...because we can't all be on the bleeding edge...





A3889

ABC COMPUTER COMPANY, LTD.

A3889

Processor

80386SX

Processor Speed

25MHz

Chip Set

Headland

Max. Onboard DRAM

8MB

Cache

None

BIOS

AMI

Dimensions

225mm x 220mm

I/O Options

Auxiliary keyboard connector

NPU Options

80387SX

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

JP1

Turbo switch

JP10

Auxiliary keyboard connector

JP2

Speaker

JP11

Turbo LED

JP8

Power LED & keylock

JP12

Reset switch

JP9

   

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

BIOS type select 27256

JP3

pins 1 & 2 closed

 

BIOS type select 27128

JP3

pins 2 & 3 closed

Pipeline mode enabled

JP4

pins 1 & 2 closed

 

Pipeline mode disabled

JP4

pins 2 & 3 closed

Monitor type select monochrome

JP5

Open

 

Monitor type select color

JP5

Closed

CMOS memory normal operation

JP6

Open

 

CMOS memory clear

JP6

Closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

512KB

(2) 256K x 9

NONE

NONE

NONE

1MB

(2) 256K x 9

(2) 256K x 9

NONE

NONE

1.5MB

(2) 256K x 9

(2) 256K x 9

(2) 256K x 9

NONE

2MB

(2) 256K x 9

(2) 256K x 9

(2) 256K x 9

(2) 256K x 9

2MB

(2) 1M x 9

NONE

NONE

NONE

3MB

(2) 256K x 9

(2) 256K x 9

(2) 1M x 9

NONE

4MB

(2) 1M x 9

(2) 1M x 9

NONE

NONE

4.5MB

(2) 1M x 9

(2) 1M x 9

(2) 256K x 9

NONE

5MB

(2) 256K x 9

(2) 256K x 9

(2) 1M x 9

(2) 1M x 9

6MB

(2) 1M x 9

(2) 1M x 9

(2) 1M x 9

NONE

8MB

(2) 1M x 9

(2) 1M x 9

(2) 1M x 9

(2) 1M x 9