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# AMERICAN MEGATRENDS, INC.
APOLLO IV
Device Type Mainboard
Processor AM K5/AM K6/Pentium
Processor Speed 90/100/120/133/150/166/200/233MHz
Chip Set Intel
Video Chip Set None
Maximum Onboard 256MB (EDO supported)
Memory
Maximum Video None
Memory
Cache 512KB
BIOS AMI
Dimensions 254mm x 218mm
I/O Options 32-bit PCI slots (4), floppy drive interface,
green PC connector, IDE interfaces (2),
parallel port, PS/2 mouse interface, serial
ports (2), IR connector, USB connectors (2)
NPU Options None
IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| Power LED & | C1 | Serial port 1 | CN4 |
| keylock | | | |
|-------------------+----------+------------------+----------|
| Turbo LED | C2 | IDE interface 2 | CN5 |
|-------------------+----------+------------------+----------|
| Green PC | C3 | IDE interface 1 | CN6 |
| connector | | | |
|-------------------+----------+------------------+----------|
| Green PC LED | C4 | CPU fan power | CPU |
|-------------------+----------+------------------+----------|
| Speaker | C5 | Chassis fan | FAN |
| | | power | |
|-------------------+----------+------------------+----------|
| IDE interface LED | C6 | IR connector | IR1 |
|-------------------+----------+------------------+----------|
| Remote power | C7 | 32-bit PCI slots | PC1 – |
| switch | | | PC4 |
|-------------------+----------+------------------+----------|
| Reset switch | C8 | PS/2 mouse | PS2 |
| | | interface | |
|-------------------+----------+------------------+----------|
| Parallel port | CN1 | Soft off power | RPW |
| | | supply | |
|-------------------+----------+------------------+----------|
| Floppy drive | CN2 | USB connector 1 | USB1 |
| interface | | | |
|-------------------+----------+------------------+----------|
| Serial port 2 | CN3 | USB connector 2 | USB2 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|---------------------------------------+-------+------------|
| » | CMOS memory normal operation | CPW | Open |
|---+-----------------------------------+-------+------------|
| | CMOS memory clear | CPW | Closed |
|---+-----------------------------------+-------+------------|
| » | Power supply type select AT | PWR1 | Pins 1 & 2 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| | Power supply type select remote | PWR1 | Pins 2 & 3 |
| | power | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SIMM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|------------------+--------------------+--------------------|
| 8MB | (2) 1M x 36 | None |
|------------------+--------------------+--------------------|
| 16MB | (2) 2M x 36 | None |
|------------------+--------------------+--------------------|
| 16MB | (2) 1M x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 24MB | (2) 2M x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 32MB | (2) 4M x 36 | None |
|------------------+--------------------+--------------------|
| 32MB | (2) 2M x 36 | (2) 2M x 36 |
|------------------+--------------------+--------------------|
| 40MB | (2) 4M x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 48MB | (2) 4M x 36 | (2) 2M x 36 |
|------------------+--------------------+--------------------|
| 64MB | (2) 8M x 36 | None |
|------------------+--------------------+--------------------|
| 64MB | (2) 4M x 36 | (2) 4M x 36 |
|------------------+--------------------+--------------------|
| 72MB | (2) 8M x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 80MB | (2) 8M x 36 | (2) 2M x 36 |
|------------------+--------------------+--------------------|
| 96MB | (2) 8M x 36 | (2) 4M x 36 |
|------------------+--------------------+--------------------|
| 128MB | (2) 8M x 36 | (2) 8M x 36 |
|------------------+--------------------+--------------------|
| 128MB | (2) 16M x 36 | None |
|------------------+--------------------+--------------------|
| 136MB | (2) 16M x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 144MB | (2) 16M x 36 | (2) 2M x 36 |
|------------------+--------------------+--------------------|
| 160MB | (2) 16M x 36 | (2) 4M x 36 |
|------------------+--------------------+--------------------|
| 192MB | (2) 16M x 36 | (2) 8M x 36 |
|------------------+--------------------+--------------------|
| 256MB | (2) 16M x 36 | (2) 16M x 36 |
|------------------------------------------------------------|
| Note: Board accepts EDO memory. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIMM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 2 | Bank 3 |
|------------------+--------------------+--------------------|
| 8MB | (1) 1M x 64 | None |
|------------------+--------------------+--------------------|
| 16MB | (1) 2M x 64 | None |
|------------------+--------------------+--------------------|
| 16MB | (1) 1M x 64 | (1) 1M x 64 |
|------------------+--------------------+--------------------|
| 24MB | (1) 2M x 64 | (1) 1M x 64 |
|------------------+--------------------+--------------------|
| 32MB | (1) 4M x 64 | None |
|------------------+--------------------+--------------------|
| 32MB | (1) 2M x 64 | (1) 2M x 64 |
|------------------+--------------------+--------------------|
| 40MB | (1) 4M x 64 | (1) 1M x 64 |
|------------------+--------------------+--------------------|
| 48MB | (1) 4M x 64 | (1) 2M x 64 |
|------------------+--------------------+--------------------|
| 64MB | (1) 8M x 64 | None |
|------------------+--------------------+--------------------|
| 64MB | (1) 4M x 64 | (1) 4M x 64 |
|------------------+--------------------+--------------------|
| 72MB | (1) 8M x 64 | (1) 1M x 64 |
|------------------+--------------------+--------------------|
| 80MB | (1) 8M x 64 | (1) 2M x 64 |
|------------------+--------------------+--------------------|
| 96MB | (1) 8M x 64 | (1) 4M x 64 |
|------------------+--------------------+--------------------|
| 128MB | (1) 16M x 64 | None |
|------------------+--------------------+--------------------|
| 128MB | (1) 8M x 64 | (1) 8M x 64 |
|------------------+--------------------+--------------------|
| 136MB | (1) 16M x 64 | (1) 1M x 64 |
|------------------+--------------------+--------------------|
| 144MB | (1) 16M x 64 | (1) 2M x 64 |
|------------------+--------------------+--------------------|
| 160MB | (1) 16M x 64 | (1) 4M x 64 |
|------------------+--------------------+--------------------|
| 192MB | (1) 16M x 64 | (1) 8M x 64 |
|------------------+--------------------+--------------------|
| 256MB | (1) 16M x 64 | (1) 16M x 64 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 |
|----------------------------+-------------------------------|
| 512KB | (2) 64K x 32 |
|------------------------------------------------------------|
| Note: The size of the TAG is unidentified. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (AM K5, IMI 652) |
|------------------------------------------------------------|
| CPU |Clock |Multiplier|CLK1 |CLK2 |CLK3|FREQ1|FREQ2|FREQ3|
| speed |speed | | | | | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
| 90MHz |60MHz | 1.5x |2 & 3|1 & 2|2 & |1 & 2|1 & 2|1 & 2|
| | | | | | 3 | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|100MHz |66MHz | 1.5x |1 & 2|1 & 2|2 & |1 & 2|1 & 2|1 & 2|
| | | | | | 3 | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|120MHz |60MHz | 1.5x |2 & 3|1 & 2|2 & |1 & 2|1 & 2|1 & 2|
| | | | | | 3 | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|133MHz |66MHz | 1.5x |2 & 3|1 & 2|2 & |1 & 2|1 & 2|1 & 2|
| | | | | | 3 | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|150MHz |60MHz | 1.75x |2 & 3|1 & 2|2 & |2 & 3|2 & 3|1 & 2|
| | | | | | 3 | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|166MHz |66MHz | 1.75x |1 & 2|1 & 2|2 & |2 & 3|2 & 3|1 & 2|
| | | | | | 3 | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|200MHz |66MHz | 2x |1 & 2|1 & 2|2 & |1 & 2|2 & 3|1 & 2|
| | | | | | 3 | | | |
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (AM K5, OCS 9147) |
|------------------------------------------------------------|
| CPU |Clock |Multiplier|CLK1 |CLK2 |CLK3|FREQ1|FREQ2|FREQ3|
| speed |speed | | | | | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
| 90MHz |60MHz | 1.5x |2 & 3|2 & 3|2 & |1 & 2|1 & 2|1 & 2|
| | | | | | 3 | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|100MHz |66MHz | 1.5x |1 & 2|2 & 3|2 & |1 & 2|1 & 2|1 & 2|
| | | | | | 3 | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|120MHz |60MHz | 1.5x |2 & 3|2 & 3|2 & |1 & 2|1 & 2|1 & 2|
| | | | | | 3 | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|133MHz |66MHz | 1.5x |1 & 2|2 & 3|2 & |1 & 2|1 & 2|1 & 2|
| | | | | | 3 | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|150MHz |60MHz | 1.75x |2 & 3|2 & 3|2 & |2 & 3|2 & 3|1 & 2|
| | | | | | 3 | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|166MHz |66MHz | 1.75x |1 & 2|2 & 3|2 & |2 & 3|2 & 3|1 & 2|
| | | | | | 3 | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|200MHz |66MHz | 2x |1 & 2|2 & 3|2 & |1 & 2|2 & 3|1 & 2|
| | | | | | 3 | | | |
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (AM K6, IMI 652) |
|------------------------------------------------------------|
| CPU |Clock |Multiplier|CLK1 |CLK2 |CLK3|FREQ1|FREQ2|FREQ3|
| speed |speed | | | | | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|166MHz |66MHz | 2.5x |1 & 2|1 & 2|2 & |2 & 3|2 & 3|1 & 2|
| | | | | | 3 | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|200MHz |66MHz | 3x |1 & 2|1 & 2|2 & |1 & 2|2 & 3|1 & 2|
| | | | | | 3 | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|233MHz |66MHz | 3.5x |1 & 2|1 & 2|2 & |1 & 2|1 & 2|1 & 2|
| | | | | | 3 | | | |
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (AM K6, OCS 9147) |
|------------------------------------------------------------|
| CPU |Clock |Multiplier|CLK1 |CLK2 |CLK3|FREQ1|FREQ2|FREQ3|
| speed |speed | | | | | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|166MHz |66MHz | 2.5x |1 & 2|2 & 3|2 & |2 & 3|2 & 3|1 & 2|
| | | | | | 3 | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|200MHz |66MHz | 3x |1 & 2|2 & 3|2 & |1 & 2|2 & 3|1 & 2|
| | | | | | 3 | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|233MHz |66MHz | 3.5x |1 & 2|2 & 3|2 & |1 & 2|1 & 2|1 & 2|
| | | | | | 3 | | | |
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (INTEL, IMI 652) |
|------------------------------------------------------------|
| CPU |Clock |Multiplier|CLK1 |CLK2 |CLK3|FREQ1|FREQ2|FREQ3|
| speed |speed | | | | | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
| 90MHz |60MHz | 1.5x |1 & 2|1 & 2|2 & |1 & 2|1 & 2|1 & 2|
| | | | | | 3 | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|100MHz |66MHz | 1.5x |1 & 2|1 & 2|2 & |1 & 2|1 & 2|1 & 2|
| | | | | | 3 | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|120MHz |60MHz | 2x |2 & 3|1 & 2|2 & |2 & 3|1 & 2|1 & 2|
| | | | | | 3 | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|133MHz |66MHz | 2x |1 & 2|1 & 2|2 & |2 & 3|1 & 2|1 & 2|
| | | | | | 3 | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|150MHz |60MHz | 2.5x |2 & 3|1 & 2|2 & |2 & 3|2 & 3|1 & 2|
| | | | | | 3 | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|166MHz |66MHz | 2.5x |1 & 2|1 & 2|2 & |2 & 3|2 & 3|1 & 2|
| | | | | | 3 | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|200MHz |66MHz | 3x |1 & 2|1 & 2|2 & |1 & 2|2 & 3|1 & 2|
| | | | | | 3 | | | |
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (INTEL, OCS 9147) |
|------------------------------------------------------------|
| CPU |Clock |Multiplier|CLK1 |CLK2 |CLK3|FREQ1|FREQ2|FREQ3|
| speed |speed | | | | | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
| 90MHz |60MHz | 1.5x |2 & 3|2 & 3|2 & |1 & 2|1 & 2|1 & 2|
| | | | | | 3 | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|100MHz |66MHz | 1.5x |1 & 2|2 & 3|2 & |1 & 2|1 & 2|1 & 2|
| | | | | | 3 | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|120MHz |60MHz | 2x |2 & 3|2 & 3|2 & |2 & 3|1 & 2|1 & 2|
| | | | | | 3 | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|133MHz |66MHz | 2x |1 & 2|2 & 3|2 & |2 & 3|1 & 2|1 & 2|
| | | | | | 3 | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|150MHz |60MHz | 2.5x |2 & 3|2 & 3|2 & |2 & 3|2 & 3|1 & 2|
| | | | | | 3 | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|166MHz |66MHz | 2.5x |1 & 2|2 & 3|2 & |2 & 3|2 & 3|1 & 2|
| | | | | | 3 | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|200MHz |66MHz | 3x |1 & 2|2 & 3|2 & |1 & 2|2 & 3|1 & 2|
| | | | | | 3 | | | |
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (INTEL MMX, IMI 652) |
|------------------------------------------------------------|
| CPU |Clock |Multiplier|CLK1 |CLK2 |CLK3|FREQ1|FREQ2|FREQ3|
| speed |speed | | | | | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|166MHz |66MHz | 2.5x |1 & 2|1 & 2|2 & |2 & 3|2 & 3|1 & 2|
| | | | | | 3 | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|200MHz |66MHz | 3x |1 & 2|1 & 2|2 & |1 & 2|2 & 3|1 & 2|
| | | | | | 3 | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|233MHz |66MHz | 3.5x |1 & 2|1 & 2|2 & |1 & 2|1 & 2|1 & 2|
| | | | | | 3 | | | |
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (INTEL MMX, OCS 9147) |
|------------------------------------------------------------|
| CPU |Clock |Multiplier|CLK1 |CLK2 |CLK3|FREQ1|FREQ2|FREQ3|
| speed |speed | | | | | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|166MHz |66MHz | 2.5x |1 & 2|2 & 3|2 & |2 & 3|2 & 3|1 & 2|
| | | | | | 3 | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|200MHz |66MHz | 3x |1 & 2|2 & 3|2 & |1 & 2|2 & 3|1 & 2|
| | | | | | 3 | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|233MHz |66MHz | 3.5x |1 & 2|2 & 3|2 & |1 & 2|1 & 2|1 & 2|
| | | | | | 3 | | | |
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE SELECTION (SINGLE) |
|------------------------------------------------------------|
| Voltage | VR1 |
|----------------------------+-------------------------------|
| 3.3v | Pins 3 & 4 closed |
|----------------------------+-------------------------------|
| 3.5v | Pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE SELECTION (DUAL) |
|------------------------------------------------------------|
| Voltage | V core | VR1 |
|--------------------+------------------+--------------------|
| 3.3v | 2.8v | Pins 9 & 10 closed |
|--------------------+------------------+--------------------|
| 3.3v | 2.9v | Pins 7 & 8 closed |
|--------------------+------------------+--------------------|
| 3.3v | 3.2v | Pins 5 & 6 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| FLASH BIOS SELECTION |
|------------------------------------------------------------|
| Type | EP1 | EP2 |
|------------------+--------------------+--------------------|
| AMD 28F020 | Pins 1 & 2 closed | Pins 2 & 3 closed |
|------------------+--------------------+--------------------|
| ATMEL AT29C020 | Open | Pins 2 & 3 closed |
|------------------+--------------------+--------------------|
| Intel 28F001 | Pins 2 & 3 closed | Pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| MXIC MX28F200 | Pins 2 & 3 closed | Pins 2 & 3 closed |
|------------------+--------------------+--------------------|
| SST 29EE010 | Open | Pins 2 & 3 closed |
|------------------+--------------------+--------------------|
| SST 29EE020 | Open | Pins 2 & 3 closed |
+------------------------------------------------------------+
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