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# HEWLETT-PACKARD COMPANY
HP VECTRA 486ST PC Series
Processor 80486DX/80486DX2
Processor Speed 33/66(internal)MHz
Chip Set HP
Max. Onboard DRAM 64MB
Cache None
BIOS HP
Dimensions 275mm x 325mm
I/O Options Bus mouse port, IDE interface, VGA port
NPU Options None
IMG IMG 1
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Switch | Position |
|--------------------------------------+--------+------------|
| » | Factory configured - do not | SW1/2 | Off |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | SW1/3 | Off |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | VGA port enabled | SW1/4 | Off |
|---+----------------------------------+--------+------------|
| | VGA port disabled | SW1/4 | On |
|---+----------------------------------+--------+------------|
| » | BIOS write protect enabled | SW2 | position 2 |
|---+----------------------------------+--------+------------|
| | BIOS write protect disabled | SW2 | position 1 |
| | (BIOS may be upgraded from disk) | | |
|---+----------------------------------+--------+------------|
| » | Password check enabled | SW3/1 | Off |
|---+----------------------------------+--------+------------|
| | Password check disabled | SW3/1 | On |
| | (password clear) | | |
|---+----------------------------------+--------+------------|
| » | CMOS memory normal operation | SW3/2 | Off |
|---+----------------------------------+--------+------------|
| | CMOS memory clear | SW3/2 | On |
|---+----------------------------------+--------+------------|
| » | Security mode disabled (CMOS | SW3/3 | Off |
| | setup may be changed) | | |
|---+----------------------------------+--------+------------|
| | Security mode enabled (CMOS | SW3/3 | On |
| | setup may not be changed) | | |
|------------------------------------------------------------|
| Note:SW1 and SW2 are located on the main board (shown on |
| previous page). |
| |
| SW3 is on the I/O Adapter Board (shown below). |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|------+-------------+-------------+------------+------------|
| 4MB | (2) 512K x | NONE | NONE | NONE |
| | 36 | | | |
|------+-------------+-------------+------------+------------|
| 8MB | (2) 512K x | (2) 512K x | NONE | NONE |
| | 36 | 36 | | |
|------+-------------+-------------+------------+------------|
| 12MB | (2) 512K x | (2) 512K x | (2) 512K x | NONE |
| | 36 | 36 | 36 | |
|------+-------------+-------------+------------+------------|
| 16MB | (2) 512K x | (2) 512K x | (2) 512K x | (2) 512K x |
| | 36 | 36 | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 16MB | (2) 2M x 36 | NONE | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 20MB | (2) 2M x 36 | (2) 512K x | NONE | NONE |
| | | 36 | | |
|------+-------------+-------------+------------+------------|
| 24MB | (2) 2M x 36 | (2) 512K x | (2) 512K x | NONE |
| | | 36 | 36 | |
|------+-------------+-------------+------------+------------|
| 28MB | (2) 2M x 36 | (2) 512K x | (2) 512K x | (2) 512K x |
| | | 36 | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 32MB | (2) 2M x 36 | (2) 2M x 36 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 36MB | (2) 2M x 36 | (2) 2M x 36 | (2) 512K x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 40MB | (2) 2M x 36 | (2) 2M x 36 | (2) 512K x | (2) 512K x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 48MB | (2) 2M x 36 | (2) 2M x 36 | (2) 2M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 52MB | (2) 2M x 36 | (2) 2M x 36 | (2) 2M x | (2) 512K x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 64MB | (2) 2M x 36 | (2) 2M x 36 | (2) 2M x | (2) 2M x |
| | | | 36 | 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 |
|----------------------------+-------------------------------|
| 512KB | NONE |
|----------------------------+-------------------------------|
| 1024KB | (4) 44256 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VRAM SWITCH CONFIGURATION |
|------------------------------------------------------------|
| Size | SW1/1 |
|-------------------------------+----------------------------|
| 512KB | Off |
|-------------------------------+----------------------------|
| 1024KB | On |
+------------------------------------------------------------+
IMG IMG 2