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# HEWLETT-PACKARD COMPANY
VECTRA 486/U
Processor 80486SX/80487SX/80486DX/80486DX2
Processor 25/33/50(internal)/66(internal)MHz
Speed
Chip Set Unidentified
Max. Onboard 32MB
DRAM
Cache 128KB (location unknown)
BIOS Unidentified
Dimensions 355mm x 304mm
I/O Options Bus mouse port, floppy drive interface, IDE
interface, parallel port, serial ports (2), VGA
port, VESA feature connector
NPU Options None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| IDE interface LED | CN1 | Serial port 2 | CN7 |
|-------------------+----------+------------------+----------|
| Floppy drive | CN2 | Serial port 1 | CN8 |
| interface | | | |
|-------------------+----------+------------------+----------|
| Hard drive | CN3 | VESA feature | CN9 |
| interface | | connector | |
|-------------------+----------+------------------+----------|
| Speaker | CN4 | Parallel port | CN10 |
|-------------------+----------+------------------+----------|
| External battery | CN5 | Control panel | CN11 |
|-------------------+----------+------------------+----------|
| VGA port | CN6 | BIOS lock switch | SW1 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Switch | Position |
|-----------------------------------+-------------+----------|
| Factory configured - do not alter | SW4/switch | Off |
| | 2 | |
|-----------------------------------+-------------+----------|
| Factory configured - do not alter | SW4/switch | Off |
| | 3 | |
|-----------------------------------+-------------+----------|
| Built in video disabled | SW4/switch | On |
| | 4 | |
|-----------------------------------+-------------+----------|
| Built in video enabled | SW4/switch | Off |
| | 4 | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION-- INTEL CPU |
|------------------------------------------------------------|
| Speed | SW3/switch 1 | SW3/switch 2 | SW3/switch 3 |
|------------+---------------+--------------+----------------|
| 25MHz | Off | Off | Off |
|------------+---------------+--------------+----------------|
| 33MHz | On | On | On |
|------------+---------------+--------------+----------------|
| 50iMHz | On | On | Off |
|------------+---------------+--------------+----------------|
| 66iMHz | On | On | On |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION-- HEWLETT PACKARD CPU |
|------------------------------------------------------------|
| Speed | SW3/switch 1 | SW3/switch 2 | SW3/switch 3 |
|------------+---------------+--------------+----------------|
| 25MHz | On | Off | Off |
|------------+---------------+--------------+----------------|
| 33MHz | On | Off | On |
|------------+---------------+--------------+----------------|
| 50iMHz | On | Off | Off |
|------------+---------------+--------------+----------------|
| 66iMHz | On | Off | On |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 4 |
|------+-------------+-------------+------------+------------|
| 4MB | (2) 512K x | NONE | NONE | NONE |
| | 36 | | | |
|------+-------------+-------------+------------+------------|
| 8MB | (2) 512K x | (2) 512K x | NONE | NONE |
| | 36 | 36 | | |
|------+-------------+-------------+------------+------------|
| 16MB | (2) 512K x | (2) 512K x | (2) 512K x | (2) 512K x |
| | 36 | 36 | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 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) 2M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 48MB | (2) 2M x 36 | (2) 8M x 36 | (2) 8M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 52MB | (2) 2M x 36 | (2) 2M x 36 | (2) 2M x | (2) 2M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 64MB | (2) 2M x 36 | (2) 2M x 36 | (2) 2M x | (2) 2M x |
| | | | 36 | 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PASSWORD AND CONFIGURATION SWITCHES |
|------------------------------------------------------------|
| SW2 | Function | Closed | Open |
|-----+----------------+-----------------+-------------------|
| 1 | Clear | Clear CMOS | Retain CMOS |
| | configuration | | |
|-----+----------------+-----------------+-------------------|
| 2 | Erase power-on | Erase password | Retain password |
| | password | | |
|-----+----------------+-----------------+-------------------|
| 3 | Lock | No | Configuration can |
| | configuration | configuration | change |
| | | change | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VIDEO CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | SW4/1 |
|--------------+---------------+---------------+-------------|
| 512KB | (2) 256K x 4 | NONE | OFF |
|--------------+---------------+---------------+-------------|
| 1MB | (2) 256K x 4 | (2) 256K x 4 | ON |
+------------------------------------------------------------+