HEWLETT-PACKARD COMPANY

HP VECTRA QS/16 & HP VECTRA QS/20

Processor

80386DX

Processor Speed

16/20MHz

Chip Set

HP

Max. Onboard DRAM

8MB (16MB with optional memory module)

Cache

None

BIOS

HP

Dimensions

334mm x 128mm

I/O Options

16-bit proprietary backplane ports (2), 8MB memory module (Part # HP D1440A)

NPU Options

80387

CONNECTIONS

Purpose

Location

16-bit proprietary backplane ports

CN1

USER CONFIGURABLE SETTINGS

Function

Switch

Position

»

NPU enabled

SW1/1

Off

 

NPU disabled

SW1/1

On

»

Bus speed select asynchronous (8MHz)

SW1/2

On

 

Bus speed select synchronous with CPU QS/16=8MHz, QS/20=10MHz

SW1/2

Off

»

Base memory size select 640KB

SW1/3

On

 

Base memory size select 512KB

SW1/3

Off

»

Optional ROM enabled

SW1/4

On

 

Optional ROM disabled

SW1/4

Off

»

Factory configured - do not alter

SW1/5

On

»

NPU mode select synchronous with CPU

SW1/6

On

 

NPU mode select asynchronous with CPU

SW1/6

Off

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

1MB

(4) 256K x 9

NONE

NONE

NONE

2MB

(4) 256K x 9

(4) 256K x 9

NONE

NONE

4MB

(4) 256K x 9

(4) 256K x 9

(4) 256K x 9

(4) 256K x 9

4MB

(4) 1M x 9

NONE

NONE

NONE

8MB

(4) 1M x 9

(4) 1M x 9

NONE

NONE

10MB

(4) 256K x 9

(4) 256K x 9

(4) 1M x 9

(4) 1M x 9

16MB

(4) 1M x 9

(4) 1M x 9

(4) 1M x 9

(4) 1M x 9

Note:Banks 2 & 3 are utilized when an optional memory module is installed. (Part # HP D1440A)