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# GIGA-BYTE TECHNOLOGY CO., LTD
386-40PM
Processor 80386DX
Processor Speed 33/40MHz
Chip Set Unidentified
Max. Onboard DRAM 32MB
Cache 64/128/256KB
BIOS AMI
Dimensions 254mm x 218mm
I/O Options None
NPU Options 80387DX
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|---------------------+----------+----------------+----------|
| External battery | J1 | Turbo switch | JP11 |
|---------------------+----------+----------------+----------|
| Power LED & keylock | J18 | Turbo LED | JP12 |
|---------------------+----------+----------------+----------|
| Speaker | J19 | Reset switch | SW1 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|------------------------------------+--------+--------------|
| » | I/O bus speed select ATCLK/4 | JP2 | Closed |
|---+--------------------------------+--------+--------------|
| | I/O bus speed select ATCLK/5 | JP2 | Open |
|---+--------------------------------+--------+--------------|
| » | CMOS memory normal operation | JP3 | pins 2 & 3 |
| | | | closed |
|---+--------------------------------+--------+--------------|
| | CMOS memory clear | JP3 | pins 1 & 2 |
| | | | closed |
|---+--------------------------------+--------+--------------|
| » | Monitor type select CGA | JP4 | Closed |
|---+--------------------------------+--------+--------------|
| | Monitor type select all others | JP4 | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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 |
|------------------+--------------------+--------------------|
| 8MB | (4) 1M x 9 | (4) 1M x 9 |
|------------------+--------------------+--------------------|
| 16MB | (4) 4M x 9 | NONE |
|------------------+--------------------+--------------------|
| 32MB | (4) 4M x 9 | (4) 4M x 9 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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 | JP10 | JP16 | JP17 |
|---------+----------+-------------------+---------+---------|
| 64KB | Open | pins 2 & 3 closed | Open | Open |
|---------+----------+-------------------+---------+---------|
| 128KB | Closed | pins 1 & 2 closed | Closed | Open |
|---------+----------+-------------------+---------+---------|
| 256KB | Closed | pins 2 & 3 closed | Closed | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | JP1 | JP5 | JP13 |
|---------------+--------------+--------------+--------------|
| 80386DX | Open | Open | Open |
|---------------+--------------+--------------+--------------|
| CX486DLC | Closed | Closed | Closed |
+------------------------------------------------------------+