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DESKPRO 386 (TYPE 'A')

COMPAQ COMPUTER CORPORATION

DESKPRO 386 (TYPE 'A')

Processor

80386DX

Processor Speed

16MHz

Chip Set

ETEQ

Max. Onboard DRAM

2MB (on system memory card)

Cache

None

BIOS

Compaq

Dimensions

330mm x 218mm

I/O Options

Proprietary system memory card slot, proprietary external memory card slot (on system memory card)

NPU Options

80287

CONNECTIONS

Purpose

Location

Purpose

Location

Fixed drive power

J109

Proprietary keyboard plug

J116

Tape backup power

J110

Main power

J117

Floppy drive power

J111

External battery

J118

Floppy drive power

J112

Keylock

J119

Monitor power

J113

Proprietary system memory card

S1

Speaker

J115

   

USER CONFIGURABLE SETTINGS

Function

Switch

Position

Fail-safe timer enabled

SW1/1

On

 

Fail-safe timer disabled

SW1/1

Off

NPU enabled

SW1/2

On

 

NPU disabled

SW1/2

Off

NPU type select 4MHz

SW1/3

On

 

NPU type select 8MHz

SW1/3

Off

CPU speed at boot automatic

SW1/4

On

CPU speed at boot high

SW1/4

Off

Factory configured - do not alter

SW1/5

Off

Monitor type select dual-mode/color

SW1/6

On

 

Monitor type select monochrome other than Compaq

SW1/6

Off

Factory configured - do not alter

SW1/7

On

Factory configured - do not alter

SW1/8

On

CONNECTIONS

Purpose

Location

Proprietary external memory card

S1 & S2

DRAM CONFIGURATION

Size

Bank 0

Bank 1

1MB

(36) 41256

NONE

2MB

(36) 41256

(36) 41256

DRAM CONFIGURATION

Size

Base Memory

Ext. Memory

1MBExp. Memory

J1

1MB

256KB

768KB

disabled

pins 1 & 2, 4 & 5, 7 & 8 closed

1MB

512KB

512KB

disabled

pins 2 & 3, 4 & 5, 7 & 8 closed

1MB

640KB

384KB

disabled

pins 2 & 3, 5 & 6, 7 & 8 closed

2MB

256KB

768KB

enabled

pins 1 & 2, 4 & 5, 8 & 9 closed

2MB

512KB

512KB

enabled

pins 2 & 3, 4 & 5, 8 & 9 closed

2MB

640KB

384KB

enabled

pins 2 & 3, 5 & 6, 8 & 9 closed

Note:Jumpers 3 & 4 and 6 & 7 should never be closed as serious damage to the system may result.