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# DIGITAL EQUIPMENT CORPORATION
PC 386SX CE (P3348)
Processor 80386SX
Processor Speed 20MHz
Chip Set Unidentified
Video Chip Set Unidentified
Maximum Onboard 8MB
Memory
Maximum Video Unidentified
Memory
Cache None
BIOS Unidentified
Dimensions 254mm x 218mm
I/O Options Floppy drive interfaceIDE interface, parallel
port, serial ports (2), VGA feature
connector, VGA port, TTL video port, riser
slot
NPU Options 80387SX
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|--------------------+----------+-----------------+----------|
| Floppy drive | J2 | VGA port | J8 |
| interface | | | |
|--------------------+----------+-----------------+----------|
| IDE interface | J3 | TTL video port | J9 |
|--------------------+----------+-----------------+----------|
| Parallel port | J5 | Front panel | J20 |
| | | connector | |
|--------------------+----------+-----------------+----------|
| Serial port 2 | J6 | VGA feature | JY1 |
| | | connector | |
|--------------------+----------+-----------------+----------|
| Serial port 1 | J7 | Riser slot | SL1 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|-------------------------------------+-------+--------------|
| » | Normal mode enabled | SW1/1 | Off |
|---+---------------------------------+-------+--------------|
| | Manufacturing mode enabled | SW1/1 | On |
|---+---------------------------------+-------+--------------|
| » | Normal mode enabled | SW1/2 | Off |
|---+---------------------------------+-------+--------------|
| | Burn in mode enabled | SW1/2 | On |
|---+---------------------------------+-------+--------------|
| | Video speed select fast | SW1/3 | Off |
|---+---------------------------------+-------+--------------|
| | Video speed select slow | SW1/3 | On |
|---+---------------------------------+-------+--------------|
| | Monitor type select monochrome | SW1/4 | Off |
|---+---------------------------------+-------+--------------|
| | Monitor type select color | SW1/4 | On |
|---+---------------------------------+-------+--------------|
| | On board video enabled | SW1/5 | On |
|---+---------------------------------+-------+--------------|
| | On board video disabled | SW1/5 | Off |
|---+---------------------------------+-------+--------------|
| | Floppy drive interface enabled | SW1/6 | On |
|---+---------------------------------+-------+--------------|
| | Floppy drive interface disabled | SW1/6 | Off |
|---+---------------------------------+-------+--------------|
| | IDE interface enabled | SW1/7 | On |
|---+---------------------------------+-------+--------------|
| | IDE interface disabled | SW1/7 | Off |
|---+---------------------------------+-------+--------------|
| » | Factory configured - do not | SW1/8 | Unidentified |
| | alter | | |
|---+---------------------------------+-------+--------------|
| » | Factory configured - do not | SW2/6 | Unidentified |
| | alter | | |
|---+---------------------------------+-------+--------------|
| » | Clock signal to NPU equals CPU | W2 | Pins 2 & 3 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| | Clock signal to NPU does not | W2 | Pins 1 & 2 |
| | equal CPU | | closed |
|---+---------------------------------+-------+--------------|
| | NPU synchronous with CPU | W3 | Closed |
|---+---------------------------------+-------+--------------|
| | NPU asynchronous with CPU | W3 | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|------------------+--------------------+--------------------|
| 1MB | (1) 256K x 36 | None |
|------------------+--------------------+--------------------|
| 2MB | (1) 256K x 36 | (1) 256K x 36 |
|------------------+--------------------+--------------------|
| 4MB | (1) 1M x 36 | None |
|------------------+--------------------+--------------------|
| 5MB | (1) 256K x 36 | (1) 1M x 36 |
|------------------+--------------------+--------------------|
| 8MB | (1) 1M x 36 | (1) 1M x 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VIDEO SELECTION (VGA CONTROLLER ONLY ADAPTER IN SYSTEM) |
|------------------------------------------------------------|
| Monitor | SW2/1 | SW2/2 | SW2/3 | SW2/4 | SW2/5 |
|--------------+---------+---------+---------+-------+-------|
| On | Off | Off | On | Off | Off |
|--------------+---------+---------+---------+-------+-------|
| ED 350 line | Off | On | On | Off | Off |
|--------------+---------+---------+---------+-------+-------|
| ED 200 line | On | On | On | Off | Off |
|--------------+---------+---------+---------+-------+-------|
| CD 80 x 25 | Off | Off | Off | On | Off |
|--------------+---------+---------+---------+-------+-------|
| CD 40 x 25 | On | Off | Off | On | Off |
|--------------+---------+---------+---------+-------+-------|
| Analog | N/A | N/A | N/A | N/A | On |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VIDEO SELECTION (VGA CONTROLLER AS PRIMARY ADAPTER) |
|------------------------------------------------------------|
| Primary | Secondary |SW2/1|SW2/2|SW2/3|SW2/4|SW2/5|
|--------------+---------------+-----+-----+-----+-----+-----|
| Monochrome | Color 80 x 25 | Off | Off | On | Off | Off |
| | or none | | | | | |
|--------------+---------------+-----+-----+-----+-----+-----|
| Monochrome | Color 40 x 25 | On | Off | On | Off | Off |
| | or none | | | | | |
|--------------+---------------+-----+-----+-----+-----+-----|
| Enhanced 350 | Monochrome or | Off | On | On | Off | Off |
| line | none | | | | | |
|--------------+---------------+-----+-----+-----+-----+-----|
| Enhanced 200 | Monochrome or | On | On | On | Off | Off |
| line | none | | | | | |
|--------------+---------------+-----+-----+-----+-----+-----|
|Color 80 x 25 | Monochrome or | Off | Off | Off | On | Off |
| | none | | | | | |
|--------------+---------------+-----+-----+-----+-----+-----|
|Color 40 x 25 | Monochrome or | On | Off | Off | On | Off |
| | none | | | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VIDEO SELECTION(VGA CONTROLLER AS SECONDARY ADAPTER) |
|------------------------------------------------------------|
| Primary | Secondary |SW2/1|SW2/2|SW2/3|SW2/4|SW2/5|
|-------------+----------------+-----+-----+-----+-----+-----|
|Color 80 x 25| Monochrome | Off | On | Off | On | Off |
|-------------+----------------+-----+-----+-----+-----+-----|
|Color 40 x 25| Monochrome | On | On | Off | On | Off |
|-------------+----------------+-----+-----+-----+-----+-----|
| Monochrome | Enhanced 350 | Off | Off | On | On | Off |
| | line | | | | | |
|-------------+----------------+-----+-----+-----+-----+-----|
| Monochrome | Enhanced 200 | On | Off | On | On | Off |
| | line | | | | | |
|-------------+----------------+-----+-----+-----+-----+-----|
| Monochrome | Color 80 x 25 | Off | On | On | On | Off |
|-------------+----------------+-----+-----+-----+-----+-----|
| Monochrome | Color 40 x 25 | On | On | On | On | Off |
+------------------------------------------------------------+