PACKARD BELL

PBVX588

Processor

NEC V40 (Integrated 8088-compatible CPU and system controller)

Processor Speed

8MHz

Chip Set

NEC

Max. Onboard DRAM

640KB

SRAM Cache

None

BIOS

Award

Dimensions

355mm x 305mm

I/O Options

Parallel port, serial port, video port

NPU Options

8087

CONNECTIONS

Purpose

Location

Purpose

Location

Parallel port

P7

Speaker

P12

Serial port

P8

Reset

P13

Video port

P9

Keylock & power LED

P14

Floppy drive interface

P11

   

USER CONFIGURABLE SETTINGS

Function

Jumper/Switch

Position

»

Monitor type select color

TOG

Left

 

Monitor type select monochrome

TOG

Right

»

Factory test mode disabled

SW1/1

Off

 

Factory test mode enabled

SW1/1

On

»

NPU disabled

SW1/2

On

 

NPU enabled

SW1/2

Off

»

System speed select fast (8MHz)

SW1/8

On

 

System speed select slow (5.5 MHz)

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

FLOPPY DRIVE INTERFACE CONFIGURATION

Mode

Drives Installed

SW1/7

SW1/12

»

Enabled

A:

On

On

 

Enabled

A: & B:

Off

On

 

Disabled

N/A

N/A

Off

ONBOARD VIDEO CONFIGURATION

Mode

SW1/5

SW1/6

SW1/9

 

Monochrome

Off

Off

On

 

40x25 CGA

Off

On

On

»

80x25 CGA

On

Off

On

 

External EGA card

On

On

Off

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

SW1/3

SW1/4

256KB

(8) 41256

NONE

NONE

NONE

On

On

512KB

(8) 41256

(8) 41256

NONE

NONE

Off

On

576KB

(8) 41256

(8) 41256

(2) 4464

NONE

On

Off

640KB

(8) 41256

(8) 41256

(2) 4464

(2) 4464

Off

Off

Note:Parity sockets P1, P2, P3, and P4 are not used and should be left open. DRAM banks are soldered to the board, and should not be altered.