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# HEWLETT-PACKARD COMPANY
HP VECTRA RS PC Series
Processor 80386DX
Processor Speed 16/20/25/33MHz
Chip Set HP
Max. Onboard DRAM 16MB
Cache None
BIOS HP
Dimensions 320mm x 159mm
I/O Options 32-bit local bus backplane connector
NPU Options 80387/3167
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location |
|-------------------------------+----------------------------|
| 32-bit local bus backplane | CN1 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Switch | Position |
|--------------------------------------+---------+-----------|
| » | NPU disabled | SW1/1 | On |
|----+---------------------------------+---------+-----------|
| | NPU enabled | SW1/1 | Off |
|----+---------------------------------+---------+-----------|
| » | Bus speed select asynchronous | SW1/2 | On |
| | with CPU | | |
|----+---------------------------------+---------+-----------|
| | Bus speed select synchronous | SW1/2 | Off |
| | with CPU | | |
|----+---------------------------------+---------+-----------|
| » | Base memory size select 640KB | SW1/3 | On |
|----+---------------------------------+---------+-----------|
| | Base memory size select 512KB | SW1/3 | Off |
|----+---------------------------------+---------+-----------|
| » | Optional ROM enabled (see note) | SW1/4 | On |
|----+---------------------------------+---------+-----------|
| | Optional ROM disabled (see | SW1/4 | Off |
| | note) | | |
|----+---------------------------------+---------+-----------|
| » | Factory configured - do not | SW1/5 | On |
| | alter | | |
|----+---------------------------------+---------+-----------|
| » | Factory configured - do not | SW1/6 | On |
| | alter | | |
|------------------------------------------------------------|
| Note:Leave SW1/switch 4 in the closed position. Boards |
| with a serial number less than 2947 will not boot if |
| SW1/switch 4 is in the open position and there are no |
| Optional ROMs installed. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|------+-------------+-------------+------------+------------|
| 1MB | (4) 256K x | NONE | NONE | NONE |
| | 9 | | | |
|------+-------------+-------------+------------+------------|
| 2MB | (4) 256K x | (4) 256K x | NONE | NONE |
| | 9 | 9 | | |
|------+-------------+-------------+------------+------------|
| 4MB | (4) 256K x | (4) 256K x | (4) 256K x | (4) 256K x |
| | 9 | 9 | 9 | 9 |
|------+-------------+-------------+------------+------------|
| 4MB | (4) 1M x 9 | NONE | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 8MB | (4) 1M x 9 | (4) 1M x 9 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 10MB | (4) 256K x | (4) 256K x | (4) 1M x 9 | (4) 1M x 9 |
| | 9 | 9 | | |
|------+-------------+-------------+------------+------------|
| 16MB | (4) 1M x 9 | (4) 1M x 9 | (4) 1M x 9 | (4) 1M x 9 |
+------------------------------------------------------------+