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286LX-A

UNIDENTIFIED

286LX-A

Processor

80286

Processor Speed

10/12MHz

Chip Set

VLSI

Max. Onboard DRAM

4MB

Cache

None

BIOS

AMI

Dimensions

330mm x 220mm

I/O Options

None

NPU Options

80287

CONNECTIONS

Purpose

Location

Purpose

Location

Power LED & keylock

J18

Reset switch

J29

External battery

J22

Turbo LED

J103

Speaker

J23

Turbo switch

J104

USER CONFIGURABLE SETTINGS

Function

Jumper/Switch

Position

Battery select internal

J28

pins 1 & 2 closed

 

Battery select external

J28

pins 2 & 3 closed

Timing mode select fast

J30

pins 1 & 2 closed

 

Timing mode select slow

J30

pins 2 & 3 closed

CPU speed select 12MHz

J102

pins 1 & 2 closed

 

CPU speed select 10MHz

J102

pins 2 & 3 closed

Monitor type select color

SW1/4

On

 

Monitor type select monochrome

SW1/4

Off

DRAM CONFIGURATION

Size

Bank 0

Bank 1

512KB

(18) 41256

NONE

640KB

(18) 41256

(18) 4164

1MB

(18) 41256

(18) 41256

2MB

(18) 411000

NONE

4MB

(18) 411000

(18) 411000

DRAM SPEED CONFIGURATION

Speed

J10

J31

100ns/0 wait states

pins 1 & 2 closed

Closed

120ns/1 wait state

pins 2 & 3 closed

Open

DRAM JUMPER CONFIGURATION

Size

SW1/1

SW1/2

SW1/3

512KB

On

On

On

640KB

Off

On

On

1MB

On

Off

On

2MB

Off

Off

On

4MB

On

On

Off