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# ACHME COMPUTER, INC.
MS-4132
Processor 80486SX/SL80486SX/80487SX/AM486DX/80486DX/SL80486DX/AM486DX2/80486DX2/SL80486DX2
Processor 25/33/40/50(internal)/50/66(internal)MHz
Speed
Chip Set SIS
Max. 96MB
Onboard
DRAM
Cache 128/256/512KB
BIOS AMI/Phoenix
Dimensions 260mm x 221mm
I/O 32-bit VESA local bus slots (3), green PC connector
Options
NPU None
Options
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-----------------+------------+-----------------+-----------|
| Auxiliary | CN1 | Reset switch | JFP pins |
| keyboard | | | 19 & 20 |
| connector | | | |
|-----------------+------------+-----------------+-----------|
| External | JB | Green PC | JG1 |
| battery | | connector | |
| | | (monitor) | |
|-----------------+------------+-----------------+-----------|
| Power LED & | JFP pins 1 | Green PC LED | JG2 |
| keylock | - 5 | | |
|-----------------+------------+-----------------+-----------|
| Speaker | JFP pins 7 | Green PC | JG3 |
| | - 10 | connector | |
|-----------------+------------+-----------------+-----------|
| Turbo LED | JFP pins | 32-bit VESA | SL1 - SL3 |
| | 12 & 13 | local bus slots | |
|-----------------+------------+-----------------+-----------|
| Turbo switch | JFP pins | | |
| | 15 - 17 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+--------+------------|
| » | Battery type select internal | JB | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | Battery type select external | JB | Closed |
|---+----------------------------------+--------+------------|
| » | CPU type select PQFP CPU | JC1 | Open |
| | installed | | |
|---+----------------------------------+--------+------------|
| | CPU type select PGA CPU | JC1 | Closed |
| | installed | | |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JC5 | N/A |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JC6 | N/A |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JC7 | N/A |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JC9 | N/A |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JC10 | N/A |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | Monitor type select monochrome | JP1 | Open |
|---+----------------------------------+--------+------------|
| | Monitor type select color | JP1 | Closed |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JP16 | N/A |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | VESA local bus card select any | JP23 | Open |
| | card installed | | |
|---+----------------------------------+--------+------------|
| | VESA local bus card select | JP23 | Closed |
| | special cards only | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 |
|------------+---------------+---------------+---------------|
| 1MB | NONE | (1) 256K x 36 | NONE |
|------------+---------------+---------------+---------------|
| 1MB | (4) 256K x 9 | NONE | NONE |
|------------+---------------+---------------+---------------|
| 2MB | NONE | (1) 256K x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 2MB | NONE | (1) 512K x 36 | NONE |
|------------+---------------+---------------+---------------|
| 2MB | (4) 256K x 9 | (1) 256K x 36 | NONE |
|------------+---------------+---------------+---------------|
| 4MB | NONE | (1) 512K x 36 | (1) 512K x 36 |
|------------+---------------+---------------+---------------|
| 4MB | NONE | (1) 1M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 4MB | (4) 1M x 9 | NONE | NONE |
|------------+---------------+---------------+---------------|
| 5MB | NONE | (1) 256K x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 5MB | (4) 1M x 9 | (1) 256K x 36 | NONE |
|------------+---------------+---------------+---------------|
| 6MB | NONE | (1) 512K x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 6MB | (4) 1M x 9 | (1) 512K x 36 | NONE |
|------------+---------------+---------------+---------------|
| 6MB | (4) 1M x 9 | (1) 256K x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 8MB | NONE | (1) 1M x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 8MB | NONE | (1) 2M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 8MB | (4) 1M x 9 | (1) 1M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 8MB | (4) 1M x 9 | (1) 512K x 36 | (1) 512K x 36 |
|------------+---------------+---------------+---------------|
| 12MB | (4) 1M x 9 | (1) 1M x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 16MB | NONE | (1) 2M x 36 | (1) 2M x 36 |
|------------+---------------+---------------+---------------|
| 16MB | NONE | (1) 4M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 16MB | (4) 4M x 9 | NONE | NONE |
|------------+---------------+---------------+---------------|
| 17MB | NONE | (1) 256K x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 17MB | (4) 4M x 9 | (1) 256K x 36 | NONE |
|------------+---------------+---------------+---------------|
| 18MB | NONE | (1) 512K x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 18MB | (4) 4M x 9 | (1) 512K x 36 | NONE |
|------------+---------------+---------------+---------------|
| 18MB | (4) 4M x 9 | (1) 256K x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 20MB | NONE | (1) 1M x 36 | (1) 4M x 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 |
|------------+---------------+---------------+---------------|
| 20MB | (4) 4M x 9 | (1) 1M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 20MB | (4) 4M x 9 | (1) 512K x 36 | (1) 512K x 36 |
|------------+---------------+---------------+---------------|
| 24MB | (4) 4M x 9 | (1) 1M x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 32MB | NONE | (1) 4M x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 32MB | NONE | (1) 8M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 32MB | (4) 4M x 9 | (1) 4M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 36MB | NONE | (1) 1M x 36 | (1) 8M x 36 |
|------------+---------------+---------------+---------------|
| 36MB | (4) 1M x 9 | NONE | (1) 8M x 36 |
|------------+---------------+---------------+---------------|
| 36MB | (4) 4M x 9 | (1) 1M x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 48MB | NONE | (1) 4M x 36 | (1) 8M x 36 |
|------------+---------------+---------------+---------------|
| 48MB | (4) 4M x 9 | NONE | (1) 8M x 36 |
|------------+---------------+---------------+---------------|
| 48MB | (4) 4M x 9 | (1) 4M x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 64MB | NONE | (1) 8M x 36 | (1) 8M x 36 |
|------------+---------------+---------------+---------------|
| 64MB | (4) 16M x 9 | NONE | NONE |
|------------+---------------+---------------+---------------|
| 65MB | (4) 16M x 9 | (1) 256K x 36 | NONE |
|------------+---------------+---------------+---------------|
| 68MB | (4) 16M x 9 | (1) 1M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 72MB | (4) 16M x 9 | (1) 1M x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 80MB | (4) 16M x 9 | (1) 4M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 96MB | (4) 16M x 9 | (1) 4M x 36 | (1) 4M x 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JM1 |
|----------------------------+-------------------------------|
| 1MB | Open |
|----------------------------+-------------------------------|
| 1MB | pins 1 & 2 closed |
|----------------------------+-------------------------------|
| 2MB | Open |
|----------------------------+-------------------------------|
| 2MB | Open |
|----------------------------+-------------------------------|
| 2MB | pins 2 & 3 or 3 & 4 closed |
|----------------------------+-------------------------------|
| 4MB | Open |
|----------------------------+-------------------------------|
| 4MB | Open |
|----------------------------+-------------------------------|
| 4MB | pins 1 & 2 closed |
|----------------------------+-------------------------------|
| 5MB | Open |
|----------------------------+-------------------------------|
| 5MB | pins 2 & 3 or 3 & 4 closed |
|----------------------------+-------------------------------|
| 6MB | Open |
|----------------------------+-------------------------------|
| 6MB | pins 2 & 3 or 3 & 4 closed |
|----------------------------+-------------------------------|
| 6MB | pins 4 & 5 closed |
|----------------------------+-------------------------------|
| 8MB | Open |
|----------------------------+-------------------------------|
| 8MB | Open |
|----------------------------+-------------------------------|
| 8MB | pins 2 & 3 or 3 & 4 closed |
|----------------------------+-------------------------------|
| 8MB | pins 4 & 5 closed |
|----------------------------+-------------------------------|
| 12MB | pins 4 & 5 closed |
|----------------------------+-------------------------------|
| 16MB | Open |
|----------------------------+-------------------------------|
| 16MB | Open |
|----------------------------+-------------------------------|
| 16MB | pins 1 & 2 closed |
|----------------------------+-------------------------------|
| 17MB | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM JUMPER CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Size | JM1 |
|----------------------------+-------------------------------|
| 17MB | pins 2 & 3 or 3 & 4 closed |
|----------------------------+-------------------------------|
| 18MB | Open |
|----------------------------+-------------------------------|
| 18MB | pins 2 & 3 or 3 & 4 closed |
|----------------------------+-------------------------------|
| 18MB | pins 4 & 5 closed |
|----------------------------+-------------------------------|
| 20MB | Open |
|----------------------------+-------------------------------|
| 20MB | pins 2 & 3 or 3 & 4 closed |
|----------------------------+-------------------------------|
| 20MB | pins 4 & 5 closed |
|----------------------------+-------------------------------|
| 24MB | pins 4 & 5 closed |
|----------------------------+-------------------------------|
| 32MB | Open |
|----------------------------+-------------------------------|
| 32MB | Open |
|----------------------------+-------------------------------|
| 32MB | pins 2 & 3 or 3 & 4 closed |
|----------------------------+-------------------------------|
| 36MB | Open |
|----------------------------+-------------------------------|
| 36MB | pins 1 & 2 closed |
|----------------------------+-------------------------------|
| 36MB | pins 4 & 5 closed |
|----------------------------+-------------------------------|
| 48MB | Open |
|----------------------------+-------------------------------|
| 48MB | pins 1 & 2 closed |
|----------------------------+-------------------------------|
| 48MB | pins 4 & 5 closed |
|----------------------------+-------------------------------|
| 64MB | Open |
|----------------------------+-------------------------------|
| 64MB | pins 1 & 2 closed |
|----------------------------+-------------------------------|
| 65MB | pins 2 & 3 or 3 & 4 closed |
|----------------------------+-------------------------------|
| 68MB | pins 2 & 3 or 3 & 4 closed |
|----------------------------+-------------------------------|
| 72MB | pins 4 & 5 closed |
|----------------------------+-------------------------------|
| 80MB | pins 2 & 3 or 3 & 4 closed |
|----------------------------+-------------------------------|
| 96MB | pins 4 & 5 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | TAG |
|-----------+--------------+-------------+-------------------|
| 128KB | (4) 32K x 8 | NONE | (1) 8K, (1) 16K |
| | | | or (1) 32K x 8 |
|-----------+--------------+-------------+-------------------|
| 256KB (A) | (4) 32K x 8 | (4) 32K x 8 | (1) 16K or (1) |
| | | | 32K x 8 |
|-----------+--------------+-------------+-------------------|
| 256KB (B) | (4) 64K x 8 | NONE | (1) 16K or (1) |
| | | | 32K x 8 |
|-----------+--------------+-------------+-------------------|
| 512KB | (4) 128K x 8 | NONE | (1) 32K x 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JS1 | JS2 | JS3 |
|-----------+----------------+---------------+---------------|
| 128KB | pins 1 & 2 | pins 1 & 2 | pins 1 & 2 |
| | closed | closed | closed |
|-----------+----------------+---------------+---------------|
| 256KB (A) | pins 2 & 3 | pins 2 & 3 | pins 1 & 2 |
| | closed | closed | closed |
|-----------+----------------+---------------+---------------|
| 256KB (B) | pins 2 & 3 | pins 1 & 2 | pins 1 & 2 |
| | closed | closed | closed |
|-----------+----------------+---------------+---------------|
| 512KB | pins 2 & 3 | pins 1 & 2 | pins 2 & 3 |
| | closed | closed | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | JC2 | JC3 | JC4 | JC8 |
|------------+--------------+--------------+--------+--------|
| 80486SX | Open | 2 & 3 | Open | Open |
|------------+--------------+--------------+--------+--------|
| SL80486SX | 1 & 2, 3 & 4 | 2 & 3 | 1 & 2 | Open |
|------------+--------------+--------------+--------+--------|
| 80487SX | Open | 1 & 2, 3 & 4 | Open | 1 & 2 |
|------------+--------------+--------------+--------+--------|
| AM486DX | Open | 1 & 2, 3 & 4 | Open | 2 & 3 |
|------------+--------------+--------------+--------+--------|
| 80486DX | Open | 1 & 2, 3 & 4 | Open | 2 & 3 |
|------------+--------------+--------------+--------+--------|
| SL80486DX | 1 & 2, 3 & 4 | 1 & 2, 3 & 4 | 1 & 2 | 2 & 3 |
|------------+--------------+--------------+--------+--------|
| AM486DX2 | Open | 1 & 2, 3 & 4 | Open | 2 & 3 |
|------------+--------------+--------------+--------+--------|
| 80486DX2 | Open | 1 & 2, 3 & 4 | Open | 2 & 3 |
|------------+--------------+--------------+--------+--------|
| SL80486DX2 | 1 & 2, 3 & 4 | 1 & 2, 3 & 4 | 1 & 2 | 2 & 3 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION |
|------------------------------------------------------------|
| Speed | JK1 | JK5 |
|------------+--------------------------+--------------------|
| 25MHz | Open | pins 2 & 3 closed |
|------------+--------------------------+--------------------|
| 33MHz | pins 1 & 2, 3 & 4 closed | pins 2 & 3 closed |
|------------+--------------------------+--------------------|
| 40MHz | pins 3 & 4 closed | pins 2 & 3 closed |
|------------+--------------------------+--------------------|
| 50iMHz | Open | pins 2 & 3 closed |
|------------+--------------------------+--------------------|
| 50MHz | pins 1 & 2, 5 & 6 closed | pins 1 & 2 closed |
|------------+--------------------------+--------------------|
| 66iMHz | pins 1 & 2, 3 & 4 closed | pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VESA WAIT STATE CONFIGURATION |
|------------------------------------------------------------|
| Wait states | JP8 |
|------------------------------------+-----------------------|
| | 0 wait states | Closed |
|----+-------------------------------+-----------------------|
| » | 1 wait state | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VL BUS SPEED CONFIGURATION |
|------------------------------------------------------------|
| CPU speed | JP9 |
|-------------------------------+----------------------------|
| <= 33MHz | Open |
|-------------------------------+----------------------------|
| > 33MHz | Closed |
+------------------------------------------------------------+