TEXT View Source
# UNIDENTIFIED
386SX-S NON CACHE MAINBOARD MODEL 3
Processor 80386SX/CX486SLC
Processor Speed 25/33/40MHz
Chip Set Unidentified
Max. Onboard DRAM 16MB
Cache None
BIOS AMI
Dimensions 220mm x 220mm
I/O Options None
NPU Options 80387SX
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|------------------+----------+-------------------+----------|
| External battery | JP1 | Turbo LED | JP7 |
|------------------+----------+-------------------+----------|
| Turbo switch | JP5 | Power LED & | JP8 |
| | | keylock | |
|------------------+----------+-------------------+----------|
| Reset switch | JP6 | Speaker | JP9 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|------------------------------------+--------+--------------|
| » | Monitor type select color | JP3 | Closed |
|---+--------------------------------+--------+--------------|
| | Monitor type select monochrome | JP3 | Open |
|---+--------------------------------+--------+--------------|
| » | NPU synchronous with CPU | JP4 | pins 1 & 2 |
| | | | closed |
|---+--------------------------------+--------+--------------|
| | NPU asynchronous with CPU | JP4 | pins 2 & 3 |
| | | | closed |
|---+--------------------------------+--------+--------------|
| » | CPU speed select 40MHz | JP10 | pins 1 & 2 |
| | | | closed |
|---+--------------------------------+--------+--------------|
| | CPU speed select 33MHz | JP10 | pins 2 & 3 |
| | | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|------------------+--------------------+--------------------|
| 512KB | (2) 256K x 9 | NONE |
|------------------+--------------------+--------------------|
| 1MB | (2) 256K x 9 | (2) 256K x 9 |
|------------------+--------------------+--------------------|
| 2MB | (2) 1M x 9 | NONE |
|------------------+--------------------+--------------------|
| 4MB | (2) 1M x 9 | (2) 1M x 9 |
|------------------+--------------------+--------------------|
| 8MB | (2) 4M x 9 | NONE |
|------------------+--------------------+--------------------|
| 16MB | (2) 4M x 9 | (2) 4M x 9 |
+------------------------------------------------------------+