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# HEWLETT-PACKARD COMPANY
HP VECTRA 500 MODEL 520 (TYPE A),
MODEL 525 (TYPE A)
Device Type Mainboard
Processor Pentium
Processor Speed 100/120/133/150/166MHz
Chip Set Unidentified
Video Chip Set Unidentified
Maximum Onboard 192MB (EDO supported) Unified Memory
Memory Architecture (UMA)
Cache 256KB
BIOS Unidentified
Dimensions 275mm x 205mm
I/O Options Floppy drive interface, IDE interfaces (2),
parallel port, PS/2 mouse port, serial ports
(2), cache slot
NPU Options None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| 3.3v power | C1 | PS/2 mouse port | CN5 |
|-------------------+----------+------------------+----------|
| Status panel | C2 | IDE interface 1 | CN6 |
| connector | | | |
|-------------------+----------+------------------+----------|
| Start connector | C3 | IDE interface 2 | CN7 |
|-------------------+----------+------------------+----------|
| 5v power | C4 | Floppy drive | CN8 |
| | | interface | |
|-------------------+----------+------------------+----------|
| VGA port | CN1 | VGA feature | CN9 |
| | | connector | |
|-------------------+----------+------------------+----------|
| Serial port 2 | CN2 | External battery | J1 |
|-------------------+----------+------------------+----------|
| Serial port 1 | CN3 | Cache slot | SL1 |
|-------------------+----------+------------------+----------|
| Parallel port | CN4 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|-------------------------------------+---------+------------|
| » | Keyboard power down enabled | JP4 | Closed |
|---+---------------------------------+---------+------------|
| | Keyboard power down disabled | JP4 | Open |
|---+---------------------------------+---------+------------|
| » | Flash BIOS enabled | SW1/1 | Off |
|---+---------------------------------+---------+------------|
| | Flash BIOS disabled | SW1/1 | On |
|---+---------------------------------+---------+------------|
| » | CMOS memory normal operation | SW1/2 | Off |
|---+---------------------------------+---------+------------|
| | CMOS memory clear | SW1/2 | On |
|---+---------------------------------+---------+------------|
| » | Password normal operation | SW1/3 | Off |
|---+---------------------------------+---------+------------|
| | Password clear | SW1/3 | On |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SIMM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 |
|------------+---------------+---------------+---------------|
| 16MB | (2) 2M x 36 | None | None |
|------------+---------------+---------------+---------------|
| 32MB | (2) 2M x 36 | (2) 2M x 36 | None |
|------------+---------------+---------------+---------------|
| 32MB | (2) 4M x 36 | None | None |
|------------+---------------+---------------+---------------|
| 48MB | (2) 2M x 36 | (2) 2M x 36 | (2) 2M x 36 |
|------------+---------------+---------------+---------------|
| 64MB | (2) 4M x 36 | (2) 4M x 36 | None |
|------------+---------------+---------------+---------------|
| 64MB | (2) 8M x 36 | None | None |
|------------+---------------+---------------+---------------|
| 96MB | (2) 4M x 36 | (2) 4M x 36 | (2) 4M x 36 |
|------------+---------------+---------------+---------------|
| 128MB | (2) 8M x 36 | (2) 8M x 36 | None |
|------------+---------------+---------------+---------------|
| 128MB | (2) 16M x 36 | None | None |
|------------+---------------+---------------+---------------|
| 144MB | (2) 16M x 36 | (2) 2M x 36 | None |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SIMM CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 |
|------------+---------------+---------------+---------------|
| 160MB | (2) 16M x 36 | (2) 2M x 36 | (2) 2M x 36 |
|------------+---------------+---------------+---------------|
| 160MB | (2) 16M x 36 | (2) 4M x 36 | None |
|------------+---------------+---------------+---------------|
| 192MB | (2) 16M x 36 | (2) 4M x 36 | (2) 4M x 36 |
|------------+---------------+---------------+---------------|
| 192MB | (2) 16M x 36 | (2) 8M x 36 | None |
|------------+---------------+---------------+---------------|
| 192MB | (2) 8M x 36 | (2) 8M x 36 | (2) 8M x 36 |
|------------------------------------------------------------|
| Note: Board accepts EDO memory. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | SL1 |
|----------------------------+-------------------------------|
| 256KB | 256KB module installed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Type | J6 |
|-----------------------------+------------------------------|
| » | Synchronous | Pins 2 & 3 closed |
|---+-------------------------+------------------------------|
| | Asynchronous | Pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION |
|------------------------------------------------------------|
| CPU speed | Clock | Multiplier | J7 | SW2/1 | SW2/2 |
| | speed | | | | |
|------------+----------+------------+-------+-------+-------|
| 100MHz | 66MHz | 1.5x | 3 & 4 | Off | Off |
|------------+----------+------------+-------+-------+-------|
| 120MHz | 60MHz | 2x | 1 & 3 | On | Off |
|------------+----------+------------+-------+-------+-------|
| 133MHz | 66MHz | 2x | 3 & 4 | On | Off |
|------------+----------+------------+-------+-------+-------|
| 150MHz | 60MHz | 2.5x | 1 & 3 | On | On |
|------------+----------+------------+-------+-------+-------|
| 166MHz | 66MHz | 2.5x | 3 & 4 | On | On |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+