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# NCR CORPORATION
MODEL 3279-0XXX PC8 (REV. 03-92)
Processor 80286
Processor Speed 6/8MHz
Chip Set Unidentified
Video Chip Set None
Maximum Onboard Memory 14MB (on external memory card)
Maximum Video Memory None
Cache None
BIOS Unidentified
Dimensions 355mm x 304mm
I/O Options External memory card
NPU Options 80287
(IMG) IMG 1
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|-------------------------------------+-------+--------------|
| » | Monitor type select color | SW1 | On |
|---+---------------------------------+-------+--------------|
| | Monitor type select monochrome | SW1 | Off |
|---+---------------------------------+-------+--------------|
| » | Power on frequency speed select | SW2 | On |
| | 8MHz | | |
|---+---------------------------------+-------+--------------|
| | Power on frequency speed select | SW2 | Off |
| | 6MHz | | |
|---+---------------------------------+-------+--------------|
| » | Number of BIOS installed 2 | U101 | Pins 1 & 8, |
| | installed | | 2 & 7 closed |
|---+---------------------------------+-------+--------------|
| | Number of BIOS installed 4 | U101 | Pins 3 & 6, |
| | installed | | 4 & 5 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 |
|--------------+---------------+--------------+--------------|
| 256KB | 256KB | None | None |
|--------------+---------------+--------------+--------------|
| 512KB | 256KB | 256KB | None |
|--------------+---------------+--------------+--------------|
| 640KB | 256KB | 256KB | 128KB |
|------------------------------------------------------------|
| Note: The size of the DRAM chips are unidentified. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | P17 | P18 |
|------------------+--------------------+--------------------|
| 256KB | Pins 1 & 2 closed | Pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| 512KB | Pins 1 & 2 closed | Pins 2 & 3 closed |
|------------------+--------------------+--------------------|
| 640KB | Pins 2 & 3 closed | Pins 2 & 3 closed |
+------------------------------------------------------------+
(IMG) IMG 2
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|-------------------------------------+-------+--------------|
| | Jumper information unavailable | P1 | Unidentified |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Note: The size of the DRAM chips are unidentified. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM SWITCH CONFIGURATION |
|------------------------------------------------------------|
| Size | SW1/1 | SW1/2 | SW1/3 | SW1/4 | SW1/5 |
|----------+---------+---------+---------+---------+---------|
| None | On | On | On | Off | On |
|----------+---------+---------+---------+---------+---------|
| 0.5MB | On | On | On | Off | Off |
|----------+---------+---------+---------+---------+---------|
| 1.0MB | On | On | Off | On | On |
|----------+---------+---------+---------+---------+---------|
| 1.5MB | On | On | Off | On | Off |
|----------+---------+---------+---------+---------+---------|
| 2.0MB | On | On | Off | Off | On |
|----------+---------+---------+---------+---------+---------|
| 2.5MB | On | On | Off | Off | Off |
|----------+---------+---------+---------+---------+---------|
| 3.0MB | On | Off | On | On | On |
|----------+---------+---------+---------+---------+---------|
| 3.5MB | On | Off | On | On | Off |
|----------+---------+---------+---------+---------+---------|
| 4.0MB | On | Off | On | Off | On |
|----------+---------+---------+---------+---------+---------|
| 4.5MB | On | Off | On | Off | Off |
|----------+---------+---------+---------+---------+---------|
| 5.0MB | On | Off | Off | On | On |
|----------+---------+---------+---------+---------+---------|
| 5.5MB | On | Off | Off | On | Off |
|----------+---------+---------+---------+---------+---------|
| 6.0MB | On | Off | Off | Off | On |
|----------+---------+---------+---------+---------+---------|
| 6.5MB | On | Off | Off | Off | Off |
|----------+---------+---------+---------+---------+---------|
| 7.0MB | Off | On | On | On | On |
|----------+---------+---------+---------+---------+---------|
| 7.5MB | Off | On | On | On | Off |
|----------+---------+---------+---------+---------+---------|
| 8.0MB | Off | On | On | Off | On |
|----------+---------+---------+---------+---------+---------|
| 8.5MB | Off | On | On | Off | Off |
|----------+---------+---------+---------+---------+---------|
| 9.0MB | Off | On | Off | On | On |
|----------+---------+---------+---------+---------+---------|
| 9.5MB | Off | On | Off | On | Off |
|----------+---------+---------+---------+---------+---------|
| 10.0MB | Off | On | Off | Off | On |
|----------+---------+---------+---------+---------+---------|
| 10.5MB | Off | On | Off | Off | Off |
|----------+---------+---------+---------+---------+---------|
| 11.0MB | Off | Off | On | On | On |
|----------+---------+---------+---------+---------+---------|
| 11.5MB | Off | Off | On | On | Off |
|----------+---------+---------+---------+---------+---------|
| 12.0MB | Off | Off | On | Off | On |
|----------+---------+---------+---------+---------+---------|
| 12.5MB | Off | Off | On | Off | Off |
|----------+---------+---------+---------+---------+---------|
| 13.0MB | Off | Off | Off | On | On |
|----------+---------+---------+---------+---------+---------|
| 13.5MB | Off | Off | Off | On | Off |
|----------+---------+---------+---------+---------+---------|
| 14.0MB | Off | Off | Off | Off | On |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM SWITCH CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Size | SW2/1 | SW2/2 | SW2/3 | SW2/4 | SW2/5 |
|----------+---------+---------+---------+---------+---------|
| None | On | On | On | Off | Off |
|----------+---------+---------+---------+---------+---------|
| 0.5MB | On | On | Off | On | On |
|----------+---------+---------+---------+---------+---------|
| 1.0MB | On | On | Off | On | Off |
|----------+---------+---------+---------+---------+---------|
| 1.5MB | On | On | Off | Off | On |
|----------+---------+---------+---------+---------+---------|
| 2.0MB | On | On | Off | Off | Off |
|----------+---------+---------+---------+---------+---------|
| 2.5MB | On | Off | On | On | On |
|----------+---------+---------+---------+---------+---------|
| 3.0MB | On | Off | On | On | Off |
|----------+---------+---------+---------+---------+---------|
| 3.5MB | On | Off | On | Off | On |
|----------+---------+---------+---------+---------+---------|
| 4.0MB | On | Off | On | Off | Off |
|----------+---------+---------+---------+---------+---------|
| 4.5MB | On | Off | Off | On | On |
|----------+---------+---------+---------+---------+---------|
| 5.0MB | On | Off | Off | On | Off |
|----------+---------+---------+---------+---------+---------|
| 5.5MB | On | Off | Off | Off | On |
|----------+---------+---------+---------+---------+---------|
| 6.0MB | On | Off | Off | Off | Off |
|----------+---------+---------+---------+---------+---------|
| 6.5MB | Off | On | On | On | On |
|----------+---------+---------+---------+---------+---------|
| 7.0MB | Off | On | On | On | Off |
|----------+---------+---------+---------+---------+---------|
| 7.5MB | Off | On | On | Off | On |
|----------+---------+---------+---------+---------+---------|
| 8.0MB | Off | On | On | Off | Off |
|----------+---------+---------+---------+---------+---------|
| 8.5MB | Off | On | Off | On | On |
|----------+---------+---------+---------+---------+---------|
| 9.0MB | Off | On | Off | On | Off |
|----------+---------+---------+---------+---------+---------|
| 9.5MB | Off | On | Off | Off | On |
|----------+---------+---------+---------+---------+---------|
| 10.0MB | Off | On | Off | Off | Off |
|----------+---------+---------+---------+---------+---------|
| 10.5MB | Off | Off | On | On | On |
|----------+---------+---------+---------+---------+---------|
| 11.0MB | Off | Off | On | On | Off |
|----------+---------+---------+---------+---------+---------|
| 11.5MB | Off | Off | On | Off | On |
|----------+---------+---------+---------+---------+---------|
| 12.0MB | Off | Off | On | Off | Off |
|----------+---------+---------+---------+---------+---------|
| 12.5MB | Off | Off | Off | On | On |
|----------+---------+---------+---------+---------+---------|
| 13.0MB | Off | Off | Off | On | Off |
|----------+---------+---------+---------+---------+---------|
| 13.5MB | Off | Off | Off | Off | On |
|----------+---------+---------+---------+---------+---------|
| 14.0MB | N/A | N/A | N/A | N/A | N/A |
+------------------------------------------------------------+