HwMuseum | Index

COMPAQ COMPUTER CORPORATION

PORTABLE 286

Processor

80286

Processor Speed

6/8MHz

Chip Set

FOREX

Max. Onboard DRAM

640KB

Cache

None

BIOS

AMI

Dimensions

330mm x 218mm

I/O Options

None

NPU Options

8087/80287/80387SX/CX487SLC/80387DX/CX487DLC/3167/4167

CONNECTIONS

Purpose

Location

Purpose

Location

External power connector

S1

External battery

S3

Monitor connector

S2

Speaker

S4

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

»

Monitor select monochrome video display controller

ED

pins 1 & 2 closed

 

Monitor select COMPAQ duel-mode video display controller

ED

pins 2 & 3 closed

»

Factory configured - do not alter

EM

N/A

»

Speed select secondary, 6MHz

ES

pins 2 & 3 closed

 

Speed select primary, 8MHz

ES

pins 1 & 2 closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

128KB

128KB

NONE

256KB

128KB

(18) 4164

640KB

128KB

(18) 41256

TECHNICAL NOTE

E1, E2, E3 is unidentified by the manufacturer.