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# ACHME COMPUTER, INC.
MS-4132G VLB 486 SI3G
Processor 80486SX/80487SX/80486SX-SL/80486DX/80486DX-SL
Processor Speed 25/33/40/50MHz
Chip Set SIS
Max. Onboard 32MB
DRAM
Cache 128/256KB
BIOS Phoenix
Dimensions 254mm x 218mm
I/O Options 32-Bit VESA local bus slots (3)
NPU Options None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|---------------------+----------+----------------+----------|
| Internal keyboard | CN1 | Power saving | JG3 |
| connector | | switch | |
|---------------------+----------+----------------+----------|
| External battery | JB | 32-Bit VESA | S1 |
| | | local bus slot | |
|---------------------+----------+----------------+----------|
| Green Function | JC7 | 32-Bit VESA | S2 |
| | | local bus slot | |
|---------------------+----------+----------------+----------|
| Monitor power | JG1 | 32-Bit VESA | S3 |
| control | | local bus slot | |
|---------------------+----------+----------------+----------|
| Green PC LED | JG2 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PIN OUT CONFIGURATION |
|------------------------------------------------------------|
| Connector | JFP |
|----------------------------+-------------------------------|
| Keylock | pins 1 & 2 closed |
|----------------------------+-------------------------------|
| Power LED | pins 3 & 5 closed |
|----------------------------+-------------------------------|
| Turbo LED | pins 12 & 13 closed |
|----------------------------+-------------------------------|
| Turbo switch | pins 15, 16, & 17 closed |
|----------------------------+-------------------------------|
| Reset | pins 19 & 20 closed |
|----------------------------+-------------------------------|
| Speaker | pins 7, 8, 9, & 10 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+--------+------------|
| » | CPU PQFP not installed | JC1 | Closed |
|---+----------------------------------+--------+------------|
| | CPU PQFP installed | JC1 | Open |
|---+----------------------------------+--------+------------|
| » | Monitor type select monochrome | JP1 | Open |
|---+----------------------------------+--------+------------|
| | Monitor type select color | JP1 | Closed |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JP4A | pins 1 & 2 |
| | alter | | closed |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JP16 | N/A |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | Normal VL-bus card installed | JP23 | Open |
|---+----------------------------------+--------+------------|
| | Special VL-bus card installed | JP23 | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | TAG |
|------------+---------------+---------------+---------------|
| 128KB | (4) 32K x 8 | NONE | (1) 8K x 8 |
|------------+---------------+---------------+---------------|
| 256KB | (4) 32K x 8 | (4) 32K x 8 | (1) 32K x 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JS1 | JS2 |
|------------------+--------------------+--------------------|
| 128KB | pins 1 & 2 closed | pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| 256KB | pins 2 & 3 closed | pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | JC2 | JC3 | JC4 | JC5 | JC6 | JC8 | JC9 |
|----------+------+-------+------+------+------+------+------|
| 80486SX | Open |pins 2 | N/A | N/A | Open |Closed|Closed|
| | | & 3 | | | | | |
|----------+------+-------+------+------+------+------+------|
|80486SX-SL|pins 2|pins 2 |pins 1|pins 1| Open |Closed|Closed|
| | & 3 | & 3 | & 2 | & 2 | | | |
|----------+------+-------+------+------+------+------+------|
| 80487SX | Open |1 & 2, | N/A | N/A |pins 1| Open | Open |
| | | 3 & 4 | | | & 2 | | |
|----------+------+-------+------+------+------+------+------|
| 80486DX | Open |1 & 2, | N/A | N/A |pins 2| Open | Open |
| | | 3 & 4 | | | & 3 | | |
|----------+------+-------+------+------+------+------+------|
|80486DX-SL|pins 2|1 & 2, |pins 1|pins 1|pins 2|Closed|Closed|
| | & 3 | 3 & 4 | & 2 | & 2 | & 3 | | |
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VESA WAIT STATE/BUS SPEED CONFIGURATION |
|------------------------------------------------------------|
| Speed | Wait states | JP8 | JP9 |
|---------------+---------------+--------------+-------------|
| < 33MHz | 0 wait states | Open | Open |
|---------------+---------------+--------------+-------------|
| >33MHz | 1 wait state | Closed | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION |
|------------------------------------------------------------|
| Speed | JK1 | JK2 | JK3 | JK4 |
|---------+----------+---------+---------+-------------------|
| 25MHz | Open | Open | Closed | pins 2 & 3 closed |
|---------+----------+---------+---------+-------------------|
| 33MHz | Closed | Open | Open | pins 2 & 3 closed |
|---------+----------+---------+---------+-------------------|
| 40MHz | Closed | Closed | Open | pins 2 & 3 closed |
|---------+----------+---------+---------+-------------------|
| 50MHz | Open | Closed | Open | pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM BANK AND JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | JM1 | JM2 | JM3 |
|------+---------------+----------+--------+-----+-----+-----|
| 4MB | (1) 256KB x | (1) | NONE | 1 & | N/A | N/A |
| | 36 DS | 512KB x | | 2 | | |
| | | 36 | | | | |
|------+---------------+----------+--------+-----+-----+-----|
| 4MB | (1) 256K x 36 | (1) | (4) | 1 & | 4 & | 1 & |
| | | 512KB x | 256K x | 2 | 5 | 2 |
| | | 36 | 9 | | | |
|------+---------------+----------+--------+-----+-----+-----|
| 4MB | (1) 512KB x | (1) | NONE | 2 & | N/A | N/A |
| | 36 | 512KB x | | 3 | | |
| | | 36 | | | | |
|------+---------------+----------+--------+-----+-----+-----|
| 4MB | (1) 1M x 36 | NONE | NONE | N/A | N/A | N/A |
|------+---------------+----------+--------+-----+-----+-----|
| 4MB | NONE | NONE | (4) 1M | N/A | N/A | 2 & |
| | | | x 9 | | | 3 |
|------+---------------+----------+--------+-----+-----+-----|
| 8MB | (1) 256KB x | (1) | (4) 1M | 1 & | 1 & | 1 & |
| | 36 DS | 512KB x | x 9 | 2 | 2 | 2 |
| | | 36 | | | | |
|------+---------------+----------+--------+-----+-----+-----|
| 8MB | (1) 256KB x | (1) 1M x | NONE | 1 & | N/A | N/A |
| | 36 DS | 36 | | 2 | | |
|------+---------------+----------+--------+-----+-----+-----|
| 8MB | (1) 256KB x | NONE | (4) 1M | N/A | 2 & | 1 & |
| | 36 DS | | x 9 | | 3 | 2 |
|------+---------------+----------+--------+-----+-----+-----|
| 8MB | (1) 1M x 36 | (1) 1M x | NONE | 2 & | N/A | N/A |
| | | 36 | | 3 | | |
|------+---------------+----------+--------+-----+-----+-----|
| 8MB | (1) 1M x 36 | NONE | (4) 1M | N/A | 4 & | 1 & |
| | | | x 9 | | 5 | 2 |
|------+---------------+----------+--------+-----+-----+-----|
| 8MB | (1) 1M x 36 | NONE | NONE | N/A | N/A | N/A |
| | DS | | | | | |
|------+---------------+----------+--------+-----+-----+-----|
| 12MB | (1) 256KB x | (1) 1M x | (4) 1M | 1 & | 1 & | 1 & |
| | 36 DS | 36 | x 9 | 2 | 2 | 2 |
|------+---------------+----------+--------+-----+-----+-----|
| 12MB | (1) 1M x 36 | (1) 1M x | (4) 1M | 1 & | 4 & | 1 & |
| | | 36 | x 9 | 2 | 5 | 2 |
|------+---------------+----------+--------+-----+-----+-----|
| 16MB | (1) 1M x 36 | (1) 1M x | (4) 1M | 1 & | 1 & | 1 & |
| | DS | 36 | x 9 | 2 | 2 | 2 |
|------+---------------+----------+--------+-----+-----+-----|
| 16MB | (1) 1M x 36 | (1) 1M x | NONE | 1 & | 1 & | 1 & |
| | DS | 36 DS | | 2 | 2 | 2 |
|------+---------------+----------+--------+-----+-----+-----|
| 16MB | (1) 4M x 36 | NONE | NONE | N/A | N/A | N/A |
|------+---------------+----------+--------+-----+-----+-----|
| 16MB | NONE | NONE | (4) 4M | N/A | N/A | 2 & |
| | | | x 9 | | | 3 |
|------+---------------+----------+--------+-----+-----+-----|
| 20MB | (1) 2M x 36 | (1) 2M x | (4) 4M | 2 & | 2 & | 1 & |
| | | 36 | x 9 | 3 | 3 | 2 |
|------+---------------+----------+--------+-----+-----+-----|
| 24MB | (1) 2M x 36 | (1) 4M x | (4) 4M | 1 & | 1 & | 1 & |
| | DS | 36 | x 9 | 2 | 2 | 2 |
|------+---------------+----------+--------+-----+-----+-----|
| 32MB | (1) 4M x 36 | (1) 4M x | NONE | 2 & | N/A | N/A |
| | | 36 | | 3 | | |
|------+---------------+----------+--------+-----+-----+-----|
| 64MB | (1) 4M x 36 | (1) 4M x | NONE | 1 & | 1 & | 1 & |
| | DS | 36 DS | | 2 | 2 | 2 |
|------+---------------+----------+--------+-----+-----+-----|
| 64MB | (1) 4M x 36 | (1) 4M x | (4) 4M | 1 & | 1 & | 1 & |
| | DS | 36 | x 9 | 2 | 2 | 2 |
|------------------------------------------------------------|
| Note:Pins designated should be in the closed position. |
+------------------------------------------------------------+