UNIDENTIFIED

AT286

Processor

80286

Processor Speed

12/16MHz

Chip Set

Headland

Max. Onboard DRAM

16MB

Cache

None

BIOS

AMI/Award/Phoenix

Dimensions

330mm x 218mm

I/O Options

None

NPU Options

80287

CONNECTIONS

Purpose

Location

Purpose

Location

Reset switch

JP6

Turbo LED

T1

Power LED & keylock

J20

Turbo switch

T2

Speaker

SP

   

USER CONFIGURABLE SETTINGS

Function

Jumper/Switch

Position

»

NPU speed select 10MHz

J21

pins 1 & 2 closed

 

NPU speed select 6MHz

J21

pins 2 & 3 closed

»

Wait state select 0

0WS

Closed

 

Wait state select 1

0WS

Open

»

Monitor type select color

DSP1/2

On

 

Monitor type select monochrome

DSP1/2

Off

»

BIOS type select 27128

DSP1/5

On

 

BIOS type select 27256

DSP1/5

Off

DRAM CONFIGURATION

Size

Bank 0

Bank 1

512KB

(18) 41256

NONE

640KB

(18) 41256

(18) 4164

1MB

(18) 41256

(18) 41256

640KB + EMS (16KB x 24 pages)

(18) 41256

(18) 41256

2MB

(18) 411000

NONE

640KB + EMS (16KB x 88 pages)

(18) 411000

NONE

4MB

(18) 411000

(18) 411000

640KB + EMS (16KB x 216 pages)

(18) 411000

(18) 411000

DRAM SWITCH CONFIGURATION

Size

DSP1/6

DSP1/7

DSP1/8

512KB

On

On

On

640KB

On

On

Off

1MB

On

Off

On

640KB + EMS (16KB x 24 pages)

On

Off

Off

2MB

Off

On

On

640KB + EMS (16KB x 88 pages)

Off

On

Off

4MB

Off

Off

On

640KB + EMS (16KB x 216 pages)

Off

Off

Off