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# ASUS COMPUTER INTERNATIONAL
VL/I-486SV2G, VL/I-486SV2GX4 (REV. 1.1)
Processor 80486SX/SL80486SX/80487SX/CX486S/CX486DX/80486DX/SL80486DX/ …
…
SLODP486/ODP486SX/CX486DX2/80486DX2/80486DX4/Pentium Overdrive …
Processor 20/25/33/40/50(internal)/50/66(internal)/75(internal)/82.5(internal)…
Speed 99(internal)/100(internal)MHz …
Chip Set SIS …
Max. 64MB …
Onboard
DRAM
Cache 128/256/512/1024KB …
BIOS Award …
Dimensions 220mm x 220mm …
I/O 32-bit VESA local bus slots (2), PS/2 mouse port, green PC …
Options
NPU None …
Options
IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|------------------+----------+-------------------+----------|
| External battery | BCON1 | Green PC 1 | JP2 |
|------------------+----------+-------------------+----------|
| Turbo switch | CN1 | Green PC 2 | JP3 |
|------------------+----------+-------------------+----------|
| Turbo LED | CN2 | Green PC 3 | JP4 |
|------------------+----------+-------------------+----------|
| Reset switch | CN3 | Suspend power | JP28 |
| | | management | |
|------------------+----------+-------------------+----------|
| Speaker | CN4 | 32-bit VESA local | S1 |
| | | bus slot | |
|------------------+----------+-------------------+----------|
| Power LED & | CN5 | 32-bit VESA local | S2 |
| keylock | | bus slot | |
|------------------+----------+-------------------+----------|
| PS/2 mouse | CN6 | | |
| connector | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+--------+------------|
| » | Battery type select (Internal) | JP1 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | Battery type select (External) | JP1 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | IRQ12 enabled | JP7 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | IRQ12 disabled | JP7 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JP8 | N/A |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | Monitor type select CGA | JP9 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | Monitor type select monochrome | JP9 | pins 1 & 2 |
| | or VGA | | closed |
|---+----------------------------------+--------+------------|
| » | Hardware SMI switch enabled | JP10 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | RC control enabled | JP10 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | CPU manufacturer select type | JP11 | pins 2 & 3 |
| | Intel | | closed |
|---+----------------------------------+--------+------------|
| | CPU manufacturer select type | JP11 | pins 1 & 2 |
| | Cyrix | | closed |
|---+----------------------------------+--------+------------|
| » | Delay VESA clock | JP24 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | No Delay VESA clock | JP24 | pins 2 & 3 |
| | | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|------+-------------+-------------+------------+------------|
| 1MB | (1) 1M x 36 | NONE | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 2MB | (1) 1M x 36 | (1) 1M x 36 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 2MB | (1) 2M x 36 | NONE | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 4MB | (1) 4M x 36 | NONE | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 5MB | (1) 1M x 36 | (1) 4M x 36 | (1) 4M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 6MB | (1) 1M x 36 | (1) 1M x 36 | (1) 4M x | (1) 4M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 6MB | (1) 2M x 36 | NONE | (1) 4M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 8MB | (1) 4M x 36 | (1) 4M x 36 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 10MB | (1) 1M x 36 | (1) 1M x 36 | (1) 4M x | (1) 4M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 10MB | (1) 1M x 36 | (1) 1M x 36 | (1) 8M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 10MB | (1) 2M x 36 | NONE | (1) 4M x | (1) 4M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 10MB | (1) 2M x 36 | NONE | (1) 8M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 12MB | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 12MB | (1) 8M x 36 | NONE | (1) 4M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 16MB | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x | (1) 4M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 16MB | (1) 4M x 36 | (1) 4M x 36 | (1) 8M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 16MB | (1) 8M x 36 | NONE | (1) 8M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 16MB | (1) 8M x 36 | NONE | (1) 4M x | (1) 4M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 16MB | (1) 16M x | NONE | NONE | NONE |
| | 36 | | | |
|------+-------------+-------------+------------+------------|
| 17MB | (1) 1M x 36 | (1) 16M x | NONE | NONE |
| | | 36 | | |
|------+-------------+-------------+------------+------------|
| 18MB | (1) 1M x 36 | (1) 1M x 36 | (1) 16M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 18MB | (1) 2M x 36 | NONE | (1) 16M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 20MB | (1) 4M x 36 | (1) 16M x | NONE | NONE |
| | | 36 | | |
|------+-------------+-------------+------------+------------|
| 24MB | (1) 4M x 36 | (1) 4M x 36 | (1) 16M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 24MB | (1) 8M x 36 | NONE | (1) 16M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 32MB | (1) 16M x | (1) 16M x | NONE | NONE |
| | 36 | 36 | | |
|------+-------------+-------------+------------+------------|
| 32MB | (1) 32M x | NONE | NONE | NONE |
| | 36 | | | |
|------+-------------+-------------+------------+------------|
| 36MB | (1) 4M x 36 | (1) 16M x | (1) 16M x | NONE |
| | | 36 | 36 | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION (CONT.) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|------+-------------+-------------+------------+------------|
| 40MB | (1) 4M x 36 | (1) 4M x 36 | (1) 16M x | (1) 16M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 40MB | (1) 4M x 36 | (1) 4M x 36 | (1) 32M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 40MB | (1) 8M x 36 | NONE | (1) 16M x | (1) 16M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 40MB | (1) 8M x 36 | NONE | (1) 32M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 40MB | (1) 16M x | (1) 16M x | (1) 16M x | NONE |
| | 36 | 36 | 36 | |
|------+-------------+-------------+------------+------------|
| 64MB | (1) 16M x | (1) 16M x | (1) 16M x | (1) 16M x |
| | 36 | 36 | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 64MB | (1) 16M x | (1) 16M x | (1) 32M x | NONE |
| | 36 | 36 | 36 | |
|------+-------------+-------------+------------+------------|
| 64MB | (1) 32M x | NONE | (1) 32M x | NONE |
| | 36 | | 36 | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | TAG |
|--------+---------------------+--------------+--------------|
| 128KB | (4) 32K x 8 | NONE | (1) 8K x 8 |
|--------+---------------------+--------------+--------------|
| 256KB | (4) 32K x 8/(4) 64K | (4) 32K x | (1) 32K x 8 |
| | x 8 | 8/NONE | |
|--------+---------------------+--------------+--------------|
| 512KB | (4) 64K x 8/(4) | (4) 64K x | (1) 32K x 8 |
| | 128K x 8 | 8/NONE | |
|--------+---------------------+--------------+--------------|
| 1024KB | (4) 128K x 8 | (4) 128K x 8 | (1) 128K x 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JP13 | JP14 | JP25 |
|---------------+------------------+------------+------------|
| 128KB | Open | pins 2 & 3 | pins 1 & 2 |
| | | closed | closed |
|---------------+------------------+------------+------------|
| 256KB (32K x | Open | pins 1 & 2 | pins 1 & 2 |
| 8) | | closed | closed |
|---------------+------------------+------------+------------|
| 256KB (64K x | pins 1 & 2 | pins 2 & 3 | pins 1 & 2 |
| 8) | closed | closed | closed |
|---------------+------------------+------------+------------|
| 512KB (64K x | pins 5 & 6 | pins 1 & 2 | pins 2 & 3 |
| 8) | closed | closed | closed |
|---------------+------------------+------------+------------|
| 512KB (128K x | pins 1 & 2 | pins 2 & 3 | pins 2 & 3 |
| 8) | closed | closed | closed |
|---------------+------------------+------------+------------|
| 1024KB | pins 2 & 3 | pins 1 & 2 | pins 2 & 3 |
| | closed | closed | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | JP16 | JP17 | JP18 | JP19 | JP20 |
|-----------+----------+--------+---------+---------+--------|
| 80486SX | Open | Open | Open | pins 2 | pins 2 |
| | | | | & 3 | & 3 |
|-----------+----------+--------+---------+---------+--------|
| SL486SX | 3 & 4 | Open | pins 4 | pins 2 | pins 2 |
| | and 5 & | | & 5 | & 3 | & 3 |
| | 6 | | | | |
|-----------+----------+--------+---------+---------+--------|
| 80487SX | Open | Open | Open | pins 1 | pins 2 |
| | | | | & 2 | & 3 |
|-----------+----------+--------+---------+---------+--------|
| CX486S | 2 & 3 | pins 1 | 1 & 2 | pins 2 | pins 2 |
| | and 4 & | & 2 | and 3 & | & 3 | & 3 |
| | 5 | | 4 | | |
|-----------+----------+--------+---------+---------+--------|
| CX486DX | 2 & 3 | pins 1 | 1 & 2 | pins 1 | pins 2 |
| | and 4 & | & 2 | and 3 & | & 2 | & 3 |
| | 5 | | 4 | | |
|-----------+----------+--------+---------+---------+--------|
| 80486DX | Open | Open | Open | pins 1 | pins 2 |
| | | | | & 2 | & 3 |
|-----------+----------+--------+---------+---------+--------|
| SL486DX | 3 & 4 | Open | pins 4 | pins 1 | pins 2 |
| | and 5 & | | & 5 | & 2 | & 3 |
| | 6 | | | | |
|-----------+----------+--------+---------+---------+--------|
| SLODP486 | pins 5 & | Open | pins 4 | pins 1 | pins 2 |
| | 6 | | & 5 | & 2 | & 3 |
|-----------+----------+--------+---------+---------+--------|
| ODP486SX | Open | Open | Open | pins 1 | pins 2 |
| | | | | & 2 | & 3 |
|-----------+----------+--------+---------+---------+--------|
| CX486DX2 | 2 & 3 | pins 1 | 1 & 2 | 1 & 2 | pins 2 |
| | and 4 & | & 2 | and 3 & | and 4 & | & 3 |
| | 5 | | 4 | 5 | |
|-----------+----------+--------+---------+---------+--------|
| 80486DX2 | Open | Open | Open | pins 1 | pins 2 |
| | | | | & 2 | & 3 |
|-----------+----------+--------+---------+---------+--------|
| SL486DX2 | 3 & 4 | Open | pins 4 | pins 1 | pins 2 |
| | and 5 & | | & 5 | & 2 | & 3 |
| | 6 | | | | |
|-----------+----------+--------+---------+---------+--------|
| 80486DX4 | 3 & 4 | pins 5 | pins 4 | pins 1 | pins 2 |
| (2 x) | and 5 & | & 6 | & 5 | & 2 | & 3 |
| | 6 | | | | |
|-----------+----------+--------+---------+---------+--------|
| 80486DX4 | 3 & 4 | pins 4 | pins 4 | pins 1 | pins 2 |
| (2.5 x) | and 5 & | & 5 | & 5 | & 2 | & 3 |
| | 6 | | | | |
|-----------+----------+--------+---------+---------+--------|
| 80486DX4 | 3 & 4 | Open | pins 4 | pins 1 | pins 2 |
| (3 x) | and 5 & | | & 5 | & 2 | & 3 |
| | 6 | | | | |
|-----------+----------+--------+---------+---------+--------|
| Pentium | pins 5 & | Open | pins 4 | pins 1 | pins 1 |
| Overdrive | 6 | | & 5 | & 2 | & 2 |
|------------------------------------------------------------|
| Note:Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| HARDWARE TRAP CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | JP5 | JP6 |
|--------------------+-------------------+-------------------|
| 80486SX | pins 1 & 2 closed | pins 2 & 3 closed |
|--------------------+-------------------+-------------------|
| CX486S | pins 2 & 3 closed | pins 1 & 2 closed |
|--------------------+-------------------+-------------------|
| CX486DX | pins 2 & 3 closed | pins 1 & 2 closed |
|--------------------+-------------------+-------------------|
| 80486DX | pins 1 & 2 closed | pins 2 & 3 closed |
|--------------------+-------------------+-------------------|
| SL486SX | pins 1 & 2 closed | pins 2 & 3 closed |
|--------------------+-------------------+-------------------|
| SL486DX | pins 1 & 2 closed | pins 2 & 3 closed |
|--------------------+-------------------+-------------------|
| 80486DX2 | pins 1 & 2 closed | pins 2 & 3 closed |
|--------------------+-------------------+-------------------|
| SL486DX2 | pins 1 & 2 closed | pins 2 & 3 closed |
|--------------------+-------------------+-------------------|
| SL486DX4 | pins 1 & 2 closed | pins 2 & 3 closed |
|--------------------+-------------------+-------------------|
| Pentium Overdrive | pins 1 & 2 closed | pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION |
|------------------------------------------------------------|
| Speed | JP21 | JP22 | JP23 |
|---------------+------------------+------------+------------|
| 20MHz | pins 1 & 2 | pins 1 & 2 | pins 1 & 2 |
| | closed | closed | closed |
|---------------+------------------+------------+------------|
| 25MHz | pins 2 & 3 | pins 1 & 2 | pins 1 & 2 |
| | closed | closed | closed |
|---------------+------------------+------------+------------|
| 33MHz | pins 2 & 3 | pins 2 & 3 | pins 2 & 3 |
| | closed | closed | closed |
|---------------+------------------+------------+------------|
| 40MHz | pins 2 & 3 | pins 2 & 3 | pins 1 & 2 |
| | closed | closed | closed |
|---------------+------------------+------------+------------|
| 50i MHz | pins 2 & 3 | pins 1 & 2 | pins 1 & 2 |
| | closed | closed | closed |
|---------------+------------------+------------+------------|
| 50MHz | pins 1 & 2 | pins 1 & 2 | pins 2 & 3 |
| | closed | closed | closed |
|---------------+------------------+------------+------------|
| 66i MHz | pins 2 & 3 | pins 2 & 3 | pins 2 & 3 |
| | closed | closed | closed |
|---------------+------------------+------------+------------|
| 75i MHz (3x) | pins 2 & 3 | pins 1 & 2 | pins 1 & 2 |
| | closed | closed | closed |
|---------------+------------------+------------+------------|
| 82.5i MHz | pins 2 & 3 | pins 2 & 3 | pins 2 & 3 |
| (2.5x) | closed | closed | closed |
|---------------+------------------+------------+------------|
| 99i MHz (3x) | pins 2 & 3 | pins 2 & 3 | pins 2 & 3 |
| | closed | closed | closed |
|---------------+------------------+------------+------------|
| 100i MHz (2x) | pins 1 & 2 | pins 1 & 2 | pins 2 & 3 |
| | closed | closed | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VESA WAIT STATE/BUS SPEED CONFIGURATION |
|------------------------------------------------------------|
| CPU speed | Wait states | JP26 | JP27 |
|-----------+---------------+-------------------+------------|
| <=33MHz | 0 wait states | pins 1 & 2 closed | pins 1 & 2 |
| | | | closed |
|-----------+---------------+-------------------+------------|
| >33MHz | 1 wait state | pins 2 & 3 closed | pins 2 & 3 |
| | | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE SELECTION |
|------------------------------------------------------------|
| Function | JP12 | JP15 |
|------------------+--------------------+--------------------|
| 3.3V (DX4) | pins 2 & 3 closed | pins 2 & 3 closed |
|------------------+--------------------+--------------------|
| 5V | pins 1 & 2 closed | pins 1 & 2 closed |
+------------------------------------------------------------+
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