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# ACHME COMPUTER, INC.
MS-4129 (ISA 486 AL1), ALI 486 NONCACHE
Processor CX486SX/80486SX/80487SX/AMD486DX/80486DX/80486DX2/Pentium
Overdrive
Processor 25/33/40/50(internal)/50/66(internal)MHz
Speed
Chip Set ALI
Max. 112MB
Onboard
DRAM
Cache None
BIOS AMI
Dimensions 220mm x 220mm
I/O None
Options
NPU CX487
Options
(IMG) IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|---------------------+-----------+--------------+-----------|
| Keyboard connector | J3 | Turbo LED | J5 (pins |
| | | | 12-13) |
|---------------------+-----------+--------------+-----------|
| External battery | J4 | Turbo switch | J5 (pins |
| | | | 15-17) |
|---------------------+-----------+--------------+-----------|
| Power LED & keylock | J5 (pins | Reset switch | J5 (pins |
| | 1-5) | | 19-20) |
|---------------------+-----------+--------------+-----------|
| Speaker | J5 (pins | | |
| | 7-10) | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+--------+------------|
| » | Factory configured - do not | CN1 | Open |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | CN2 | Open |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | CN3 | Open |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | Battery type select internal | J4 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | Battery type select external | J4 | Closed |
|---+----------------------------------+--------+------------|
| » | Monitor type select monochrome | JP4 | Open |
|---+----------------------------------+--------+------------|
| | Monitor type select color | JP4 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | CPU type select PGA | JP28 | Open |
|---+----------------------------------+--------+------------|
| | CPU type select PQFP | JP28 | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 |
|------------+---------------+---------------+---------------|
| 1MB | (4) 256K x 9 | NONE | NONE |
|------------+---------------+---------------+---------------|
| 1MB | NONE | (1) 256K x 36 | NONE |
|------------+---------------+---------------+---------------|
| 1MB | NONE | NONE | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 1MB | NONE | (1) 256K x 36 | NONE |
|------------+---------------+---------------+---------------|
| 2MB | (4) 256K x 9 | (1) 256K x 36 | NONE |
|------------+---------------+---------------+---------------|
| 2MB | NONE | (1) 512K x 36 | NONE |
|------------+---------------+---------------+---------------|
| 2MB | NONE | NONE | (1) 512K x 36 |
|------------+---------------+---------------+---------------|
| 2MB | NONE | (1) 256K x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 2MB | NONE | (1) 512K x 36 | NONE |
|------------+---------------+---------------+---------------|
| 3MB | (4) 256K x 9 | (1) 512K x 36 | NONE |
|------------+---------------+---------------+---------------|
| 3MB | (4) 256K x 9 | (1) 256K x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 3MB | NONE | (1) 256K x 36 | (1) 512K x 36 |
|------------+---------------+---------------+---------------|
| 3MB | NONE | (1) 512K x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 4MB | (4) 1M x 9 | NONE | NONE |
|------------+---------------+---------------+---------------|
| 4MB | (4) 256K x 9 | (1) 512K x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 4MB | NONE | (1) 1M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 4MB | NONE | NONE | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 4MB | NONE | (1) 512K x 36 | (1) 512K x 36 |
|------------+---------------+---------------+---------------|
| 4MB | NONE | (1) 1M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 5MB | (4) 256K x 9 | (1) 1M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 5MB | NONE | (1) 256K x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 5MB | NONE | (1) 1M x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 6MB | (4) 256K x 9 | (1) 256K x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 6MB | (4) 256K x 9 | (1) 1M x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 6MB | (1) 1M x 9 | (1) 256K x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 6MB | NONE | (1) 512K x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 7MB | (4) 256K x 9 | (1) 512K x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 7MB | (1) 1M x 9 | (1) 512K x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 8MB | NONE | (1) 2M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 8MB | NONE | NONE | (1) 2M x 36 |
|------------+---------------+---------------+---------------|
| 8MB | NONE | (1) 1M x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 8MB | NONE | (1) 2M x 36 | NONE |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 |
|------------+---------------+---------------+---------------|
| 9MB | (4) 256K x 9 | (1) 2M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 9MB | (4) 256K x 9 | (1) 1M x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 9MB | (1) 1M x 9 | (1) 256K x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 9MB | (1) 1M x 9 | (1) 1M x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 9MB | NONE | (1) 256K x 36 | (1) 2M x 36 |
|------------+---------------+---------------+---------------|
| 10MB | NONE | (1) 512K x 36 | (1) 2M x 36 |
|------------+---------------+---------------+---------------|
| 10MB | NONE | (1) 2M x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 10MB | (4) 256K x 9 | (1) 2M x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 10MB | (1) 1M x 9 | (1) 512K x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 10MB | NONE | (1) 2M x 36 | (1) 512K x 36 |
|------------+---------------+---------------+---------------|
| 12MB | (1) 1M x 9 | (1) 1M x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 12MB | NONE | (1) 1M x 36 | (1) 2M x 36 |
|------------+---------------+---------------+---------------|
| 12MB | NONE | (1) 2M x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 13MB | (4) 256K x 9 | (1) 2M x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 13MB | (1) 1M x 9 | (1) 2M x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 16MB | (4) 4M x 9 | NONE | NONE |
|------------+---------------+---------------+---------------|
| 16MB | (1) 1M x 9 | (1) 2M x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 16MB | NONE | (1) 4M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 16MB | NONE | NONE | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 16MB | NONE | (1) 2M x 36 | (1) 2M x 36 |
|------------+---------------+---------------+---------------|
| 16MB | NONE | (1) 4M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 17MB | (4) 256K x 9 | (1) 4M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 17MB | NONE | (1) 256K x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 17MB | NONE | (1) 4M x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 18MB | (4) 256K x 9 | (1) 256K x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 18MB | (4) 256K x 9 | (1) 4M x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 18MB | (1) 4M x 9 | (1) 256K x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 18MB | NONE | (1) 512K x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 18MB | (1) 4M x 36 | NONE | (1) 512K x 36 |
|------------+---------------+---------------+---------------|
| 18MB | NONE | (1) 4M x 36 | (1) 512K x 36 |
|------------+---------------+---------------+---------------|
| 19MB | (4) 256K x 9 | (1) 512K x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 19MB | (1) 4M x 9 | (1) 512K x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 20MB | NONE | (1) 1M x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 20MB | NONE | (1) 4M x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 21MB | (4) 256K x 9 | (1) 1M x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 21MB | (4) 256K x 9 | (1) 4M x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 21MB | (1) 1M x 9 | (1) 256K x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 21MB | (1) 1M x 9 | (1) 4M x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 21MB | (1) 4M x 9 | (1) 256K x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 21MB | (1) 4M x 9 | (1) 1M x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 22MB | (1) 1M x 9 | (1) 512K x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 22MB | (1) 4M x 9 | (1) 512K x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 24MB | (1) 1M x 9 | (1) 1M x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 24MB | (1) 1M x 9 | (1) 4M x 36 | (1) 1M x 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 |
|------------+---------------+---------------+---------------|
| 24MB | (1) 4M x 9 | (1) 1M x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 24MB | NONE | (1) 2M x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 24MB | NONE | (1) 4M x 36 | (1) 2M x 36 |
|------------+---------------+---------------+---------------|
| 25MB | (4) 256K x 9 | (1) 2M x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 25MB | (1) 4M x 9 | (1) 2M x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 28MB | (1) 1M x 9 | (1) 2M x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 28MB | (1) 4M x 9 | (1) 2M x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 32MB | NONE | (1) 8M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 32MB | NONE | NONE | (1) 8M x 36 |
|------------+---------------+---------------+---------------|
| 32MB | NONE | (1) 4M x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 32MB | NONE | (1) 8M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 33MB | (4) 256K x 9 | (1) 8M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 33MB | (4) 256K x 9 | (1) 4M x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 33MB | (1) 4M x 9 | (1) 256K x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 33MB | (1) 4M x 9 | (1) 4M x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 33MB | NONE | (1) 256K x 36 | (1) 8M x 36 |
|------------+---------------+---------------+---------------|
| 33MB | NONE | (1) 8M x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 34MB | (4) 256K x 9 | (1) 8M x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 34MB | (1) 4M x 9 | (1) 512K x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 34MB | NONE | (1) 512K x 36 | (1) 8M x 36 |
|------------+---------------+---------------+---------------|
| 34MB | NONE | (1) 8M x 36 | (1) 512K x 36 |
|------------+---------------+---------------+---------------|
| 36MB | (1) 1M x 9 | (1) 4M x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 36MB | (1) 4M x 9 | (1) 1M x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 36MB | (1) 4M x 9 | (1) 4M x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 36MB | NONE | (1) 1M x 36 | (1) 8M x 36 |
|------------+---------------+---------------+---------------|
| 36MB | NONE | (1) 8M x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 37MB | (4) 256K x 9 | (1) 8M x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 37MB | (1) 1M x 9 | (1) 8M x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 40MB | (1) 1M x 9 | (1) 8M x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 40MB | (1) 4M x 9 | (1) 2M x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 40MB | NONE | (1) 2M x 36 | (1) 8M x 36 |
|------------+---------------+---------------+---------------|
| 40MB | NONE | (1) 8M x 36 | (1) 2M x 36 |
|------------+---------------+---------------+---------------|
| 48MB | (1) 4M x 9 | (1) 4M x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 48MB | NONE | (1) 4M x 36 | (1) 8M x 36 |
|------------+---------------+---------------+---------------|
| 48MB | NONE | (1) 8M x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 49MB | (4) 256K x 9 | (1) 8M x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 49MB | (1) 4M x 9 | (1) 8M x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 52MB | (1) 1M x 9 | (1) 8M x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 52MB | (1) 4M x 9 | (1) 8M x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 64MB | (4) 16M x 9 | NONE | NONE |
|------------+---------------+---------------+---------------|
| 64MB | (1) 4M x 9 | (1) 8M x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 64MB | NONE | (1) 8M x 36 | (1) 8M x 36 |
|------------+---------------+---------------+---------------|
| 66MB | (4) 16M x 9 | (1) 256K x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 67MB | (4) 16M x 9 | (1) 512K x 36 | (1) 256K x 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 |
|------------+---------------+---------------+---------------|
| 69MB | (4) 16M x 9 | (1) 256K x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 69MB | (4) 16M x 9 | (1) 1M x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 70MB | (4) 16M x 9 | (1) 512K x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 72MB | (4) 16M x 9 | (1) 1M x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 73MB | (4) 16M x 9 | (1) 2M x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 76MB | (4) 16M x 9 | (1) 2M x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 81MB | (4) 16M x 9 | (1) 256K x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 81MB | (4) 16M x 9 | (1) 4M x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 82MB | (4) 16M x 9 | (1) 512K x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 84MB | (4) 16M x 9 | (1) 1M x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 84MB | (4) 16M x 9 | (1) 4M x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 88MB | (4) 16M x 9 | (1) 2M x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 96MB | (4) 16M x 9 | (1) 4M x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 97MB | (4) 16M x 9 | (1) 8M x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 100MB | (4) 16M x 9 | (1) 8M x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 112MB | (4) 16M x 9 | (1) 8M x 36 | (1) 4M x 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | JP10 | JP14 |
|-------------+-------------------+--------------------------|
| 80486SX | Open | pins 2 & 3 closed |
|-------------+-------------------+--------------------------|
| 80487SX | pins 1 & 2 closed | pins 1 & 2, 3 & 4 closed |
|-------------+-------------------+--------------------------|
| 80486DX/DX2 | pins 2 & 3 closed | pins 1 & 2, 3 & 4 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type |JP11 |JP12 |JP13 |JP17 |JP18 |JP19 | JP27 |
|-----------------+-----+-----+-----+-----+-----+-----+------|
| CX486SX/CX487SX |Open |1 & 2|1 & 2|1 & 2|1 & 2|1 & 2|Closed|
|-----------------+-----+-----+-----+-----+-----+-----+------|
|Pentium Overdrive|Open |1 & 2|1 & 2|1 & 2|1 & 2|1 & 2|Closed|
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION |
|------------------------------------------------------------|
| Speed | JP3 | JP16 | JP24 | JP25 |
|----------+---------+---------+-------+---------------------|
| 25MHz | 1 & 2 | 1 & 2 | 1 & 2 | 3 & 4 |
|----------+---------+---------+-------+---------------------|
| 33MHz | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2, 5 & 6 |
|----------+---------+---------+-------+---------------------|
| 40MHz | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2, 3 & 4, 5 & 6 |
|----------+---------+---------+-------+---------------------|
| 50iMHz | 1 & 2 | 1 & 2 | 1 & 2 | 3 & 4 |
|----------+---------+---------+-------+---------------------|
| 50MHz | 2 & 3 | 2 & 3 | 2 & 3 | 3 & 4 |
|----------+---------+---------+-------+---------------------|
| 66iMHz | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2, 5 & 6 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+