UNIDENTIFIED

286-SYSTEM BOARD

Processor

AM286/80286

Processor Speed

6/8/10/12/16MHz

Chip Set

VLSI

Video Chip Set

None

Maximum Onboard Memory

4MB

Maximum Video Memory

None

Cache

None

BIOS

AMI/Award/Phoenix

Dimensions

330mm x 218mm

I/O Options

None

NPU Options

80287

CONNECTIONS

Purpose

Location

Purpose

Location

Speaker

J1

Turbo LED

J4

Power LED & keylock

J2

Turbo switch

J5

Reset switch

J3

   

USER CONFIGURABLE SETTINGS

Function

Label

Position

 

BIOS type select 27128

JP1

Pins 2 & 3 closed

 

BIOS type select 27256

JP1

Pins 1 & 2 closed

 

Monitor type select color

JP7

Closed

 

Monitor type select monochrome

JP7

Open

 

Wait state select 0 wait states

JP8

Closed

 

Wait state select 1 wait state

JP8

Open

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

512KB

(18) 41256

None

None

None

512KB

None

None

(2) 256K x 9

None

640KB

(18) 41256

(18) 4164

None

None

1MB

(18) 41256

(18) 41256

None

None

1MB

None

None

(2) 256K x 9

(2) 256K x 9

2MB

(18) 411000

None

None

None

2MB

None

None

(2) 1M x 9

None

4MB

(18) 411000

(18) 411000

None

None

4MB

None

None

(2) 1M x 9

(2) 1M x 9

DRAM JUMPER CONFIGURATION

Size

JP2

JP3

JP4

512KB

Open

Closed

Closed

640KB

Closed

Open

Open

1MB

Closed

Open

Closed

2MB

Closed

Closed

Open

4MB

Closed

Closed

Closed

CPU SPEED SELECTION

Speed

JP6

6/12MHz

Open

8/12MHz

Closed