -  E  E  G  G  -
       2nd MAPKIT 501-1202 $$  -  -  -  A  A  -  B  B  D  D  F  F  UN   UN
                               -  -  -  -  -  -  -  C  C  E  E  -
       2nd Ethernet 501-1153 # -  D  A  B  C  -  E  F  G  H  I  J  UN   UN
       1st IPC 501-1125        -  D  A  B  C  -  E  F  G  H  I  J  JU   UN
       2nd IPC 501-1125        -  C  -  A  B  -  D  E  F  G  H  I  JU   UN
       3rd IPC 501-1125        -  B  -  -  A  -  C  D  E  F  G  H  JU   UN
       4th IPC 501-1125        -  A  -  -  -  -  B  C  D  E  F  G  JU   UN
       1st 1/2" tape ## #      -  -  -  -  -  -  A  B  C  D  E  F  UN   UN
       2nd 1/2" tape ## #      -  -  -  -  -  -  -  A  B  C  D  E  UN   UN
       1st SMD @@ #            -  -  -  -  -  -  A  B  C  D  E  F  UN   UN
       2nd SMD @@ #            -  -  -  -  -  -  -  A  B  C  D  E  UN   UN
       cg3 color 501-1116 & %  -  J  A  B  C  -  D  E  F  G  H  I  JU   UN
       cg5 color 501-1267 & $  -  J  A  B  C  -  D  E  F  G  H  I  JU   UN w/o GP or GP+
        "    "    "   "   && $ -  H  A  B  C  -  D  E  F  -  -  -  JU   UN with GP or GP+
        "    "    "   "   %%   -  -  -  -  -  -  -  -  -  -  A  B  JU   UN with GP2

       #  If you wish to install a Multibus-VME converter-based board
          in slots 2-5, you just use converters 501-1054-04 rev A or
          later to avoid contention on the P2 memory bus.

          If you wish to install a Multibus-VME converted-based board
          in slots 10-12 and any combination of GP and GP boards are
          installed, you must use converters 501-1054-04 rev A or later
          to avoid contention on the GP/GB private bus.

       ## 501-1155     Xylogics 472 1/2" tape controller (6250 BPI)

          The older 501-1156 CPC 1/2" (1600 BPI) tape controller is not
          supported.

       ~  Avoid using slot 2 until absolutely necessary, to aid cooling
          of the CPU board. That is, if there is another slot available
          in which a board can be installed (even if it is not the most
          preferred slot) without impacting the functionality of
          another board, it should be installed in that slot instead of
          slot 2.

       ~~ The 501-1383 TAAC-1 consumes three spaces (slots 10, 11, and
          12). Besides jumpering P1003 and P1004 as shown in the table
          above, P1103, P1104, and P1203 must be jumpered (P1204 does
          not exist).

       *  501-1102     8M
          501-1254     32M

          There must always be a memory board in slot 6 and it must
          have a 220/270-ohm terminating resistor network installed at
          location 34-F for the 501-1102 8M board (see detailed
          description of board), or location 54-F for the 501-1254 32M
          board. Additional memory boards in slots 2-4 must NOT have
          the terminator installed.

       ** 501-1055     Graphics Processor
          501-1139     Graphics Processor Plus
          501-1268     Graphics Processor 2

       %  The 501-1268 GP2 will not function if any of the 501-1058
          graphics buffer, the 501-1116 Sun-3 color board (cg3), or the
          501-1014 Sun-2 color board are installed.

       %% The GP2 communicates with the 501-1267 cg5 over a private P2
          bus which must be enabled on the cg5 by a hardware switch
          setting. The cg5 must also be installed in slot 11 or 12.

       !  See "Important Note about ALM and MCP products", below.

       !! The 501-1157 ALM covers slots 11 and 12 but only connects
          electrically to slot 12. Hence, treat slot 11 as empty (i.e.
          jump both P1103 and P1104).

       &  The 501-1014 Sun-2 color framebuffer, 501-1116 cg3 color
          framebuffer, and 501-1267 cg5 color framebuffer are mutually
          exclusive.

       && When installed with either the 501-1055 graphics processor or
          the 501-1139 graphics processor plus, the cg5 may be
          installed in slots 2-9 only.

       $  The gp5's P2 bus must be disabled.

       $$ The 501-1202 MAPKIT covers two slots but only connects
          electrically to the slot nearest slot 1. Hence, treat the
          other slot as empty (i.e. jump both Px03 and Px04).
          Additionally, do not place a 1/2" tape controller or an SMD
          disk controller in a slot between the MAPKIT and the CPU, or
          the MAPKIT's throughput may be adversely affected.

       @  The 370-1128 SunLink Channel Adapter uses two slots. The Px03
          and Px04 jumpers must be unjumpered for both slots.
          Additionally, do not place a 1/2" tape controller or an SMD
          disk controller in a slot between the channel adapter and the
          CPU, or the channel adapter's throughput may be adversely
          affected.

       @@ 501-1154     Xylogics 450 SMD controller in Multibus-VME converter
          501-1166     Xylogics 451 SMD controller in Multibus-VME converter

   4/280 using external-connection-only SCSI controller

       board           slot:   1  2# 3# 4# 5# 6  7  8  9 10#11#12#Px03 Px04
       CPU 501-1100/1206       A  -  -  -  -  -  -  -  -  -  -  -  UN   UN
       1st memory 501-1102 *   -  -  -  -  -  A  -  -  -  -  -  -  JU   JU
       2nd memory 501-1102 *   -  A  -  -  -  -  -  -  -  -  -  -  JU   JU
       3rd memory 501-1102 *   -  -  A  -  -  -  -  -  -  -  -  -  JU   JU
       4th memory 501-1102 *   -  -  -  A  -  -  -  -  -  -  -  -  JU   JU
       GP/GP+/GP2 ** % %%      -  -  -  -  -  -  -  -  -  A  -  -  UN   UN
       GB 501-1058 # %         -  -  -  -  -  -  -  -  -  -  A  -  JU   JU
       TAAC-1 501-1383 ~~      -  -  -  -  -  -  -  -  -  A  -  -  JU   JU
       1st ALM-1 501-1165 # !  -  -  -  -  -  -  -  -  -  -  -  A  UN   N/A
       2nd ALM-1 501-1165 # !  -  -  -  -  -  -  -  -  -  -  A  -  UN   UN
       3rd ALM-1 501-1165 # !  -  -  -  -  -  -  -  -  -  A  -  -  UN   UN
       1st SCP 501-1158 #      -  A  B  C  D  -  E  -  -  -  -  -  UN   UN
       2nd SCP 501-1158 #      -  -  A  B  C  -  D  E  -  -  -  -  UN   UN
       1st MCP 501-1221 !      -  A  B  C  D  -  E  F  G  H  I  J  UN   UN
       2nd MCP 501-1221 !      -  -  A  B  C  -  D  E  F  G  H  I  UN   UN
       3rd MCP 501-1221 !      -  -  -  A  B  -  C  D  E  F  G  H  UN   UN
       4th MCP 501-1221 !      -  -  -  -  A  -  B  C  D  E  F  G  UN   UN
       1st ALM-2 501-1203 !    -  A  B  C  D  -  E  F  G  H  I  J  UN   UN
       2nd ALM-2 501-1203 !    -  -  A  B  C  -  D  E  F  G  H  I  UN   UN
       3rd ALM-2 501-1203 !    -  -  -  A  B  -  C  D  E  F  G  H  UN   UN
       4th ALM-2 501-1203 !    -  -  -  -  A  -  B  C  D  E  F  G  UN   UN
       1st SunLink Chnl Adpt @ -  A  A  C  C  -  D  D  F  F  H  H  UN   UN
                               -  -  B  B  -  -  -  E  E  G  G  -
       2nd SunLink Chnl Adpt @ -  -  -  A  A  -  B  B  D  D  F  F  UN   UN
                               -  -  -  -  -  -  -  C  C  E  E  -
       1st MAPKIT 501-1202 $$  -  A  A  C  C  -  D  D  F  F  G  G  UN   UN
                               -  -  B  B  -  -  -  E  E  -  -  -
       2nd MAPKIT 501-1202 $$  -  -  A  A  -  -  B  B  D  D  F  F  UN   UN
                               -  -  -  -  -  -  -  C  C  E  E  -
       SCSI 501-1138/1217      -  A  B  C  D  -  E  F  G  H  I  J  UN   UN
       cg3 color 501-1116 & %  -  A  B  C  D  -  E  F  G  H  I  J  JU   UN
       cg5 color 501-1267 & $  -  A  B  C  D  -  E  F  G  H  I  J  JU   UN w/o GP or GP+
        "    "    "   "   && $ -  A  B  C  D  -  E  F  G  -  -  -  JU   UN with GP or GP+
        "    "    "   "   %%   -  -  -  -  -  -  -  -  -  -  A  B  JU   UN with GP2
       2nd Ethernet 501-1153 # -  A  B  C  D  -  E  F  G  H  I  J  UN   UN
       1st IPC 501-1125        -  D  E  F  G  -  A  B  C  H  I  J  JU   UN
       2nd IPC 501-1125        -  C  D  E  F  -  -  A  B  G  H  I  JU   UN
       3rd IPC 501-1125        -  B  C  D  E  -  -  -  A  F  G  H  JU   UN
       4th IPC 501-1125        -  A  B  C  D  -  -  -  -  E  F  G  JU   UN
       1st 1/2" tape ## #      -  A  B  C  D  -  E  F  G  H  I  J  UN   UN
       2nd 1/2" tape ## #      -  -  A  B  C  -  D  E  F  G  H  I  UN   UN
       1st SMD @@ #            -  A  B  C  D  -  E  F  G  H  I  J  UN   UN
       2nd SMD @@ #            -  -  A  B  C  -  D  E  F  G  H  I  UN   UN

       #  If you wish to install a Multibus-VME converter-based board
          in slots 2-5, you just use converters 501-1054-04 rev A or
          later to avoid contention on the P2 memory bus.

          If you wish to install a Multibus-VME converted-based board
          in slots 10-12 and any combination of GP and GP boards are
          installed, you must use converters 501-1054-04 rev A or later
          to avoid contention on the GP/GB private bus.

       ## 501-1155     Xylogics 472 1/2" tape controller (6250 BPI)

          The older 501-1156 CPC 1/2" (1600 BPI) tape controller is not
          supported.

       *  501-1102     8M
          501-1254     32M

          There must always be a memory board in slot 6 and it must
          have a 220/270-ohm terminating resistor network installed at
          location 34-F for the 501-1102 8M board (see detailed
          description of board), or location 54-F for the 501-1254 32M
          board. Additional memory boards in slots 2-4 must NOT have
          the terminator installed.

       ** 501-1055     Graphics Processor
          501-1139     Graphics Processor Plus
          501-1268     Graphics Processor 2

       %  The 501-1268 GP2 will not function if any of the 501-1058
          graphics buffer, the 501-1116 Sun-3 color board (cg3), or the
          501-1014 Sun-2 color board are installed.

       %% The GP2 communicates with the 501-1267 cg5 over a private P2
          bus which must be enabled on the cg5 by a hardware switch
          setting. The cg5 must also be installed in slot 11 or 12.

       &  The 501-1014 Sun-2 color framebuffer, 501-1116 cg3 color
          framebuffer, and 501-1267 cg5 color framebuffer are mutually
          exclusive.

       && When installed with either the 501-1055 graphics processor or
          the 501-1139 graphics processor plus, the cg5 may be
          installed in slots 2-9 only.

       $  The gp5's P2 bus must be disabled.

       $$ The 501-1202 MAPKIT covers two slots but only connects
          electrically to the slot nearest slot 1. Hence, treat the
          other slot as empty (i.e. jump both Px03 and Px04).
          Additionally, do not place a 1/2" tape controller or an SMD
          disk controller in a slot between the MAPKIT and the CPU, or
          the MAPKIT's throughput may be adversely affected.

       @  The 370-1128 SunLink Channel Adapter uses two slots. The Px03
          and Px04 jumpers must be unjumpered for both slots.
          Additionally, do not place a 1/2" tape controller or an SMD
          disk controller in a slot between the channel adapter and the
          CPU, or the channel adapter's throughput may be adversely
          affected.

       @@ 501-1154     Xylogics 450 SMD controller in Multibus-VME converter
          501-1166     Xylogics 451 SMD controller in Multibus-VME converter

       !  See "Important Note about ALM and MCP products", below.

       ~~ The 501-1383 TAAC-1 consumes three spaces (slots 10, 11, and
          12). Besides jumpering P1003 and P1004 as shown in the table
          above, P1103, P1104, and P1203 must be jumpered (P1204 does
          not exist).

   4/280 using internal-connection-only or internal/external SCSI controller

       board           slot:   1  2# 3# 4# 5# 6  7  8  9 10#11#12#Px03 Px04
       CPU 501-1274            A  -  -  -  -  -  -  -  -  -  -  -  UN   UN
       1st memory 501-1102 *   -  -  -  -  -  A  -  -  -  -  -  -  JU   JU
       2nd memory 501-1102 *   -  A  -  -  -  -  -  -  -  -  -  -  JU   JU
       3rd memory 501-1102 *   -  -  A  -  -  -  -  -  -  -  -  -  JU   JU
       4th memory 501-1102 *   -  -  -  A  -  -  -  -  -  -  -  -  JU   JU
       GP/GP+/GP2 ** % %%      -  -  -  -  -  -  -  -  -  A  -  -  UN   UN
       GB 501-1058 # %         -  -  -  -  -  -  -  -  -  -  A  -  JU   JU
       TAAC-1 501-1383 ~~      -  -  -  -  -  -  -  -  -  A  -  -  JU   JU
       1st ALM-1 501-1165 # !  -  -  -  -  -  -  -  -  -  -  -  A  UN   N/A
       2nd ALM-1 501-1165 # !  -  -  -  -  -  -  -  -  -  -  A  -  UN   UN
       3rd ALM-1 501-1165 # !  -  -  -  -  -  -  -  -  -  A  -  -  UN   UN
       SCSI 501-1149/1167/1170 -  -  -  -  -  -  A  -  -  -  -  -  UN   UN
       1st SCP 501-1158 #      -  A  B  C  D  -  -  E  -  -  -  -  UN   UN
       2nd SCP 501-1158 #      -  -  A  B  C  -  -  D  E  -  -  -  UN   UN
       1st MCP 501-1221 !      -  A  B  C  D  -  -  E  F  G  H  I  UN   UN
       2nd MCP 501-1221 !      -  -  A  B  C  -  -  D  E  F  G  H  UN   UN
       3rd MCP 501-1221 !      -  -  -  A  B  -  -  C  D  E  F  G  UN   UN
       4th MCP 501-1221 !      -  -  -  -  A  -  -  B  C  D  E  F  UN   UN
       1st ALM-2 501-1203 !    -  A  B  C  D  -  -  E  F  G  H  I  UN   UN
       2nd ALM-2 501-1203 !    -  -  A  B  C  -  -  D  E  F  G  H  UN   UN
       3rd ALM-2 501-1203 !    -  -  -  A  B  -  -  C  D  E  F  G  UN   UN
       4th ALM-2 501-1203 !    -  -  -  -  A  -  -  B  C  D  E  F  UN   UN
       1st SunLink Chnl Adpt @ -  A  A  C  C  -  -  D  D  F  F  -  UN   UN
                               -  -  B  B  -  -  -  -  E  E  G  G
       2nd SunLink Chnl Adpt @ -  -  -  A  A  -  -  B  B  C  C  -  UN   UN
                               -  -  -  -  -  -  -  -  -  -  D  D
       1st MAPKIT 501-1202 $$  -  A  A  C  C  -  -  D  D  F  F  -  UN   UN
                               -  -  B  B  -  -  -  -  E  E  G  G
       2nd MAPKIT 501-1202 $$  -  -  A  A  -  -  -  B  B  C  C  -  UN   UN
                               -  -  -  -  -  -  -  -  -  -  D  D
       cg3 color 501-1116 & %  -  A  B  C  D  -  -  E  F  G  H  I  JU   UN
       cg5 color 501-1267 & $  -  A  B  C  D  -  -  E  F  G  H  I  JU   UN w/o GP or GP+
        "    "    "   "   && $ -  A  B  C  D  -  -  E  F  -  -  -  JU   UN with GP or GP+
        "    "    "   "   %%   -  -  -  -  -  -  -  -  -  -  A  B  JU   UN with GP2
       2nd Ethernet 501-1153 # -  A  B  C  D  -  -  E  F  G  H  I  UN   UN
       1st IPC 501-1125        -  A  B  C  D  -  -  E  F  G  H  I  JU   UN
       2nd IPC 501-1125        -  -  A  B  C  -  -  D  E  F  G  H  JU   UN
       3rd IPC 501-1125        -  -  -  A  B  -  -  C  D  E  F  G  JU   UN
       4th IPC 501-1125        -  -  -  -  A  -  -  B  C  D  E  F  JU   UN
       1st 1/2" tape ## #      -  -  -  -  -  -  -  A  B  C  D  E  UN   UN
       2nd 1/2" tape ## #      -  -  -  -  -  -  -  -  A  B  C  D  UN   UN
       1st SMD @@ #            -  -  -  -  -  -  -  A  B  C  D  E  UN   UN
       2nd SMD @@ #            -  -  -  -  -  -  -  -  A  B  C  D  UN   UN

       #  If you wish to install a Multibus-VME converter-based board
          in slots 2-5, you just use converters 501-1054-04 rev A or
          later to avoid contention on the P2 memory bus.

          If you wish to install a Multibus-VME converted-based board
          in slots 10-12 and any combination of GP and GP boards are
          installed, you must use converters 501-1054-04 rev A or later
          to avoid contention on the GP/GB private bus.

       ## 501-1155     Xylogics 472 1/2" tape controller (6250 BPI)

          The older 501-1156 CPC 1/2" (1600 BPI) tape controller is not
          supported.

       *  501-1102     8M
          501-1254     32M

          There must always be a memory board in slot 6 and it must
          have a 220/270-ohm terminating resistor network installed at
          location 34-F for the 501-1102 8M board (see detailed
          description of board), or location 54-F for the 501-1254 32M
          board. Additional memory boards in slots 2-4 must NOT have
          the terminator installed.

       ** 501-1055     Graphics Processor
          501-1139     Graphics Processor Plus
          501-1268     Graphics Processor 2

       %  The 501-1268 GP2 will not function if any of the 501-1058
          graphics buffer, the 501-1116 Sun-3 color board (cg3), or the
          501-1014 Sun-2 color board are installed.

       %% The GP2 communicates with the 501-1267 cg5 over a private P2
          bus which must be enabled on the cg5 by a hardware switch
          setting. The cg5 must also be installed in slot 11 or 12.

       &  The 501-1014 Sun-2 color framebuffer, 501-1116 cg3 color
          framebuffer, and 501-1267 cg5 color framebuffer are mutually
          exclusive.

       && When installed with either the 501-1055 graphics processor or
          the 501-1139 graphics processor plus, the cg5 may be
          installed in slots 2-9 only.

       $  The gp5's P2 bus must be disabled.

       $$ The 501-1202 MAPKIT covers two slots but only connects
          electrically to the slot nearest slot 1. Hence, treat the
          other slot as empty (i.e. jump both Px03 and Px04).
          Additionally, do not place a 1/2" tape controller or an SMD
          disk controller in a slot between the MAPKIT and the CPU, or
          the MAPKIT's throughput may be adversely affected.

       @  The 370-1128 SunLink Channel Adapter uses two slots. The Px03
          and Px04 jumpers must be unjumpered for both slots.
          Additionally, do not place a 1/2" tape controller or an SMD
          disk controller in a slot between the channel adapter and the
          CPU, or the channel adapter's throughput may be adversely
          affected.

       @@ 501-1154     Xylogics 450 SMD controller in Multibus-VME converter
          501-1166     Xylogics 451 SMD controller in Multibus-VME converter

       !  See "Important Note about ALM and MCP products", below.

       ~~ The 501-1383 TAAC-1 consumes three spaces (slots 10, 11, and
          12). Besides jumpering P1003 and P1004 as shown in the table
          above, P1103, P1104, and P1203 must be jumpered (P1204 does
          not exist).

   4/280 using external-connection-only SCSI controller and leaving
         slots 7-9 for non-Sun boards that use P2 bus signals

       board           slot:   1  2# 3# 4# 5# 6  7  8  9 10#11#12#Px03 Px04
       CPU 501-1274            A  -  -  -  -  -  -  -  -  -  -  -  UN   UN
       1st memory 501-1102 *   -  -  -  -  -  A  -  -  -  -  -  -  JU   JU
       2nd memory 501-1102 *   -  A  -  -  -  -  -  -  -  -  -  -  JU   JU
       3rd memory 501-1102 *   -  -  A  -  -  -  -  -  -  -  -  -  JU   JU
       4th memory 501-1102 *   -  -  -  A  -  -  -  -  -  -  -  -  JU   JU
       GP/GP+/GP2 ** % %%      -  -  -  -  -  -  -  -  -  A  -  -  UN   UN
       GB 501-1058 # %         -  -  -  -  -  -  -  -  -  -  A  -  JU   JU
       TAAC-1 501-1383 ~~      -  -  -  -  -  -  -  -  -  A  -  -  JU   JU
       1st ALM-1 501-1165 # !  -  -  -  -  -  -  -  -  -  -  -  A  UN   N/A
       2nd ALM-1 501-1165 # !  -  -  -  -  -  -  -  -  -  -  A  -  UN   UN
       3rd ALM-1 501-1165 # !  -  -  -  -  -  -  -  -  -  A  -  -  UN   UN
       1st SCP 501-1158 #      -  A  B  C  D  -  -  -  -  E  F  G  UN   UN
       2nd SCP 501-1158 #      -  -  A  B  C  -  -  -  -  D  E  F  UN   UN
       1st MCP 501-1221 !      -  A  B  C  D  -  -  -  -  E  F  G  UN   UN
       2nd MCP 501-1221 !      -  -  A  B  C  -  -  -  -  D  E  F  UN   UN
       3rd MCP 501-1221 !      -  -  -  A  B  -  -  -  -  C  D  E  UN   UN
       4th MCP 501-1221 !      -  -  -  -  A  -  -  -  -  B  C  D  UN   UN
       1st ALM-2 501-1203 !    -  A  B  C  D  -  -  -  -  E  F  G  UN   UN
       2nd ALM-2 501-1203 !    -  -  A  B  C  -  -  -  -  D  E  F  UN   UN
       3rd ALM-2 501-1203 !    -  -  -  A  B  -  -  -  -  C  D  E  UN   UN
       4th ALM-2 501-1203 !    -  -  -  -  A  -  -  -  -  B  C  D  UN   UN
       1st SunLink Chnl Adpt @ -  A  A  C  C  -  -  -  -  D  D  -  UN   UN
                               -  -  B  B  -  -  -  -  -  -  E  E
       2nd SunLink Chnl Adpt @ -  -  -  A  A  -  -  -  -  B  B  -  UN   UN
                               -  -  -  -  -  -  -  -  -  -  C  C
       1st MAPKIT 501-1202 $$  -  A  A  C  C  -  -  -  -  D  D  -  UN   UN
                               -  -  B  B  -  -  -  -  -  -  E  E
       2nd MAPKIT 501-1202 $$  -  -  A  A  -  -  -  -  -  B  B  -  UN   UN
                               -  -  -  -  -  -  -  -  -  -  C  C
       SCSI 501-1138/1217      -  A  B  C  D  -  -  -  -  E  F  G  UN   UN
       cg3 color 501-1116 & %  -  A  B  C  D  -  -  -  -  E  F  G  JU   UN
       cg5 color 501-1267 & $  -  A  B  C  D  -  -  -  -  E  F  G  JU   UN w/o GP or GP+
        "    "    "   "   && $ -  A  B  C  D  -  -  -  -  -  -  -  JU   UN with GP or GP+
        "    "    "   "   %%   -  -  -  -  -  -  -  -  -  -  A  B  JU   UN with GP2
       2nd Ethernet 501-1153 # -  A  B  C  D  -  -  -  -  E  F  G  UN   UN
       1st IPC 501-1125        -  A  B  C  D  -  -  -  -  E  F  G  JU   UN
       2nd IPC 501-1125        -  -  A  B  C  -  -  -  -  D  E  F  JU   UN
       3rd IPC 501-1125        -  -  -  A  B  -  -  -  -  C  D  E  JU   UN
       4th IPC 501-1125        -  -  -  -  A  -  -  -  -  B  C  D  JU   UN
       1st 1/2" tape ## #      -  A  B  C  D  -  -  -  -  E  F  G  UN   UN
       2nd 1/2" tape ## #      -  -  A  B  C  -  -  -  -  D  E  F  UN   UN
       1st SMD @@ #            -  A  B  C  D  -  -  -  -  E  F  G  UN   UN
       2nd SMD @@ #            -  -  A  B  C  -  -  -  -  D  E  F  UN   UN

       #  If you wish to install a Multibus-VME converter-based board
          in slots 2-5, you just use converters 501-1054-04 rev A or
          later to avoid contention on the P2 memory bus.

          If you wish to install a Multibus-VME converted-based board
          in slots 10-12 and any combination of GP and GP boards are
          installed, you must use converters 501-1054-04 rev A or later
          to avoid contention on the GP/GB private bus.

       ## 501-1155     Xylogics 472 1/2" tape controller (6250 BPI)

          The older 501-1156 CPC 1/2" (1600 BPI) tape controller is not
          supported.

       *  501-1102     8M
          501-1254     32M

          There must always be a memory board in slot 6 and it must
          have a 220/270-ohm terminating resistor network installed at
          location 34-F for the 501-1102 8M board (see detailed
          description of board), or location 54-F for the 501-1254 32M
          board. Additional memory boards in slots 2-4 must NOT have
          the terminator installed.

       ** 501-1055     Graphics Processor
          501-1139     Graphics Processor Plus
          501-1268     Graphics Processor 2

       %  The 501-1268 GP2 will not function if any of the 501-1058
          graphics buffer, the 501-1116 Sun-3 color board (cg3), or the
          501-1014 Sun-2 color board are installed.

       %% The GP2 communicates with the 501-1267 cg5 over a private P2
          bus which must be enabled on the cg5 by a hardware switch
          setting. The cg5 must also be installed in slot 11 or 12.

       &  The 501-1014 Sun-2 color framebuffer, 501-1116 cg3 color
          framebuffer, and 501-1267 cg5 color framebuffer are mutually
          exclusive.

       && When installed with either the 501-1055 graphics processor or
          the 501-1139 graphics processor plus, the cg5 may be
          installed in slots 2-9 only.

       $  The gp5's P2 bus must be disabled.

       $$ The 501-1202 MAPKIT covers two slots but only connects
          electrically to the slot nearest slot 1. Hence, treat the
          other slot as empty (i.e. jump both Px03 and Px04).
          Additionally, do not place a 1/2" tape controller or an SMD
          disk controller in a slot between the MAPKIT and the CPU, or
          the MAPKIT's throughput may be adversely affected.

       @  The 370-1128 SunLink Channel Adapter uses two slots. The Px03
          and Px04 jumpers must be unjumpered for both slots.
          Additionally, do not place a 1/2" tape controller or an SMD
          disk controller in a slot between the channel adapter and the
          CPU, or the channel adapter's throughput may be adversely
          affected.

       @@ 501-1154     Xylogics 450 SMD controller in Multibus-VME converter
          501-1166     Xylogics 451 SMD controller in Multibus-VME converter

       !  See "Important Note about ALM and MCP products", below.

       ~~ The 501-1383 TAAC-1 consumes three spaces (slots 10, 11, and
          12). Besides jumpering P1003 and P1004 as shown in the table
          above, P1103, P1104, and P1203 must be jumpered (P1204 does
          not exist).


IMPORTANT NOTE ABOUT ALM AND MCP PRODUCTS

  The 501-1203 ALM-2 shares VME vector interrupt assignments with the
501-1157 (-1165 also?) ALM-1 and the 501-1221 MCP. The ALM-2 also shares
VME address space with the MCP. There may also be a problem with
physical space in the chassis.

  If three ALM-1s with their associated MUX boxes are already
installed, there is no room to mount the ALM-2's Device Connector
Assembly (DCA). Fortunately, it is possible to mount the DCA to the
wall, floor, or anywhere else convenient.

  The ALM-2 and the MCP have exactly the same vector interrupt
assignments. The ALM-1 has vector interrupt assignments that occupy the
same range but are in the opposite order, as shown below:

       board number    device entry    ALM-1 vector    ALM-2/MCP vector
       ------------    ------------    ------------    ----------------
           1st              0              0x88            0x8B
           2nd              1              0x89            0x8A
           3rd              2              0x8A            0x89
           4th              3              0x8B            0x88

  To avoid conflicts, follow these rules:

  1) No more than four ALM-1, ALM-2, or MCP boards total may be
installed in a single cardcage.

  2) When installing ALM-2s or MCPs, the boards must be installed in
the proper address order, counting all boards of either type previously
installed. This ensures that no ALM-2s or MCPs will attempt to use the
same vector interrupt. For example, if an ALM-2 is installed and you
wish to install an MCP, it must be installed as the *second* MCP, not
the first. If it is installed as the first, it will attempt to use the
same vector interrupt as the existing ALM-2.

  3) Because the ALM-1 vector interrupt assignments are the reverse of
the others, any ALM-1 boards must be installed in their normal order,
counting *only* ALM-1s. This ensures that as long as no more than four
boards total of any of these kinds are installed, the ALM-1s will never
use the same part of the range as the ALM-2s and MCPs.

  4) Additionally, the ALM-2 and MCP occupy identical addresses in the VME
address space, and both use /dev entries of mcp0 through mcp3. Each
additional board installed uses the next available entry, regardless of
the type (ALM-2 or MCP, but not ALM-1) of the boards installed
previously. The addresses must also be set (via jumpers or switches?) on
the boards -- as stated in rule 2, the board must be installed counting
all boards of either type previously installed.

  5) For deskside systems that support the ALM-1, only one such board
may coexist in the cardcage with ALM-2 and/or MCP boards.



             END OF PART VI OF THE SUN HARDWARE REFERENCE

==============================================================================

PART VII
                               ========
                         APPENDICES (cont'd)


APPENDICES (cont'd)
===================

   Repairs and modifications
   -------------------------

  These instructions have been garnered from various sources on the net
and COME WITH NO WARRANTY WHATSOEVER. IF YOU TRY A PROCEDURE DESCRIBED
HERE AND TRASH YOUR HARDWARE OR YOURSELF, OR ANYTHING ELSE BAD HAPPENS,
IT'S YOUR PROBLEM. YOU HAVE BEEN WARNED.

1) Toasted serial ports on a 3/60

       There are two RS-232 UARTs on the motherboard, one for the
       keyboard/mouse and one for the two serial ports. On at least one
       revision of the motherboard, these UARTs are Zilog Z85C008PSC
       chips socketed in locations U400 and U401. However, the chips
       more likely to be fried are the driver chips, which are right
       behind the serial ports on the motherboard, and are labelled on
       the bottom of the motherboard: U409 (26LS29), U411 (26LS29),
       U406 (26LS32), U413 (26LS32), and U407 (26LS32). If replacing
       these chips doesn't help matters, the capacitors (U412) near
       these chips are also prone to failure. Additionally, there is a
       resistor pack for each port (R401 and R402) which may be
       suspect.

2) Philips monochrome monitor repair

       Components likely to fail:

               the flyback transformer (available from Sun)
               capacitor C209 (replace with 10uF tantalum, 35-50V)
               capacitor C207 (replace with temperature-stable
                               1000pF (0.001uF) capacitor)

       In addition, the following capacitors have failed at one time or
       another on various monitors:

               C205, C412, C401, C315, C318
               C421 (replace with cap rated for 63V or better)

       The R215 and R216 470-ohm vitreous-coated wirewound resistors
       run very hot and may split. They also get very delicate and may
       fail if bumped.

3) Clock speed/chip upgrades to a 3/60:

       From Craig Dewick:

       The standard 3/60 has a 40Mhz master clock which is divided by
       two to get the CPU clock. One of the fortunate design quirks of
       the 3/60's for us hacker-types is that everything has its own
       oscillator. There's the master 40Mhz oscillator for the bulk of
       the major computing hardware, a 20Mhz clock for the ethernet
       hardware, another oscillator for the serial port controllers,
       and yet another one for the real time clock.

       As for interchanging chip types, 68881 and 68882 math
       coprocessors are completely interchangable. I'm running a 68020
       with a 68882 in my 3/60 and there are no compatibility problems.
       However, putting in a 68030 requires soldering in a new socket
       next to where the 68020 currently sits (since a 68030 has more
       pins).

       Actually you will find that there is virtually no performance
       increase by replacing the 68020 with a 68030 because [even] if
       there is a hacked kernel that works with a 68030 on a 3/60
       board, it can't use any of the special features of the 68030
       (like the MMU cache) which the 68020 doesn't have since the 3/60
       doesn't have the required support hardware to use it (neither
       does the 3/80,  BTW).

       The only performance increase you'll get is by swapping out the
       master oscillator for faster one. My machine works fine with a
       50Mhz one, but some people have reported problems using 50Mhz
       and have had to be satisfied with 48Mhz instead.

       The only Sun-3 machines which make use of the 68030's extra
       features are the [3/4xx models], which are rackmounted,
       VME-based monsters, but good quality machines nonetheless.

       [...]

       About a year ago I upgraded my 3/60 to run the CPU and math
       coprocessor at 25Mhz instead of 20MHz. It's an easy mod to do
       providing you can get a 25Mhz rated CPU and coprocessor, and you
       can find a place selling 50MHz can oscillators.

       You may need to replace the 100ns SIMMs with faster ones as
       well. I did when I upgraded my machine, but others report no
       problems with the faster clock speed.

4) Upgrading a 501-1102 8M VME memory board to 501-1102-11:

       From Gary W. Cook:

       [Don't know what the starting -zz should be for this mod to
       work.]

       Lift pin 9 of IC U0108 at location E29, then install a jumper
       wire from the lifted pin to pin 9 of IC U0103 at location J31.


   Part number index
   -----------------

  Sun part numbers have up to four sections, xxx-yyyy-zz Rev ?.

  xxx is the commodity code, a three digit number which indicates a
major grouping of part types, although the grouping isn't perfect. yyyy
is a four digit number which indicates the individual part. zz is the
two-digit dash number, and ? is a letter which between them indicate the
revision level of the part. The parts are indexed below by the first two
sections only, with a few exceptions where the dash number zz is needed.

  Note that 270- parts are the raw PWBs before components are added.
Generally the corresponding assembled PWA has the same four-digit
number, but a commodity code of 501-. Hence, if all you can find on a
board is a 270- part number, try looking under 501-. With only a few
exceptions 270- parts are not indexed below.

  100- parts are ICs, but some small regulator ICs are under 160-. 270-
parts are PWBs, 501- parts are PWAs or may be larger assemblies of other
501- parts. 520- through 529- parts are 100- parts with programming
installed. 530- parts are cables.

  Note that these part numbers have been gleaned from all over,
including a lot of for-sale postings on the net. Take them with a grain
of salt.

  A '*' between the part number and the description means that more
extensive information on the part is available elsewhere in this
document.

100-1628     NVRAM 386i and 4/3xx/4xx 2Kx8 CMOS
100-2822     NVRAM SPARCcenter 2000 8Kx8 CMOS
100-2922     EEPROM SPARCserver 1000/SPARCcenter 2000 2Kx8
100-3528     NVRAM SPARCserver 1000 8Kx8 CMOS
120-1613     220/270-ohm terminator pack for 501-1102/1254/1451/1576 memory VME
140-1027     probably misprint for 150-1027
150-1027     fuse, 1A subminiature, 386i Ethernet and SCSI
150-1162     fuse, 1.5A, SPARCstation IPC keyboard/SCSI ?
150-1174     fuse, 2A, 3/80 Enet/kb, 4/3xx, SPARCstation 1,1+,IPC Enet/kb/SCSI
150-1346     external SCSI active terminator
150-1383     fuse, 1.5A, 3/80 SCSI
150-1537     SCSI terminator
150-1669     fused shunt
150-1974     fuse, 2A, SPARCstation IPC Ethernet ?
150-2085     fuse, 5A, SM20 SPARC module
180-1097     6' 115VAC power cable right angle
180-1117     video power cable
270-1059     6U/9U VME converter with backplane SCSI passthrough
270-1138     6U/9U VME converter with external SCSI connector
270-1402     bw2 analog/ECL framebuffer 3/80 P4
289-8849     type-3 keyboard
300-1016     3/160 850W Fuji PS
300-1028     176W Sun-3 shoebox PS, 5 taps (California DC)
300-1038     4/75 (SPARCstation 2) 85W power supply
300-1045     134W Sun-3 shoebox PS, 4 taps (Computer Products (Boschert))
300-1065     690MP 1200W power supply
300-1073     S2000 power supply 2410W
300-1080     60W shoebox power supply
300-1081     Sparc 10 140W power supply
300-1096     power supply 269W Zytek
300-1100     S2000 AC distribution box
300-1105     44W shoebox power supply
300-1215     SPARCstation 5/20 power supply 150W
300-8504     386i power supply 265W
320-1005     type-4 US/UK keyboard
320-1009     type-4 UK keyboard
320-1040     type-4 Japanese keyboard
320-1072     type-5 US keyboard
320-1073     type-5 US/Unix keyboard
320-1085     type-5 UK keyboard
330-1228     hard drive holder
330-1242     hard drive holder
330-1304     SPARCstation IPC light pipe
340-1720     mounting bracket in Sun-3 shoebox
340-2611     fan 690 SCSI tray
360-1000     19" color monitor
360-1014     19" mono monitor
360-1015     15" color monitor (Hitachi HM4115) 1152x900 4BNC
360-1033     14" color monitor (Seiko CM1421) 1024x768 4BNC
365-1000     19/20" color monitor (Hitachi HM4119SA) 1152x900 4BNC
365-1005     19" mono monitor (Displaytek L7201SY01) 1600x1280 DB9
365-1006     19" color monitor (Hitachi) 4BNC
365-1007     19" mono monitor (Motorola) 1600x1280 DB9
365-1009     19" grayscale monitor (Philips) 2BNC
365-1010     19" grayscale monitor (Philips) 1152x900 2BNC
365-1011     19" mono monitor (Philips) 240VAC DB9
365-1013     19" mono monitor (Philips) DB9
365-1014     19" mono monitor (Philips) 240VAC DB9
365-1016     19" mono monitor (Elston DM19A0) 1152x900 DB9
365-1020   * 16" color monitor (Sony Trinitron) 4BNC? 13W3? 115VAC
365-1021     19" mono monitor
365-1022     16" color monitor (Sony) 240VAC 4BNC
365-1033     19" color monitor (Sony Trinitron)
365-1037     19" mono monitor 1152x900
365-1038     19" color monitor (Sony GDM-1604) 1152x900 4BNC
365-1039     19" color monitor (Sony) 240VAC 4BNC
365-1044     19" mono monitor (Philips) DB9
365-1045     19" mono monitor (Philips) 240VAC DB9
365-1047     19" mono monitor (Motorola L7201SY01) 1600x1280 DB9
365-1051     19" mono monitor (Philips) 115/240VAC 1152x900 DB9
365-1053     19" grayscale monitor (Philips) 2BNC
365-1054     19" color monitor (Hitachi) 240VAC 4BNC
365-1055     17" grayscale monitor (Zenith) 90-240VAC 13W3
365-1056     19" color monitor (Hitachi) 115VAC 4BNC
365-1059     mouse and pad kit
365-1063   * 16" color monitor (Sony Trinitron GDM-1604B15) 13W3 115VAC 1024x768
365-1065     19" color monitor (Sony GDM-1955A15) 1152x900 13W3
365-1066     19" color monitor (Sony GDM-1955A40) 1152x900 240VAC 13W3
365-1071     19" grayscale monitor (Philips) 1152x900 13W3
365-1073     19" color monitor 115/240VAC
365-1079     16" color (Sony Trinitron) 13W3
365-1080     16" color monitor (Sony Trinitron GDM-1604A40) 1024x768 240VAC 13W3
365-1081     19" color monitor (Sony Trinitron) 115VAC 13W3
365-1082     19" color monitor (Sony Trinitron) 240VAC 13W3
365-1086     19" mono monitor (Philips) 1152x900 DB9
365-1087     19" mono monitor (Philips) 1152x900 DB9
365-1089     SPARCprinter engine
365-1092     16" color monitor (Sony Trinitron) 13W3
365-1093     16" color monitor (Sony Trinitron GDM-1604B40) 240VAC 13W3
365-1094     17" grayscale monitor (Zenith) 90-240VAC 13W3
365-1095     19" color monitor (Sony) multisync 115/240VAC 13W3
365-1099     19" grayscale monitor (Hitachi? Philips?) multisync 115/240VAC 13W3
365-1100     17" grayscale monitor (71.7KHz horiz, 76Hz vert, 1152x900)
365-1112     19" color monitor (Sony Trinitron) multisync
365-1113   * 16" monitor (Sony) multisync 115/240VAC 13W3
365-1123     19" mono monitor (Motorola L7201SY01) 115VAC 1600x1280 DB9
365-1128     19" mono monitor (Motorola L7201SY01) 115VAC 1600x1280 DB9
365-1130     16/17" color monitor (Sony GDM-1662B) multisync 115/240VAC 13W3
365-1140     19" grayscale monitor (Philips) multisync 13W3
365-1143     16/17" color monitor (Philips C1764) 1152x900 13W3
365-1144     19" mono high-res monitor
365-1151   * 16" monitor (Sony) 13W3 115/240VAC
365-1154     19" grayscale monitor 76Hz vert
365-1159   * 16/17" color monitor (Sony Trinitron GDM-1662B) 13W3 115/240VAC
365-1160     19" Sun color monitor 76Hz vert, multiscan 13W3
365-1167     flat-screen color monitor (Sony GDM-20D10)
365-1168     19/20" grayscale monitor multiscan
365-1316     17" Sun color monitor
365-1324     20" flat-screen color monitor (Sony GDM-20D10) 13W3 multiscan
370-0167 ? * Computer Products Corporation TAPEMASTER Multibus
370-0288     See 501-0288
370-0502 ? * Computer Products Corporation TAPEMASTER Multibus
370-0502 ?   Xylogics 472 1/2" 6250bpi tape controller Multibus
370-0551     141M Micropolis ESDI drive
370-1010   * Adaptec ACB4000 SCSI-MFM controller
370-1011   * Sysgen SC4000 SCSI/QIC-II controller
370-1012   * Xylogics 450 Multibus SMD controller
370-1021   * Sky Fast Floating-point Processor (FFP) Multibus
370-1029     Sky Fast Floating-point Processor (FFP) 6U VME
370-1039     ALM-8 set (370-1046/1047)
370-1040     ALM-14 set (370-1047/1048)
370-1046     ALM-8 USART Multibus
370-1047     ALM-8/14 controller Multibus
370-1048     ALM-14 USART Multibus
370-1049     SCP Multibus
370-1065     fan assembly
370-1095     type-3 keyboard
370-1128     SunLink channel adapter VME
370-1133     327M Micropolis ESDI drive
370-1165     690 power sequencer
370-1170     Sun-4 mouse
370-1200     104M Quantum SCSI drive
370-1207     4/75 (SPARCstation 2) 1.44M floppy drive
370-1218     150M SCSI QIC tape
370-1247     60M 1/4" tape drive
370-1312     white bezel CD-ROM
370-1327     207M Maxtor SCSI drive
370-1347     black bezel Sony CD-ROM
370-1354     3.5" Sony floppy drive
370-1368     Sun-4 mouse pad
370-1377     1.3G SCSI disk
370-1379     S2000 fan assembly
370-1388   * SM100 dual Ross SPARC module Mbus 40MHz 4/6xx
370-1392     424M SCSI disk
370-1401   * Prestoserve NFS accelerator SBus
370-1407     cg12 GS SBus framebuffer (triple slot)
370-1414     microphone
370-1420     4/75 (SPARCstation 2) 1.44M floppy drive
370-1546     1.05G SCSI disk
370-8012     power supply for SMD cabinet
500-8013     boot PROM daughtercard for 4/E CPU 501-8035/8058/8064
501-0288   * 3COM 3C400 Multibus Ethernet
501-0289   * cgone(?) color framebuffer Multibus
501-0461     Color processor Multibus
501-1003   * Multibus monochrome video/keyboard/mouse ECL-only
501-1004   * Sun-2 Multibus Ethernet
501-1006   * Sun-2 SCSI/serial Multibus
501-1007   * 100U,2/120,2/170 CPU
501-1013   * 1M Multibus RAM
501-1014   * cgtwo (2160) color framebuffer VME (2/130/160,3/1xx,3/2xx,3/4xx)
501-1020   * 2/50 1M memory VME
501-1045   * 6U VME "Sun-2" SCSI host adapter
501-1046   * 2/50 2M memory VME
501-1047   * 2/50 4M memory VME
501-1048   * 1M Multibus RAM
501-1051   * 2/120, 2/170 CPU Multibus
501-1052   * Multibus monochrome video/keyboard/mouse ECL/TTL
501-1054     Multibus-VME converter
501-1055   * GP graphics processor VME
501-1058   * GB graphics buffer VME
501-1067   * 2/50 3M memory VME
501-1070     2/130, 2/160 1M memory VME
501-1071     2/130, 2/160 3M memory VME
501-1074   * 3/1xx (3004/"Carerra") CPU VME 2M
501-1075   * 3/50 motherboard w/o FPU
501-1079   * 2/50 0M memory VME
501-1089   * cg3 framebuffer (3160) VME 4BNC double-buffered
501-1090     2/120 9-slot Multibus backplane
501-1094   * 3/1xx (3004/"Carerra") CPU VME 4M
501-1096     2/130, 2/160 2M memory VME
501-1097     2/130, 2/160 4M memory VME
501-1100   * 3/2xx CPU VME
501-1102   * 3/2xx,3/4xx,4/2xx 8M VME
501-1104     cg2 framebuffer VME
501-1105     FPA VME
501-1111   * 3/75 2M VME
501-1116   * cg3 framebuffer (3160) VME 4BNC
501-1121   * 3/75 0M VME
501-1122   * 3/75 4M VME
501-1125     IPC (floppy/parallel)
501-1131   * 3/1xx 2M VME
501-1132   * 3/1xx 4M VME
501-1133   * 3/50 motherboard w/o FPU
501-1134   * 3/110 CPU VME
501-1138   * combo: 501-1045 "Sun-2" SCSI in 270-1138 6U/9U VME
501-1139   * GP+ graphics accelerator VME
501-1141   * 2050 CPU VME 1M (2/50)
501-1142   * 2050 CPU VME 2M (2/50)
501-1143   * 2050 CPU VME 4M (2/50)
501-1144   * 2050 CPU VME 1M (2/130/160)
501-1145   * 2050 CPU VME 2M (2/130/160)
501-1146   * 2050 CPU VME 4M (2/130/160)
501-1147     combo: 501-1079 2/50 0M VME + 501-1045 "Sun-2" SCSI 6U VME
501-1148     combo: 501-1079 2/50 0M VME + 370-1029 Sky FFP 6U VME
501-1149   * combo: 501-1045 "Sun-2" SCSI in 270-1059 6U/9U VME
501-1151     Sky FFP VME
501-1153     Ethernet VME (Intel ethernet chip)
501-1154     Xylogics 450 SMD controller, Multibus in Multibus-VME converter
501-1155     Xylogics 472 1/2" tape controller (6250bpi) VME
501-1156     CPC 1/2" tape controller (1600bpi) VME
501-1157     ALM-1 VME
501-1158     SCP VME
501-1162   * 3/50 motherboard w/o FPU
501-1163   * 3/1xx (3004/"Carerra") CPU VME 2M
501-1164   * 3/1xx (3004/"Carerra") CPU VME 4M
501-1165     ALM-1 VME
501-1166     Xylogics 451 SMD controller, Multibus in Multibus-VME converter
501-1167   * combo: 501-1045 "Sun-2" SCSI in 270-1059 6U/9U VME
501-1170   * combo: 501-1236 "Sun-3" SCSI in 270-1059 6U/9U VME
501-1172     combo: 501-1121 3/1xx 0M VME + 501-1045 "Sun-2" SCSI 6U VME
501-1191     3x2 SCSI W/O P2
501-1199   * 4/1xx CPU VME 8M w/o FPU
501-1202     MAPKIT VME
501-1203     ALM-2 VME
501-1205   * 3/60 motherboard 4M with mono
501-1206   * 3/2xx CPU VME
501-1207   * 3/50 motherboard with FPU
501-1208   * 3/1xx (3004/"Carerra") CPU VME 4M
501-1209   * 3/110 CPU VME
501-1210   * cg4 framebuffer P4 3/60 4BNC
501-1214     IPC VME (286 with 1M, floppy port, parallel port)
501-1217   * combo: 501-1236 "Sun-3" SCSI in 270-1138 6U/9U VME
501-1221     MCP VME
501-1232   * 4M Multibus RAM
501-1236   * 6U VME "Sun-3" SCSI host adapter
501-1237   * 4/1xx CPU VME 8M with FPU
501-1239     1M x 9 SIMM 30-pin 100ns 3/60
501-1241   * 386i/150 motherboard
501-1243   * 386i cgthree color framebuffer 1152x900
501-1244   * 386i monochrome framebuffer 1152x900
501-1247   * mg3 ECL/TTL framebuffer P4 DB9
501-1248   * cg4 framebuffer P4 4BNC
501-1249     Xylogics 7053 SMD controller VME
501-1254   * 4/2xx 32M VME
501-1267   * cg5 framebuffer VME
501-1268   * gp2 graphics accelerator VME
501-1274   * 4/2xx CPU VME with FPC-6/4
501-1276     FDDI/DX VME
501-1277     3/50, 3/60 chassis
501-1278     gp2 graphics processor VME
501-1280     2-port X.25
501-1286   * 386i cgthree color framebuffer 1024x768
501-1298   * 386i/150/250 8M XP cache
501-1299   * 3/4xx CPU VME
501-1314     256K SIMM x 9 30-pin 4/1xx
501-1316   * 4/3xx CPU VME 8M
501-1317   * 4/330 16M 3U VME
501-1319   * cg3 framebuffer (3160) VME 1024x1024
501-1322   * 3/60 motherboard 4M w/o mono
501-1324   * 386i/250 motherboard
501-1325   * 386i/150/250 4M XP cache
501-1333   * 4/4xx 32M VME
501-1334   * 3/60 motherboard 0M with mono
501-1345   * 3/60 motherboard 0M w/o mono
501-1346     1M SIMM 3/60LE
501-1349     256K SIMM 3/60LE
501-1352   * 386i GXi color framebuffer
501-1371   * cg8 framebuffer P4 4BNC
501-1374   * cg6 framebuffer P4 13W3
501-1375   * 1M SIMM 386i/150/250
501-1378   * 3/60LE motherboard
501-1381   * 4/4xx CPU VME
501-1382   * 4/60 (SPARCstation 1) motherboard
501-1383   * TAAC-1 application accelator, POP board, VME
501-1384     4/1xx FPU2
501-1394   * 386i/150 4M dynamic
501-1397   * 386i SunVGA/EGA
501-1401   * 3/80 motherboard
501-1402   * mg4 ECL/TTL/Analog monochrome framebuffer P4 3/80 backpanel
501-1407     24-bit FRAM buffer SPARCstation 10
501-1408     1M SIMM x 9 100ns 30-pin 3/80, 4/3xx, SPARCstation 1,1+
501-1413   * 386i/250 motherboard
501-1414   * 386i/150 motherboard
501-1415     cg3 framebuffer SBus
501-1419     mg1 framebuffer SBus
501-1423   * see 555-1423
501-1424   * 1M SIMM 386i/150/250
501-1433   * 386i monochrome framebuffer 1024x768
501-1434   * cg9 framebuffer VME 13W3
501-1436   * 4/330 8M 6U VME
501-1441   * 386i/150 8M dynamic
501-1443   * cg4 framebuffer P4 13W3 3/80 backpanel
501-1447   * TAAC-1 application accelerator, DFB board, VME
501-1450     Ethernet SBus
501-1451   * 3/4xx,4/2xx 32M VME
501-1455     mg2 framebuffer SBus 13W3
501-1462   * 4/1xx CPU VME 16M w/o FPU
501-1463   * 4/1xx CPU VME 16M with FPU
501-1464   * 4/1xx CPU VME 32M w/o FPU
501-1465   * 4/1xx CPU VME 32M with FPU
501-1466     1M SIMM x 9 30-pin 4/1xx, 4/3xx, 4/6xx (expansion only)
501-1481     cg6 framebuffer SBus
501-1482   * 386i/150/250 0M XP cache
501-1483   * DC to DC converter for 501-1637 in 3/80
501-1491   * 4/2xx CPU VME with FPU-2 2-hi backpanel
501-1495   * 4/3xx 48M VME
501-1505   * cg6 framebuffer P4 3/80 backpanel 13W3
501-1510     1M SIMM 386i/150/250
501-1511     Serial/parallel SPC/S
501-1512   * 4/1xx CPU VME 8M w/o FPU
501-1513   * 4/1xx CPU VME 8M with FPU
501-1514   * 4/1xx CPU VME 16M w/o FPU
501-1515   * 4/1xx CPU VME 16M with FPU
501-1516   * 4/1xx CPU VME 32M w/o FPU
501-1517   * 4/1xx CPU VME 32M with FPU
501-1518   * cg8 framebuffer P4 13W3
501-1522   * 4/2xx CPU VME with FPC-6/4 2-hi backpanel
501-1532   * cg6 framebuffer P4 13W3
501-1537   * VX Visualization Accelerator/Super Frame Buffer VME
501-1538   * MVX Visualization Accelerator/Pixel Processor VME
501-1563   * 4/3xx 24M VME
501-1564   * 4/3xx 8M VME
501-1567   * 386i monochrome framebuffer 1152x900
501-1568   * 386i monochrome framebuffer 1024x768
501-1539     ISP-80 IPI disk controller VME
501-1540     Bi-Pro for SPARCprinter, SBus
501-1544     1M SIMM x 9 30-pin 4/3xx
501-1550   * 3/4xx CPU VME
501-1561     mg2 framebuffer SBus 13W3
501-1563     4/3xx VME memory (1M or 4M SIMMs, max 48M/192M)
501-1565     1M SIMM x 9 30-pin 4/3xx, 4/6xx (expansion only)
501-1567     mono framebuffer 386i 1152x900
501-1568     mono framebuffer 386i 1024x768 64KHz horizontal 66Hz vertical
501-1576   * 3/4xx,4/2xx 16M VME
501-1577   * cg8 framebuffer 13W3 3/80 backpanel
501-1596     frontplane connector for VX/MVX Visualization Accelerator
501-1624     gt (Graphics Tower) graphics accelerator 13W3
501-1625     4M SIMM x 9 30-pin 80ns SPARCstation 1,1+,IPC
501-1627   * 4/20 (SPARCstation SLC) motherboard 8M
501-1629   * 4/60 (SPARCstation 1) motherboard
501-1632     4/65 (SPARCstation 1+) motherboard
501-1637   * mg3 ECL/TTL framebuffer P4 DB9 3/80 backpanel
501-1638   * 4/75 (SPARCstation 2) motherboard 16M FCC-A
501-1645     cg6 framebuffer SBus 2-slot 13W3
501-1650   * 3/80 motherboard
501-1656   * 4/1xx CPU VME 8M w/o FPU
501-1657   * 4/1xx CPU VME 8M with FPU
501-1658   * 4/1xx CPU VME 16M w/o FPU
501-1659   * 4/1xx CPU VME 16M with FPU
501-1660   * 4/1xx CPU VME 32M w/o FPU
501-1661   * 4/1xx CPU VME 32M with FPU
501-1667     SBus dummy "Load Board"
501-1672     cg6 framebuffer SBus 13W3
501-1676     4M SIMM x 33 72-pin SLC
501-1680   * 4/20 (SPARCstation SLC) motherboard 0M
501-1682     4M SIMM x 9 30-pin 4/3xx, 4/6xx (expansion only)
501-1686   * 4/6xx motherboard 0M VME
501-1689   * 4/40 (SPARCstation IPC) motherboard 8M FCC-A
501-1690     4/40 (SPARCstation IPC) motherboard ?
501-1692     Graphics Tower SBus to GT front end interface
501-1693     Graphics Tower SBus adapter
501-1697     1M SIMM x 9 30-pin 80ns 4/3xx, SPARCstation 1+,IPC
501-1698     4M SIMM x 33 72-pin SPARCstation SLC, ELC
501-1703   * 4/3xx 32M VME
501-1704   * 4/330 32M 3U VME
501-1706     Videopics framegrabber SBus 2RCA
501-1711   * 4/330 16M 3U VME
501-1718     cg3 framebuffer SBus 66/76Hz vertical 13W3
501-1720   * 4/20 (SPARCstation SLC) motherboard 8M
501-1721   * 4/4xx 128M VME
501-1723   * 4/330 8M 3U VME
501-1725     HSI/S high-speed sync serial
501-1727     HSI SBus PCB
501-1730     4/25 (SPARCstation ELC) motherboard ?
501-1733     SPARCstation 10 motherboard
501-1739     4M SIMM x 9 80ns 30-pin 4/3xx, 4/6xx, SPARCstation IPC,1,1+,2
501-1742   * 4/3xx CPU VME 32M
501-1744   * 4/75 (SPARCstation 2) motherboard 0M FCC-A
501-1748   * 4/20 (SPARCstation SLC) motherboard
501-1755   * 4/330 32M 3U VME
501-1767   * 4/6xx 64M VME
501-1776     4/20 (SPARCstation SLC) motherboard ?
501-1777     4/20 (SPARCstation SLC) motherboard ?
501-1780   * 4/50 (SPARCstation IPX) motherboard 16M
501-1785   * 16M SIMM 70ns SPARCstation 10
501-1810   * 4/50 (SPARCstation IPX) motherboard 0M
501-1812     4M SIMM x 33 72-pin SPARCstation ELC, IPX
501-1817     8M SIMM 70ns SPARCserver 1000/SPARCcenter 2000
501-1822     16M SIMM x 33 72-pin SPARCstation ELC, IPX
501-1823   * 4/75 (SPARCstation 2) 32M primary expansion memory
501-1824   * 4/75 (SPARCstation 2) 32M secondary expansion memory
501-1835   * 4/40 (SPARCstation IPC) motherboard 8M FCC-B
501-1840     SBus expansion adapter
501-1845     ZX accelerated framebuffer
501-1847   * Prestoserve NFS accelerator VME
501-1850     SCSI SBus
501-1855   * ISP-80 IPI disk controller
501-1858   * 4/75 (SPARCstation 2) motherboard 16M FCC-B
501-1859   * 4/75 (SPARCstation 2) motherboard 0M FCC-B
501-1860     SBE/S SCSI/Ethernet SBus
501-1861   * 4/25 (SPARCstation ELC) motherboard
501-1866   * SPARCcenter 2000 motherboard XDBus 0M
501-1870   * 4/40 (SPARCstation IPC) motherboard 8M FCC-B
501-1881     Ethernet SBus
501-1889   * SM30 SPARC module Mbus 33MHz SPARCstation 10 model 20
501-1894     4/6xx 501-1686 (<= -11) or 501-2055 (>= -12) w/SM100, 64M
501-1895     4/6xx 501-1686 (<= -3) or 501-2055 (>= -4) w/2*SM100, 64M
501-1896     4/6xx 501-1686 (<= -11) or 501-2055 (>= -12) w/SM100, 128M
501-1897     4/6xx 501-1686 (<= -11) or 501-2055 (>= -12) w/SM100, 128M
501-1899   * 4/4xx CPU 0M W/FPP
501-1901   * 4/6xx 0M VME
501-1902     SBus differential SCSI
501-1909     cg3 framebuffer SBus
501-1910     Bi-Pro for SPARCprinter, SBus
501-1912   * 4/75 (SPARCstation 2) motherboard 32M FCC-B
501-1915     16M SIMM x 33 72-pin SPARCstation IPX
501-1926   * 4/75 (SPARCstation 2) motherboard 32M FCC-B
501-1930   * 64M SIMM 70ns SPARCstation 10
501-1932     SBus token ring
501-1938-07  SPARCstation 10 501-1733 (270-1733-12) w/SM30, 32M or 501-2259 (270-1733-13) w/SM30, 32M, GT/ZX
501-1938-09  SPARCstation 10 501-2365 (270-1733-14) w/SM30, 32M, GT/ZX
501-1940     SPARCstation 10 501-2365 (270-1733-14) w/SM51, 64M, GT/ZX
501-1941-05  SPARCstation 10 501-1733 (270-1733-12) w/SM41, 32M or 501-2259 (270-1733-13) w/SM41, 32M, GT/ZX
501-1941-07  SPARCstation 10 501-2365 (270-1733-14) w/SM41, 32M, GT/ZX
501-1942     SPARCstation 10 501-2365 (270-1733-14) w/SM52, 64M, GT/ZX
501-1955     SBus expansion
501-1957     SCSI tray ID board
501-1959   * 4/50 (SPARCstation IPX) motherboard 16M
501-1974   * 4/40 (SPARCstation IPC) motherboard 8M FCC-B
501-1979   * SPARCserver 1000 system control board
501-1981     SunPC accelerator 486DX 25MHz SBus
501-1989   * 4/75 (SPARCstation 2) motherboard 16M FCC-B
501-1991     4M SIMM 60ns SPARCclassic/SPARCclassic X, SPARCstation LX/ZX
501-1995   * 4/75 (SPARCstation 2) motherboard 0M FCC-B
501-1996     SBus GX framebuffer
501-2001   * 2M NVSIMM SPARCstation 10
501-2012     SPARCstation 10SX/10BSX 501-2377 w/SM40, 32M, 4M VSIMM
501-2013     SPARCstation 10SX/10BSX 501-2377 w/SM51, 32M, 4M VSIMM
501-2015     SBus fast SCSI and second Ethernet controller
501-2020     SX graphics SBus
501-2031   * 4/30 (SPARCstation LX/ZX) motherboard 32M
501-2032   * 4/30 (SPARCstation LX/ZX) motherboard 16M
501-2039     GX+ graphics accelerator SBus
501-2044   * 4/50 (SPARCstation IPX) motherboard 0M
501-2055   * 4/6xx motherboard 0M VME
501-2056     4/6xx 501-2055 w/SM41, 64M
501-2057     4/6xx 501-2055 w/SM41, 128M
501-2059     16M SIMM 60ns SPARCclassic/SPARCclassic X, SPARCstation LX/ZX
501-2060     16M SIMM x 9 80ns 30-pin 4/6xx
501-2061     1M VSIMM SPARCstation LX/ZX
501-2072     4/6xx 501-2055 w/2*SM41, 128M
501-2079   * 4/10 (SPARCclassic X) motherboard 4M
501-2196     32M SIMM 70ns SPARCserver 1000/SPARCcenter 2000
501-2197   * 1M NVSIMM SPARCserver 1000/SPARCcenter 2000
501-2200   * 4/15 (SPARCclassic) motherboard 16M
501-2208     SPARCcenter 2000 motherboard w/128M @ 8M SIMMs, 2*SM41
501-2209     SPARCcenter 2000 motherboard w/64M @ 8M SIMMs, 2*SM41
501-2218   * SM20 SPARC module Mbus 33MHz, SPARCstation 10 model 20
501-2219   * SM40 SPARC module Mbus 40MHz, SPARCstation 10
501-2221     SPARCcenter 2000 motherboard w/128M @ 8M SIMMs
501-2223     SPARCcenter 2000 motherboard w/2*SM51
501-2233   * 4/30 (SPARCstation LX/ZX) motherboard 0M
501-2237     SPARCstation 10 501-1733 (270-1733-12) w/SM30, 0M
501-2237-04  SPARCstation 10 501-2259 (270-1733-13) w/SM30, 0M, GT/ZX
501-2237-07  SPARCstation 10 501-2365 (270-1733-14) w/SM30, 0M, GT/ZX
501-2238     SPARCstation 10 501-1733 (270-1733-12) w/SM41, 0M
501-2238-03  SPARCstation 10 501-2259 (270-1733-13) w/SM41, 0M, GT/ZX
501-2238-06  SPARCstation 10 501-2365 (270-1733-14) w/SM41, 0M, GT/ZX
501-2239   * SM30 SPARC module Mbus 36MHz, SPARCstation 10
501-2241     SPARCstation 10 501-2274 w/SM20, 32M
501-2241-03  SPARCstation 10 501-2274-06 (270-1733-12) w/SM20, 32M, GT/ZX
501-2241-04  SPARCstation 10 501-2274-07 (270-1733-13) w/SM20, 32M, GT/ZX
501-2245-03  SPARCserver 1000 501-2336 w/32M @ 8M SIMMs, SM41
501-2245-04  SPARCserver 1000 501-2336 w/32M @ 8M SIMMs, SM51
501-2247-03  SPARCserver 1000 501-2336 w/64M @ 8M SIMMs, 2*SM41
501-2247-04  SPARCserver 1000 501-2336 w/64M @ 8M SIMMs, 2*SM51
501-2248-03  SPARCserver 1000 501-2336 w/128M @ 32M SIMMs, 2*SM41
501-2248-04  SPARCserver 1000 501-2336 w/128M @ 32M SIMMs, 2*SM51
501-2253     Turbo GX Plus framebuffer
501-2258   * SM41 SPARC module Mbus 40MHz, 4/6xx, SPARCstation 10
501-2259     SPARCstation 10 motherboard
501-2260     SPARCstation 10 501-2259 (270-1733-12/13) w/SM30, 32M, GT/ZX
501-2261     SPARCstation 10 501-2259 (270-1733-12/13) w/SM41, 32M, GT/ZX
501-2262   * 4/10/15 (SPARCclassic X/SPARCclassic) motherboard 0M
501-2270   * SM41 SPARC module Mbus 40MHz, 4/6xx, SPARCstation 10, SPARCserver 1000 (>= -04), SPARCcenter 2000 (>= -04)
501-2273   * 16M SIMM 70ns SPARCstation 10
501-2274     SPARCstation 10 motherboard (model 20 only)
501-2289     1M SIMM 60ns SPARCclassic X
501-2295-01  SPARCstation 10 501-1733 (270-1733-12) w/SM40, 32M or 501-2259 w/SM40, 32M, GT/ZX
501-2295-03  SPARCstation 10 501-2365 (270-1733-14) w/SM40, 32M, GT/ZX
501-2296     SPARCcenter 2000 motherboard w/64M @ 8M SIMMs, 8M NV @ 1M NVSIMMs, 2*SM41
501-2300     4/6xx 501-2055 w/2*SM41, 64M
501-2306     4M VSIMM SPARCstation 10SX/10BSX
501-2313   * 4/10 (SPARCclassic X) motherboard 8M
501-2318   * SM41 SPARC module Mbus 33MHz, SPARCcenter 2000
501-2321     SPARCcenter 2000 motherboard w/256M @ 32M SIMMs, 2*SM41
501-2322     SPARCcenter 2000 motherboard w/256M @ 32M SIMMs, 8M NV @ 1M NVSIMMs
501-2323     SPARCcenter 2000 motherboard w/512M @ 32M SIMMs, 2*SM41
501-2324     SPARCstation 20 motherboard
501-2325     Turbo GX/cg6 framebuffer/graphics accelerator SBus 13W3
501-2326   * 4/15 (SPARCclassic) motherboard 32M
501-2334   * SPARCcenter 2000 motherboard XDBus 0M
501-2336   * SPARCserver 1000 motherboard XDBus 0M
501-2338     SPARCserver 1000 motherboard ?
501-2342     8M VSIMM SPARCstation 10SX/10BSX
501-2343     SPARCstation 10SX/10BSX 501-2377 w/SM40, 32M, 8M VSIMM
501-2344     SPARCstation 10SX/10BSX 501-2377 w/SM51, 32M, 8M VSIMM
501-2345     SPARCstation 10SX/10BSX 501-2377 w/2*SM40, 32M, 4M VSIMM
501-2346     SPARCstation 10SX/10BSX 501-2377 w/2*SM51, 64M, 8M VSIMM
501-2351     SPARCstation 10 501-2365 (270-1733-14) w/SM41, 64M, GT/ZX
501-2352   * SM51 SPARC module Mbus 50MHz, 4/6xx, SPARCstation 10
501-2353   * SM51-2 SPARC module Mbus 50MHz, SPARCcenter 2000
501-2358   * SM40 SPARC module Mbus 40MHz, SPARCstation 10
501-2359   * SM41 SPARC module Mbus 40MHz, 4/6xx, SPARCstation 10, SPARCcenter 2000
501-2360   * SM51 SPARC module Mbus 50MHz, 4/6xx, SPARCstation 10, SPARCserver 1000
501-2361   * SM51 SPARC module Mbus 50MHz, 4/6xx, SPARCstation 10
501-2362   * SPARCcenter 2000 motherboard XDBus 0M
501-2365     SPARCstation 10 motherboard
501-2375     SPARCstation 10 501-2365 (270-1733-14) w/SM40, 32M, GT/ZX
501-2377   * SPARCstation 10SX/BSX motherboard 0M
501-2386     4/6xx 501-2055 w/2*SM51, 128M
501-2387   * SM51 SPARC module Mbus 50MHz, 4/6xx, SPARCstation 10, SPARCserver 1000
501-2389     SPARCstation 10 501-2365 (270-1733-14) w/SM51, 32M, GT/ZX
501-2395     audio daughterboard for SPARCstation 10SX/10BSX
501-2411     SPARCstation 10SX/10BSX 501-2377 w/2*SM51X, 32M, 8M VSIMM
501-2412   * SPARCserver 1000 system control board unprogrammed
501-2413     SPARCstation 10 501-2259 (270-1733-13) w/SM41, 0M, GT/ZX
501-2414-01  SPARCstation 10 501-2259 (270-1733-13) w/SM40, 0M, GT/ZX
501-2429     SPARCserver 1000 501-2336 w/64M @ 8M SIMMs, 2*SM41
501-2430     SPARCserver 1000 501-2336 w/512M @ 32M SIMMs, 2*SM41
501-2431   * SM52X dual SPARC module Mbus 50MHz, SPARCstation 10
501-2433     2M SIMM 60ns SPARCclassic X
501-2437     SPARCcenter 2000 motherboard w/128M @ 8M SIMMs, 2*SM51
501-2438     SPARCcenter 2000 motherboard w/64M @ 8M SIMMs, 2*SM51
501-2439     SPARCcenter 2000 motherboard w/512M @ 32M SIMMs
501-2444   * SM520 dual SPARC module Mbus 50MHz, 4/6xx
501-2445   * SM521 dual SPARC module Mbus 50MHz, 4/6xx
501-2448     SPARCcenter 2000 motherboard w/64M @ 8M SIMMs
501-2459     4/6xx 501-2055 w/2*SM52, 128M
501-2460     4M SIMM x 9 30-pin 4/6xx
501-2471     32M SIMM SPARCstation 5
501-2474   * 4/30 (SPARCstation LX/ZX) motherboard 0M
501-2475     4/6xx 501-2055 w/SM51, 64M
501-2479     16M SIMM 60ns SPARCstation 20
501-2480     64M SIMM SPARCstation 20
501-2480     64M SIMM 60ns SPARCstation 2/5
501-2482     8M video memory
501-2495   * 4/75 (SPARCstation 2) motherboard 0M (270-1926) w/SPARC POWER uP
501-2496   * 4/50 (SPARCstation IPX) motherboard 0M (270-1780) w/SPARC POWER uP
501-2504     SPARCcenter 2000 motherboard w/512M @ 32M SIMMs, 2*SM51
501-2505   * 4/75 (SPARCstation 2) motherboard 0M (270-1638) w/SPARC POWER uP
501-2506   * 4/75 (SPARCstation 2) motherboard 0M (270-1858) w/SPARC POWER uP
501-2507   * 4/50 (SPARCstation IPX) motherboard 0M (270-1959) w/SPARC POWER uP
501-2512     SPARCstation 10SX/10BSX 501-2377 w/2*SM40, 32M, 8M VSIMM
501-2528     50MHz SPARC module
501-2541     SPARCserver 1000 501-2336 w/0M, 2*SM51
501-2543     60MHz SPARC module
501-2601     50MHz SPARC module
501-2622     32M SIMM for SPARCstation 20
501-8005     color framebuffer VME
501-8006     memory board
501-8020   * 3/E mono framebuffer 1152x900 6U VME
501-8028   * 3/E single-board CPU 6U VME
501-8029   * 3/E color framebuffer cgtwo 1152x900 6U VME
501-8030   * 3/E 12M 6U VME
501-8031   * 3/E 4M 6U VME
501-8035   * 4/E (SPARCengine 1) single-board CPU VME 4M w/Weitek
501-8036   * 4/E 16M 6U VME
501-8043     mg1 framebuffer SBus DB9
501-8042   * 4/E 4M 6U VME
501-8044     cg3 framebuffer SBus
501-8058   * 4/E (SPARCengine 1) single-board CPU VME 4M w/o Weitek
501-8060   * 4/E combo memory/SBus slots (0M)
501-8064   * 4/E (SPARCengine 1) single-board CPU VME 16M w/Weitek
520-1221     IDPROM Carrera (3004) CPU 3/75/140/150/160/180
520-1295     IDPROM 3/50
520-1322     IDPROM 3/2xx
520-1412     IDPROM 3/110
520-1532     IDPROM 4/2xx
520-1559     IDPROM 3/60
520-1638     IDPROM 4/1xx
520-1811     IDPROM 386i
520-2749     NVRAM 4/20 2Kx8 CMOS
520-8049     IDPROM 3/E
523-2136     IDPROM 4/3xx
523-2113     ROM for cg8 framebuffer 3/60 P4
523-8151     NVRAM 4/E 2Kx8 CMOS
525-1023     firmware for ISP-80 IPI disk controller
525-1024     firmware for ISP-80 IPI disk controller
525-1025     firmware for ISP-80 IPI disk controller
525-1031     NVRAM 3/80 2Kx8 CMOS
525-1032     NVRAM 4/60 2Kx8 CMOS
525-1071     4/2xx boot PROM
525-1074     4/2xx boot PROM
525-1075     4/2xx boot PROM
525-1076     4/2xx boot PROM
525-1083     IDPROM 3/4xx
525-1084     NVRAM 4/40 2Kx8 CMOS
525-1100     IDPROM 4/4xx
525-1109     NVRAM 4/65 2Kx8 CMOS
525-1112     NVRAM 4/75 2Kx8 CMOS
525-1180     NVRAM 4/50 2Kx8 CMOS
525-1181     NVRAM 4/6xx 8Kx8 CMOS
525-1184     NVRAM SPARCstation 10 8Kx8 CMOS
525-1188     NVRAM 4/25 2Kx8 CMOS
525-1203     NVRAM 4/15/30 8Kx8 CMOS
525-1343     NVRAM 4/10 8Kx8 CMOS
530-1025     34-conductor ribbon cable
530-1054     2/120 internal serial cable
530-1056     null modem cable
530-1282     SCSI cable/external connector for 270-1059
530-1336     ECL mono video cable
530-1359     ECL mono video cable
530-1378     SMD disk cables
530-1379     SMD disk cables
530-1440     1.2M color video cable
530-1442     1.8M keyboard cable
530-1443     4.6M keyboard cable
530-1446     color video cable DB13W3 to 4BNC
530-1451     4/75 (SPARCstation 2) internal SCSI cable
530-1452     4/75 (SPARCstation 2) 34-conductor floppy cable
530-1453     4/75 (SPARCstation 2) DC power harness
530-1478     2M mini-DIN (type 4/5) to DB-15 (type 3) keyboard cable
530-1479     4.6M mini-DIN (type 4/5) to DB-15 (type 3) keyboard cable
530-1503     2M SCSI cable
530-1509     15" cg6 video cable
530-1594     audio cable
530-1621     386i video/keyboard cable
530-1662     1M serial port cable
530-1675     DC tray harness
530-1679     4/75 (SPARCstation 2) floppy DC power cable
530-1680     SCSI-2 to SPARCprinter parallel port cable
530-1681     power harness
530-1738     S2000 AC distribution to power supply cable
530-1741     S2000 fan DC power cable
530-1793     SCSI-2 cable
530-1814     4/75 (SPARCstation 2) memory expansion cable
530-1829     1M SCSI-2 to D50 cable
530-1836     2M SCSI-2 cable
530-1847     Sparc 10 internal SCSI cable
530-1848     Sparc 10 DC power cable
530-1870     1.2M video cable
530-1881     690 differential SCSI tray DC harness
530-1883     690 20cm external differential SCSI cable
530-1885     690 2M external differential SCSI cable
530-1886     690 12M external differential SCSI cable
530-1904     690 3M internal differential SCSI cable
540-1005     19" mono monitor 1152x900
540-1029     19" mono monitor 1152x900
540-1062     19" mono monitor (Philips M19P114A) 1152x900
540-1094     19" color monitor (Hitachi) 4BNC
540-1240     19" mono monitor (Moniterm VR1000L20) 1152x900 DB9
540-1300     RC network for 2/160 PS
540-1343     19" grayscale monitor 2BNC
540-1357     19" mono monitor (Philips) DB9
540-1358     19" mono monitor (Philips) DB9
540-1427     19" mono monitor (Motorola) 1600x1280 DB9
540-1514     19" grayscale monitor 1152x900 2BNC
540-1533     19" mono monitor (Philips)
540-1702     3/80 chassis
540-1751     fan in Sun-3 shoebox
540-1802     4/75 (SPARCstation 2) DC fan assembly
540-1813     CDC 688M SMD disk
540-1993     4/75 (SPARCstation 2) chassis with speaker
540-2005     911M 6M/sec IPI disk
540-2024     power supply
540-2191     HSI/S patch assembly
540-2220     Sparc 10 speaker box
540-2240     SunPC i486DX 25MHz SBus
555-1054   * 386i/150/250 0M XP cache
555-1200     670/690 boot PROM kit (set of four)
555-1423   * 386i/150 0M dynamic
570-1421     Network coprocessor (NC400) VME
595-1509     Sun-3 shoebox
595-1711     150M 1/4" Archive tape drive
595-2062     serial/parallel SBus
595-2249     4/75 (SPARCstation 2) boot PROM kit


   Announcement Dates/List Prices
   ------------------------------

  "SS" is SPARCstation. "SServ" is SPARCserver. "SCL" is SPARCclassic.
"SC" is SPARCcenter. "SCLU" is SPARCcluster.

Model           Year                    List Prices
                       Feb 91  Mar 91  Apr 91  Jun 92  Jul 93  Jul 94  Nov 95

3/140S          1985    $17900- =       =
3/160S                   18900
3/180S
3/260S
3/280S

3/50M           1986    $5495   =       =

3/260HM                 $30900  =       =
3/260C
3/260G
3/260S

3/160M                  $25400  =       =

3/160G                  $25400  =       =

3/160C                  $33400  =       =

3/60            1987    $9450   =       =

3/60S                   $9540   =       =
3/60M
3/60G
3/60HM
3/60FC
3/60C

3/140M                  $17200  =       =

3/160CXP                $38400  =       =

3/260CXP                $50400  =       =

4/260                   $39800  =       =

4/260C                  $50800  =       =

4/260CXP                $62300  =       =

386i/150        1988    $9490   =       =

386i/250                $11490  =       =

4/110                   $19950  =       =

4/110TC                 $31250  =       =

4/280                   $40200  =       =

4/150CXP                $44900  =       =

4/150TAAC               $74900  =       =

GXi/150         1989    $12990- =       =
                        $18490

GXi/250                 $17990- =       =
                        22490

3/80                    $5995   =       =

3/80GX                  $13995- =       =
3/80FGX                  17495

3/80TC                  $15495  =       =

3/470                   $34900  =       =

3/470GX                 $42900- =       =
                        71900

3/470S                  $45900  =       =

3/480S                  $48900  =       =

3/470GXP                $48900- =       =
                        77900

SS1                     $8995   =       =

SServ1                  $13900  =       =

SS1GX                   $14955- =       =
                        18995

SServ330                $28900  =       =       =       =

SS330                   $29900  =       =       =       =

SS330GX                 $37900  =       =       =

SS330GXP                $38900- =       =       =
SS330CXP                 39900

SS370                   $42900  =       =       =       =

SS370GX                 $50900- =       =       =
                        87900

SServ370                $53900  =       =       =       =

SS330VX                 $55900  =       =       =
SS330MVX

SS370GXP                $64900- =       =       =
SS370CXP                 65900

SServ390                $78900  =       =       =       =

SS470VX                 $86900  =       =       =
SS470MVX

SServ490                $99900  $114900 =       =       =

SS SLC          1990    $4995   =       =

SS IPC                  $7995   =       $9995   $5995   $9995?

SS IPC GX               $12495  =       =       =

SS1+                    $13900  =       =

SS2                     $14995  =       =       $14295  =

SS2GX                   $17995  =       =       $16995  =

SS2GXplus                                       $22495  =

SServ1+                 $19900  =       =

SServ2                  $24595  =       =       $15195  =

SS2GS                   $26995  =       =       $22495  =

SS2GT                   $49995  =       =       $36495  =

SS470GX                 $69900- =       =       =
SS470GXP                 125900
SS470CXP

SServ470                $59900  $89900  =       =       =

SS ELC          1991                            $3995   =

SS IPX                                          $9995   =

SServ630MP                                      $45500

SServ630MP/41                                           $47000

SServ670MP/41                                           $56000

SServ670MP                                      $60000

SServ630MP/52                                           $60500

SServ670MP/52                                           $69500

SServ690MP/41                                           $76000

SServ630MP/54                                           $78500

SServ670MP/54                                           $91500

SServ690MP                                      $92000

SServ690MP/52                                           $101500

SServ690MP/54                                           $119500

SCL             1992                                    $4295   $2995

SCL Serv                                                $5295   =

SS LX                                                   $7995   =

SS Voyager                                              $13995  $9995   $6995

SServ10/30                                                      $13995

SS3                                             $15495  =

SS10/30                                         $18495  =       =

SS10/41                                         $24995  $22745  =

SServ10/41                                              $23495

SS10/512MP                                              $33745  =

SS10/52                                         $39995  $37295

SServ600MP                                      $47000  =

SS10/54                                         $57995  $45745  =

SServ10/54                                              $47095

SC2000/2                                                $95000  =

SCL X           1993                                            $2545

SCL M                                                           $4795

SS 10SX                                                         $15495

SServ10/40                                              $16245  $15495

SS10/40                                                 $20745  $15995

SS10/30LC                                               $15995  =

SS 10GX                                                         $15995

SS 10M                                                          $17095

SS ZX                                                           $19995

SServ10/51                                              $23245  $20245

SServ10/402MP                                           $22245  =

SS10/402MP                                              $24745  $23745

SS10/51                                                 $27745  $23745

SS10TurboGXplus                                                 $22745

SS10/402MP                                                      $23745

SS10/51                                                         $23745

SS10ZX                                                          $28745

SServ10/512MP                                                   $33095

SS10/514MP                                                      $45745

SServ1000/2                                             $36700  $46700

SServ10/514MP                                                   $47095

SCLU 1                                                          $85000

SServ1000/8                                                     $131300

SC2000/8                                                        $197600

SC2000/20                                                       $1200000

SS5             1994                                            $3995-
                                                                11395

Netra i5                                                                $6149

SServ5/70                                                       $8995   =

Netra s5                                                                $10399

SServ5/85                                                               $10595

SS20/50                                                         $12195

SServ20/50                                                      $12995  =

Netra i20                                                               $13199

SS20/502                                                        $14195  =

SServ20/51                                                              $14195

SS20M                                                           $14590  =

SS20/51                                                         $15195

SS20/61                                                         $16195

SServ20/61                                                              $16195

Netra s20                                                               $18299

SServ20/502                                                             $21995

SS20/612                                                        $22495  =

SServ20/612                                                             $26995

SS20/514                                                        $29995  =

SServ1000E/2                                                            $50100

SC2000E/2                                                               $114400

SServ1000E/8                                                            $147500

SCLU 1000PDB                                                            $387025

SC2000E/20                                                              $577000

SCLU 2000PDB                                                            $693175

SS4/110         1995                                                    $4295

SS20/71                                                                 $17995

SS20/712                                                                $25295


   Author's Notes
   --------------

  I have SunOS 2.0, 2.2 (upgrade from 2.0), 3.2, 3.4 (upgrade from
3.2), 3.5, 4.0, and 4.0.3 for Sun-2's. If you have SunOS 1.x on QIC-11
(20M) cartridge tapes, I would like to get a copy. If you need boot
tapes in QIC-11 (20M) format, I can provide the version (2.x or 3.x) of
your choice for the cost of tapes and shipping. The copies of SunOS 4.x
that I have are on QIC-24 (60M) tapes. So far, I have not been able to
install 4.x on my 2/120's for various reasons; even with a ROM version
which can boot from a QIC-24 drive, something fails (boot error, no disk
formatter, miniroot won't boot, whatever).


   Bibliography/Acknowledgements
   -----------------------------

  Much of the information in CPU/CHASSIS was contributed by Al Kossow
([email protected])

  "Guy" contributed notes on SF9010/MB86900 and 4/1xx and 4/2xx FPUs

  Additional information in CPU/CHASSIS confirmed by/added from and the
cardcage configuration tables added from Sun document "Cardcage Slot
Assignments and Backplane Configuration Procedures", P/N 813-2004-10,
Revision A of 5/13/87

  Additional information in CPU/CHASSIS confirmed by and the cardage
configuration tables updated from Sun document "Cardcage Slot
Assignments and Backplane Configuration Procedures", P/N 813-2004-12,
Revision A of 6/8/88, courtesy of mlarkin

  Additional information in CPU/CHASSIS (and all infomation in the
Announcement Dates/List Prices section) confirmed by/added from Data
Sources Reports on Computer Select CD-ROMs from February 1991, March
1991, April 1991, June 1992, July 1993, and July 1994

  Information on 3/2xx CPU boards added from Sun document "Sun 501-1206
CPU Board Configuration Procedures", P/N 813-2017-05, Revision A of 10
October 1986

  Information on 3/2xx CPU boards and 501-1102 3/2xx memory boards
added from Sun document "Preliminary Installation Notes for the
Sun-3/200 Board Set", P/N 800-1618-02, Revision 02 of 8 December 1986.
The Sun document "Hardware Installation Manual for the 3/260
Workstation", P/N 800-1528-05, Revision A of 10 October 1986 contained
identical information

  Information on 501-1102 3/2xx memory boards added from Sun document
"Sun 501-1102 Memory Board Configuration Procedures", P/N 813-2018-05,
Revision A of 10 October 1986

  Information on 3/50 motherboard added from Sun document "Sun 3/50
Desktop Workstation Hardware Installation Manual", P/N 800-1355-05,
Revision A of 31 January 1986

  Information on 3/60 motherboard added from Sun document "Hardware
Installation Manual for the Sun-3/60 Workstation", P/N 800-1987-05,
Revision 50 of 14 August 1987

  Information on 2/120 CPU boards and other Multibus boards added from
Sun document "Sun-2/120 Hardware Installation Manual", Revision A of 15
April 1985

  Information on Emulex MT-02 SCSI/QIC-02 board added from Sun document
"Sun-3 Emulex MT02 Controller Configuration Procedures", P/N
813-2011-01, Revision 50 of 16 May 1986

  Information on Emulex MT-02 SCSI/QIC-02 board added from Sun document
"Installation and Service Manual for the Sun-3/180 Tape Drive Option",
P/N 813-1016-02, Revision A of 31 May 1986

  Information on video standards added from online manpages from SunOS
3.5 (sun2), 4.1.1 (sun3), and 4.1.3U1 (sun4)

  Information on SCSI and IPI disk performance added from Sun document
"Sun's SCSI Disk Drives, Performance Brief", dated August 1991

  SPEC information from the file maintained by John DiMarco, available
via anonymous ftp from ftp.cdf.toronto.edu:/pub/spectable, dated
9/12/94

  Information on SPARCstation Voyager contributed by Bob Mitton
([email protected]), Senior Product Manager for the Voyager.

  Information on 2/50 CPU boards and memory boards added from a partial
copy of Sun document "Sun-2/50 Hardware Installation Manual", P/N
800-1143-02, Revision A of 15 April 1985, courtesy of Chris Powell

  Information on 501-1054 Multibus-VME adapter added from Sun document
"User's Manual for the Sun-2 VME-Multibus Adapter Board", P/N
800-1193-01, Revision A of 1 June 1985

  Much information added from or checked against Sun document "Field
Engineer Handbook", P/N 851-1020-09, eleventh edition, 12/15/93

  Random facts contributed by or extracted from postings by:
       James W. Adams ([email protected])
       Brad Albom
       Larry Beaulieu
       Scott Bobo
       Robert Bonomi
       Gavin Brebner ([email protected])
       John Britanik ([email protected])
       David Brownlee ([email protected])
       Alain Brossard
       Rick Caldwell
       John Cheshire ([email protected])
       Gary W. Cook
       Mike Coughlin
       Chuck Cranor ([email protected])
       Alvin Cura
       Ashok Desai
       Craig Dewick ([email protected])
       Casper H. S. Dik
       Robert Dinse
       David DiGiacomo
       John DiMarco ([email protected])
       Paul Dodd ([email protected])
       Kyle Downey ([email protected])
       Toerless Eckert ([email protected])
       Winston Edmond
       Peter Eriksson
       Thaddeus P. Floryan
       Peter Frageorgia
       Curt Freeland
       Fletcher Glenn
       Jeremy A. Green
       Paul J. Grillo
       Guy Harris ([email protected])
       Andrew Harrison
       Joe Hartley
       Mark C. Henderson
       Hans Holmberg
       Syed Zaeem Hosain
       Greg Hudak
       Perry Hutchinson ([email protected])
       Matt Jacob
       Dan Kahn ([email protected])
       Malome Khomo
       Beyung Kim
       Peter Koch
       Thomas Landgraf
       Robert A. Larson ([email protected])
       Mary Lindstrom
       Jim Lyle
       Ken Mandelberg
       Jon Mandrell
       Jeff Miller
       Jim Mintha ([email protected])
       James E. Moody Jr.
       Chuck Narad ([email protected])
       Ron Nash
       Cave Newt ([email protected])
       DoN. Nichols
       John O'Connor
       Jukka Oraj{rvi ([email protected])
       Bruce Orchard ([email protected])
       Stephen Palm
       John Patrick ([email protected])
       Edward Pendzik
       Chris Powell ([email protected])
       Vaughan R. Pratt ([email protected])
       Richard Ravich
       David Robinson
       Stephen J. Roznowski
       David Rushkin
       Wolfram Schmidt ([email protected])
       Jim Seamans
       Shane Sigler
       Vik P. Solem
       Scott Statton
       Wen-King Su
       Markus Tacke
       Hugo Tafel
       Ren Tescher ([email protected])
       Michael Thompson ([email protected])
       Robert Tseng
       Wolfram Wagner
       Dave Watson
       Robert B. White
       Clarence Wilkerson
       Don Williams
       Lew Wolfgang
       Brad Young ([email protected])
       Pete A. Zaitcev
       [email protected]
       [email protected] (../Steven)
       [email protected]
       [email protected]
       [email protected]
       [email protected]

  And of course thanks to Carl Mueller, the originator of the
pseudo-FAQ for comp.sys.sun.hardware, the seed from which this reference
grew

            END OF PART VII OF THE SUN HARDWARE REFERENCE

==============================================================================