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# PACKARD BELL
PBVX88
Processor NEC V40 (Intregrated 8088-compatible CPU and
system controller)
Processor 8MHz
Speed
Chip Set NEC
Max. onboard 640KB
DRAM
Cache None
BIOS Phoenix
Dimensions 330mm x 330mm
I/O Options Floppy drive interface, parallel port, serial
port, video port
NPU Options 8087
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|---------------+----------+----------------------+----------|
| Parallel port | J7 | Speaker | J12 |
|---------------+----------+----------------------+----------|
| Serial port | J8 | Floppy drive | J13 |
| | | interface | |
|---------------+----------+----------------------+----------|
| Video port | J9 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Switch | Position |
|-----------------------------------+-----------+------------|
| » | Factory test mode disabled | SW1/1 | Off |
|---+-------------------------------+-----------+------------|
| | Factory test mode enabled | SW1/1 | On |
|---+-------------------------------+-----------+------------|
| » | NPU disabled | SW1/2 | On |
|---+-------------------------------+-----------+------------|
| | NPU enabled | SW1/2 | Off |
|---+-------------------------------+-----------+------------|
| » | CPU speed select fast | SW1/8 | On |
|---+-------------------------------+-----------+------------|
| | CPU speed select slow | SW1/8 | Off |
|---+-------------------------------+-----------+------------|
| » | Serial port enabled | SW1/10 | On |
|---+-------------------------------+-----------+------------|
| | Serial port disabled | SW1/10 | Off |
|---+-------------------------------+-----------+------------|
| » | Parallel port enabled | SW1/11 | On |
|---+-------------------------------+-----------+------------|
| | Parallel port disabled | SW1/11 | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | SW1/3 | SW1/4 |
|-------+--------------+----------+----------+-------+-------|
| 256KB | (9) 256K x 9 | NONE | NONE | On | On |
|-------+--------------+----------+----------+-------+-------|
| 512KB | (9) 256K x 9 | (9) 256K | NONE | Off | On |
| | | x 9 | | | |
|-------+--------------+----------+----------+-------+-------|
| 640KB | (9) 256K x 9 | (9) 256K | (9) 256K | Off | Off |
| | | x 9 | x 9 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| ONBOARD VIDEO CONFIGURATION |
|------------------------------------------------------------|
| Mode | Resolution | SW1/5 | SW1/6 | SW1/9 |
|------------+-------------+-----------+----------+----------|
| Enabled | Monochrome | Off | Off | On |
|------------+-------------+-----------+----------+----------|
| Enabled | 40 x 25 CGA | Off | On | On |
|------------+-------------+-----------+----------+----------|
| Enabled | 80 x 25 CGA | On | Off | On |
|------------+-------------+-----------+----------+----------|
| Disabled | N/A | N/A | N/A | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| ONBOARD FLOPPY DRIVE CONTROLLER CONFIGURATION |
|------------------------------------------------------------|
| Mode | Drives Installed | SW1/7 | SW1/12 |
|---------------+------------------+------------+------------|
| Enabled | A: | On | On |
|---------------+------------------+------------+------------|
| Enabled | A: & B: | Off | On |
|---------------+------------------+------------+------------|
| Disabled | N/A | N/A | Off |
+------------------------------------------------------------+