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# ACHME COMPUTER, INC.
MS-4116 VER. 2.0
Processor 80486SX/80487SX/80486DX/80486DX2
Processor 25/33/50(internal)/50/66(internal)MHz
Speed
Chip Set Unidentified
Max. Onboard 128MB
DRAM
Cache 64/128/256KB
BIOS Unidentified
Dimensions 330mm x 218mm
I/O Options 32-bit external memory card, 32-bit VESA local
bus slot
NPU Options 4167
IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|------------------+-------------+---------------+-----------|
| Auxiliary | JP1 | Turbo switch | JP20 pins |
| keyboard | | | 15 - 17 |
| connector | | | |
|------------------+-------------+---------------+-----------|
| External battery | JP5 | Reset switch | JP20 pins |
| | | | 19 & 20 |
|------------------+-------------+---------------+-----------|
| Power LED & | JP20 pins 1 | 32-bit VESA | SL1 |
| keylock | - 5 | local bus | |
| | | slot | |
|------------------+-------------+---------------+-----------|
| Speaker | JP20 pins 7 | 32-bit | SL2 |
| | - 10 | external | |
| | | memory card | |
|------------------+-------------+---------------+-----------|
| Turbo LED | JP20 pins | | |
| | 12 & 13 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+--------+------------|
| » | Monitor type select color | JP4 | Closed |
|---+----------------------------------+--------+------------|
| | Monitor type select monochrome | JP4 | Open |
|---+----------------------------------+--------+------------|
| » | Battery type select internal | JP5 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | Battery type select external | JP5 | Closed |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JP14 | pins 2 & 3 |
| | alter | | closed |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JP15 | pins 2 & 3 |
| | alter | | closed |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JP16 | pins 2 & 3 |
| | alter | | closed |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JP21 | N/A |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JP22 | N/A |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JP23 | N/A |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JP24 | N/A |
| | alter | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|--------------+-----------------------+---------------------|
| 1MB | (4) 256K x 9 | NONE |
|--------------+-----------------------+---------------------|
| 2MB | (4) 256K x 9 | (4) 256K x 9 |
|--------------+-----------------------+---------------------|
| 4MB | (4) 1M x 9 | NONE |
|--------------+-----------------------+---------------------|
| 5MB | (4) 256K x 9 | (4) 1M x 9 |
|--------------+-----------------------+---------------------|
| 8MB | (4) 1M x 9 | (4) 1M x 9 |
|--------------+-----------------------+---------------------|
| 16MB | (4) 4M x 9 | NONE |
|--------------+-----------------------+---------------------|
| 17MB | (4) 256K x 9 | (4) 4M x 9 |
|--------------+-----------------------+---------------------|
| 20MB | (4) 1M x 9 | (4) 4M x 9 |
|--------------+-----------------------+---------------------|
| 32MB | (4) 4M x 9 | (4) 4M x 9 |
|--------------+-----------------------+---------------------|
| 64MB | (4) 16M x 9 | NONE |
|------------------------------------------------------------|
| Note: In order to use 128MB, an external memory card must |
| be installed. It uses the same configuration as above. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | TAG |
|------------+---------------+---------------+---------------|
| 64KB | (4) 8K x 8 | (4) 8K x 8 | (1) 8K x 8 |
|------------+---------------+---------------+---------------|
| 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 | JP6 | JP7 | JP8 | JP9 | JP10 | JP11 | JP12 |
|-------+-------+-------+-------+-------+------+------+------|
| 64KB | 1 & 2 | 1 & 2 | 2 & 3 | Open | Open | Open | Open |
|-------+-------+-------+-------+-------+------+------+------|
| 128KB | 1 & 2 | 2 & 3 | 2 & 3 |Closed | Open |Closed| Open |
|-------+-------+-------+-------+-------+------+------+------|
| 256KB | 2 & 3 | 2 & 3 | 2 & 3 |Closed |Closed|Closed|Closed|
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | JP13 | JP17 | JP18 |
|-----------+--------+-------------------+-------------------|
| 80486SX | Open | pins 2 & 3 closed | Open |
|-----------+--------+-------------------+-------------------|
| 80487SX | Closed | pins 1 & 2 closed | pins 2 & 3 closed |
|-----------+--------+-------------------+-------------------|
| 80486DX | Closed | pins 1 & 2 closed | pins 1 & 2 closed |
|-----------+--------+-------------------+-------------------|
| 80486DX2 | Closed | pins 1 & 2 closed | pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION |
|------------------------------------------------------------|
| Speed | JP24 |
|----------------------------+-------------------------------|
| 25MHz | pins 2 & 3 closed |
|----------------------------+-------------------------------|
| 33MHz | pins 2 & 3 closed |
|----------------------------+-------------------------------|
| 50iMHz | pins 2 & 3 closed |
|----------------------------+-------------------------------|
| 50MHz | pins 1 & 2 closed |
|----------------------------+-------------------------------|
| 66iMHz | pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BUS SPEED CONFIGURATION |
|------------------------------------------------------------|
| CPU speed | JP19 |
|----------------------------+-------------------------------|
| <= 33MHz | pins 2 & 3 closed |
|----------------------------+-------------------------------|
| > 33MHz | pins 1 & 2 closed |
+------------------------------------------------------------+
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