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# NCR CORPORATION
PC386
Processor 80386DX
Processor Speed 25MHz
Chip Set NCR
Max. Onboard DRAM 8MB
Cache 64KB
BIOS AMI
Dimensions 350mm x 304mm
I/O Options 32-bit external memory card slot
NPU Options 80387/3167
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|--------------+----------+-----------------------+----------|
| Turbo LED | J1 | Power LED & keylock | J8 |
|--------------+----------+-----------------------+----------|
| Reset switch | J2 | External battery | J9 |
|--------------+----------+-----------------------+----------|
| Speaker | J7 | 32-bit external | S1 |
| | | memory card | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper/Switch | Position |
|-------------------------------+---------------+------------|
| » | BIOS type select 27256 | J4 | pins 1 & 2 |
| | | | closed |
|---+---------------------------+---------------+------------|
| | BIOS type select 27128 | J4 | pins 2 & 3 |
| | | | closed |
|---+---------------------------+---------------+------------|
| » | NPU enabled | J5 | pins 1 & 2 |
| | | | closed |
|---+---------------------------+---------------+------------|
| | NPU disabled | J5 | pins 2 & 3 |
| | | | closed |
|---+---------------------------+---------------+------------|
| » | Factory configured - do | SW1/1 | Off |
| | not alter | | |
|---+---------------------------+---------------+------------|
| » | Monitor type select color | SW1/2 | On |
|---+---------------------------+---------------+------------|
| | Monitor type select | SW1/2 | Off |
| | monochrome | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|------------------+--------------------+--------------------|
| 4MB | (36) 411000 | NONE |
|------------------+--------------------+--------------------|
| 8MB | (36) 411000 | (4) 1M x 9 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | J27 |
|----------------------------+-------------------------------|
| 4MB | pins 1 & 2, 3 & 4 closed |
|----------------------------+-------------------------------|
| 8MB | pins 2 & 3, 4 & 5 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 |
|----------------------------+-------------------------------|
| 64KB | (8) 8K x 8 |
+------------------------------------------------------------+