TEXT View Source
# NCR CORPORATION
MODEL 3386-6XXX PC925/PC386
Processor 80386
Processor Speed 25MHz
Chip Set Unidentified
Video Chip Set None
Maximum Onboard Memory 16MB (8MB on external memory card)
Maximum Video Memory None
Cache None
BIOS Unidentified
Dimensions 355mm x 304mm
I/O Options External memory card
NPU Options 80387
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|------------------+----------+-------------------+----------|
| Turbo LED | J1 | External battery | J9 |
|------------------+----------+-------------------+----------|
| Speaker | J7 | External memory | SL1 |
| | | card | |
|------------------+----------+-------------------+----------|
| Power LED & | J8 | | |
| keylock | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|---------------------------------------+-------+------------|
| | Jumper not used | J2 | N/A |
|---+-----------------------------------+-------+------------|
| » | BIOS type select 27256 | J4 | Pins 1 & 2 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| | BIOS type select 27128 | J4 | Pins 2 & 3 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| » | NPU installed | J5 | Pins 1 & 2 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| | NPU not installed | J5 | Pins 2 & 3 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| » | Manufacturing diagnostics loop | SW/1 | Off |
| | disabled | | |
|---+-----------------------------------+-------+------------|
| | Manufacturing diagnostics loop | SW/1 | On |
| | enabled | | |
|---+-----------------------------------+-------+------------|
| | Monitor type select color | SW/2 | On |
|---+-----------------------------------+-------+------------|
| | Monitor type select monochrome | SW/2 | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|----------------+------------------+------------------------|
| 4MB | 411000 | None |
|----------------+------------------+------------------------|
| 8MB | 411000 | (4) 1M x 9 |
|------------------------------------------------------------|
| Note: The location of banks 0 & 1 are unidentified. The |
| number of chips for bank 0 are unidentified. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | J27 |
|----------------------------+-------------------------------|
| 4MB | Pins 1 & 2, 3 & 4 closed |
|----------------------------+-------------------------------|
| 8MB | Pins 2 & 3, 4 & 5 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MISCELLANEOUS TECHINCAL NOTE |
|------------------------------------------------------------|
| The location of all pin 1s are unidentified. |
+------------------------------------------------------------+