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# ACHME COMPUTER, INC.
MS-4135
Processor AM486SX/80486SX/CX486M7/AM486DX/80486DX/AM486DX2/80486DX2/
80486DX4/Pentium Overdrive
Processor 25/33/40/50(internal)/66(internal)/75(internal)/100(internal)MHz
Speed
Chip Set Contaq
Max. 64MB
Onboard
DRAM
Cache 128/256KB
BIOS AMI/Award
Dimensions 270mm x 220mm
I/O 32-bit PCI slots (4), green PC connector
Options
NPU None
Options
(IMG) IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+---------------+-------------|
| External battery | JBA | Speaker | JM9 pins 7 |
| | | | - 10 |
|-------------------+----------+---------------+-------------|
| Green PC | JG1 | Turbo LED | JM9 pins 12 |
| connector | | | & 13 |
| (monitor) | | | |
|-------------------+----------+---------------+-------------|
| Green PC | JG2 | Turbo switch | JM9 pins 15 |
| connector | | | - 17 |
|-------------------+----------+---------------+-------------|
| Green PC LED | JG3 | Reset switch | JM9 pins 19 |
| | | | & 20 |
|-------------------+----------+---------------+-------------|
| Power LED & | JM9 pins | 32-bit PCI | PC1 - PC4 |
| keylock | 1 - 5 | slots | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+--------+------------|
| » | Battery type select internal | JBA | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | Battery type select external | JBA | Closed |
|---+----------------------------------+--------+------------|
| | CX486M7 3.3v not installed | JC8 | Open |
|---+----------------------------------+--------+------------|
| | CX486M7 3.3v installed | JC8 | Closed |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JK8 | pins 1 & 2 |
| | alter | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|------+-------------+-------------+------------+------------|
| 1MB | (1) 256K x | NONE | NONE | NONE |
| | 36 | | | |
|------+-------------+-------------+------------+------------|
| 2MB | (1) 256K x | (1) 256K x | NONE | NONE |
| | 36 | 36 | | |
|------+-------------+-------------+------------+------------|
| 2MB | (1) 512K x | NONE | NONE | NONE |
| | 36 | | | |
|------+-------------+-------------+------------+------------|
| 3MB | (1) 256K x | (1) 256K x | (1) 256K x | NONE |
| | 36 | 36 | 36 | |
|------+-------------+-------------+------------+------------|
| 4MB | (1) 256K x | (1) 256K x | (1) 256K x | (1) 256K x |
| | 36 | 36 | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 4MB | (1) 1M x 36 | NONE | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 4MB | (1) 512K x | NONE | (1) 512K x | NONE |
| | 36 | | 36 | |
|------+-------------+-------------+------------+------------|
| 5MB | (1) 256K x | (1) 1M x 36 | NONE | NONE |
| | 36 | | | |
|------+-------------+-------------+------------+------------|
| 6MB | (1) 1M x 36 | (1) 256K x | (1) 256K x | NONE |
| | | 36 | 36 | |
|------+-------------+-------------+------------+------------|
| 7MB | (1) 1M x 36 | (1) 256K x | (1) 256K x | (1) 256K x |
| | | 36 | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 8MB | (1) 1M x 36 | (1) 1M x 36 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 8MB | (1) 2M x 36 | NONE | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 9MB | (1) 256K x | (1) 1M x 36 | (1) 1M x | NONE |
| | 36 | | 36 | |
|------+-------------+-------------+------------+------------|
| 10MB | (1) 2M x 36 | NONE | (1) 512K x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 10MB | (1) 512K x | NONE | (1) 2M x | NONE |
| | 36 | | 36 | |
|------+-------------+-------------+------------+------------|
| 10MB | (1) 2M x 36 | NONE | (1) 512K x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 12MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 13MB | (1) 256K x | (1) 1M x 36 | (1) 1M x | (1) 1M x |
| | 36 | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 16MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x | (1) 1M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 16MB | (1) 4M x 36 | NONE | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 16MB | (1) 2M x 36 | NONE | (1) 2M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 16MB | (1) 2M x 36 | NONE | (1) 2M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 17MB | (1) 256K x | (1) 4M x 36 | NONE | NONE |
| | 36 | | | |
|------+-------------+-------------+------------+------------|
| 17MB | (1) 4M x 36 | (1) 256K x | NONE | NONE |
| | | 36 | | |
|------+-------------+-------------+------------+------------|
| 18MB | (1) 4M x 36 | (1) 256K x | (1) 256K x | NONE |
| | | 36 | 36 | |
|------+-------------+-------------+------------+------------|
| 19MB | (1) 4M x 36 | (1) 256K x | (1) 256K x | (1) 256K x |
| | | 36 | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 20MB | (1) 1M x 36 | (1) 4M x 36 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 20MB | (1) 4M x 36 | (1) 1M x 36 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 24MB | (1) 4M x 36 | (1) 1M x 36 | (1) 1M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 28MB | (1) 4M x 36 | (1) 1M x 36 | (1) 1M x | (1) 1M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 32MB | (1) 4M x 36 | (1) 4M x 36 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 32MB | (1) 8M x 36 | NONE | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 33MB | (1) 256K x | (1) 4M x 36 | (1) 4M x | NONE |
| | 36 | | 36 | |
|------+-------------+-------------+------------+------------|
| 34MB | (1) 8M x 36 | NONE | (1) 512K x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 34MB | (1) 512K x | NONE | (1) 8M x | NONE |
| | 36 | | 36 | |
|------+-------------+-------------+------------+------------|
| 34MB | (1) 8M x 36 | NONE | (1) 512K x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 36MB | (1) 1M x 36 | (1) 4M x 36 | (1) 4M x | NONE |
| | | | 36 | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|------+-------------+-------------+------------+------------|
| 40MB | (1) 8M x 36 | NONE | (1) 2M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 40MB | (1) 2M x 36 | NONE | (1) 8M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 40MB | (1) 2M x 36 | NONE | (1) 8M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 40MB | (1) 8M x 36 | NONE | (1) 2M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 48MB | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 49MB | (1) 256K x | (1) 4M x 36 | (1) 4M x | (1) 4M x |
| | 36 | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 52MB | (1) 1M x 36 | (1) 4M x 36 | (1) 4M x | (1) 4M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 64MB | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x | (1) 4M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 64MB | (1) 8M x 36 | NONE | (1) 8M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 64MB | (1) 8M x 36 | NONE | (1) 8M x | NONE |
| | | | 36 | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | TAG |
|-------------+---------------+---------------+--------------|
| 128KB | (4) 32K x 8 | NONE | (1) 8K x 8 |
|-------------+---------------+---------------+--------------|
| 256KB (A) | (4) 32K x 8 | (4) 32K x 8 | (1) 32K x 8 |
|-------------+---------------+---------------+--------------|
| 256KB (B) | (4) 64K 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 1 & 2 | pins 2 & 3 |
| | closed | closed | closed |
|-----------+----------------+---------------+---------------|
| 256KB (B) | pins 2 & 3 | pins 1 & 2 | pins 1 & 2 |
| | closed | closed | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | JC5 | JC7 | JC25 |
|------------+-------------------------+------------+--------|
| 80486SX | pins 2 & 3 closed | Open | Closed |
|------------+-------------------------+------------+--------|
| AM486SX | pins 2 & 3 closed | Open | Closed |
|------------+-------------------------+------------+--------|
| AM486DX | pins 1 & 2, 3 & 4 | pins 2 & 3 | Closed |
| | closed | closed | |
|------------+-------------------------+------------+--------|
| 80486DX | pins 1 & 2, 3 & 4 | pins 2 & 3 | Closed |
| | closed | closed | |
|------------+-------------------------+------------+--------|
| AM486DX2 | pins 1 & 2, 3 & 4 | pins 2 & 3 | Closed |
| | closed | closed | |
|------------+-------------------------+------------+--------|
| 80486DX2 | pins 1 & 2, 3 & 4 | pins 2 & 3 | Closed |
| | closed | closed | |
|------------+-------------------------+------------+--------|
| 80486DX4 | pins 1 & 2, 3 & 4 | pins 2 & 3 | Open |
| | closed | closed | |
|------------+-------------------------+------------+--------|
| Pentium | pins 1 & 2, 3 & 4 | pins 1 & 2 | Closed |
| Overdrive | closed | closed | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION |
|------------------------------------------------------------|
| Speed | JC12 | JK1 | JK2 | JK3 | JK7 |
|----------+----------+----------+----------+--------+-------|
| 25MHz | Open | Open | Open | Closed | 1 & 2 |
|----------+----------+----------+----------+--------+-------|
| 33MHz | Open | Closed | Closed | Open | 1 & 2 |
|----------+----------+----------+----------+--------+-------|
| 40MHz | Closed | Open | Closed | Open | 2 & 3 |
|----------+----------+----------+----------+--------+-------|
| 50iMHz | Open | Open | Open | Closed | 1 & 2 |
|----------+----------+----------+----------+--------+-------|
| 66iMHz | Open | Closed | Closed | Open | 1 & 2 |
|----------+----------+----------+----------+--------+-------|
| 75iMHz | Open | Open | Open | Closed | 1 & 2 |
|----------+----------+----------+----------+--------+-------|
| 100iMHz | Open | Closed | Closed | Open | 1 & 2 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PCI IRQ CONFIGURATION (SLOT 1) |
|------------------------------------------------------------|
| Card | INT/IRQ | JP1 | JP2 |
| type/slot # | | | |
|--------------+------------+----------------+---------------|
| NCR slot 2 | IRQ11/INTA | pins 10 & 11 | pins 7 & 8 |
| | | closed | closed |
|--------------+------------+----------------+---------------|
| Adaptec slot | IRQ11/INTA | pins 10 & 11 | pins 7 & 8 |
| 2 | | closed | closed |
|--------------+------------+----------------+---------------|
| Bus Logic | IRQ11/INTA | pins 10 & 11 | pins 7 & 8 |
| SCSI slot 2 | | closed | closed |
|--------------+------------+----------------+---------------|
| SCSI slot 1 | IRQ9/INTB | pins 8 & 9, 10 | pins 2 & 3, 7 |
| | | & 11 closed | & 8 closed |
|--------------+------------+----------------+---------------|
| SCSI slot 4 | IRQ9/INTC | pins 5 & 6, 10 | pins 2 & 3, 7 |
| | | & 11 closed | & 8 closed |
|--------------+------------+----------------+---------------|
| SCSI slot 1 | IRQ9/INTA | pins 1 & 2, 11 | pins 1 & 2, 8 |
| | | & 12 closed | & 9 closed |
|--------------+------------+----------------+---------------|
| Edge Trigger | IRQ14/INTD | pins 2 & 3 | pins 16 & 17 |
| slot 1 | | closed | closed |
|--------------+------------+----------------+---------------|
| Level | IRQ14/INTD | pins 2 & 3 | pins 17 & 18 |
| Trigger slot | | closed | closed |
| 1 | | | |
+------------------------------------------------------------+