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# ASUS COMPUTER INTERNATIONAL
ISA-386C
Processor 80386DX
Processor Speed 33/40MHz
Chip Set SIS
Max. Onboard DRAM 32MB
Cache 64KB
BIOS AMI/Award
Dimensions 330mm x 218mm
I/O Options 32-bit external memory card
NPU Options 80387/3167
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| External battery | CON1 | Turbo switch | CON5 |
|-------------------+----------+------------------+----------|
| Speaker | CON2 | Reset switch | CON6 |
|-------------------+----------+------------------+----------|
| Power LED & | CON3 | 32-bit external | S1 |
| keylock | | memory card | |
|-------------------+----------+------------------+----------|
| Turbo LED | CON4 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+--------+------------|
| » | Battery select external | JP1 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | Battery select internal | JP1 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | Monitor type select | JP2 | pins 1 & 2 |
| | EGA/VGA/monochrome | | closed |
|---+----------------------------------+--------+------------|
| | Monitor type select CGA | JP2 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | Power good signal detect from | JP3 | pins 2 & 3 |
| | power supply | | closed |
|---+----------------------------------+--------+------------|
| | Power good signal detect from | JP3 | pins 1 & 2 |
| | board | | closed |
|---+----------------------------------+--------+------------|
| » | NPU mode select asynchronous | JP4 | pins 1 & 2 |
| | with CPU | | closed |
|---+----------------------------------+--------+------------|
| | NPU mode select synchronous with | JP4 | pins 2 & 3 |
| | CPU | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|-------+---------------+------------+------------+----------|
| 1MB | (4) 256K x 9 | NONE | NONE | NONE |
|-------+---------------+------------+------------+----------|
| 2MB | (4) 256K x 9 | (4) 256K x | NONE | NONE |
| | | 9 | | |
|-------+---------------+------------+------------+----------|
| 4MB | (4) 1M x 9 | NONE | NONE | NONE |
|-------+---------------+------------+------------+----------|
| 5MB | (4) 256K x 9 | (4) 1M x 9 | NONE | NONE |
|-------+---------------+------------+------------+----------|
| 6MB | (4) 256K x 9 | (4) 256K x | (4) 1M x 9 | NONE |
| | | 9 | | |
|-------+---------------+------------+------------+----------|
| 8MB | (4) 1M x 9 | (4) 1M x 9 | NONE | NONE |
|-------+---------------+------------+------------+----------|
| 9MB | (4) 256K x 9 | (4) 1M x 9 | (4) 1M x 9 | NONE |
|-------+---------------+------------+------------+----------|
| 10MB | (4) 256K x 9 | (4) 256K x | (4) 1M x 9 | (4) 1M x |
| | | 9 | | 9 |
|-------+---------------+------------+------------+----------|
| 12MB | (4) 1M x 9 | (4) 1M x 9 | (4) 1M x 9 | NONE |
|-------+---------------+------------+------------+----------|
| 16MB | (4) 1M x 9 | (4) 1M x 9 | (4) 1M x 9 | (4) 1M x |
| | | | | 9 |
|-------+---------------+------------+------------+----------|
| 16MB | (4) 4M x 9 | NONE | NONE | NONE |
|-------+---------------+------------+------------+----------|
| 20MB | (4) 1M x 9 | (4) 4M x 9 | NONE | NONE |
|-------+---------------+------------+------------+----------|
| 24MB | (4) 1M x 9 | (4) 1M x 9 | (4) 4M x 9 | NONE |
|-------+---------------+------------+------------+----------|
| 32MB | (4) 4M x 9 | (4) 4M x 9 | NONE | NONE |
|-------+---------------+------------+------------+----------|
| 48MB | (4) 4M x 9 | (4) 4M x 9 | (4) 4M x 9 | NONE |
|-------+---------------+------------+------------+----------|
| 64MB | (4) 4M x 9 | (4) 4M x 9 | (4) 4M x 9 | (4) 4M x |
| | | | | 9 |
|------------------------------------------------------------|
| Note:Banks 2 & 3 are used when a 32-bit external memory |
| card is installed at S1. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | TAG |
|------------------+--------------------+--------------------|
| 64KB | (8) 16K x 4 | (2) 16K x 4 |
+------------------------------------------------------------+