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PREMIUM WORKSTATION/286

AST RESEARCH, INC.

PREMIUM WORKSTATION/286

Processor

80286

Processor Speed

10MHz

Chip Set

AST

Max. Onboard DRAM

4MB

Cache

None

BIOS

AST

Dimensions

330mm x 218mm

I/O Options

Floppy drive controller module, IDE interface, parallel port, serial ports (2), video controller module

NPU Options

80287

CONNECTIONS

Purpose

Location

Purpose

Location

Parallel port

CN1

IDE interface

J2

Serial port 2 (COM2)

CN2

Floppy drive controller module

J3

Serial port 1 (COM1)

CN3

External battery

J6

Riser card

CN4

Optional ROM (odd)

U56

Video port

CN5

Optional ROM (even)

U65

Front panel switches & LEDs

J1

   

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

BIOS type select 27128

JP7

pins 1 & 2 closed

 

BIOS type select 27256

JP7

pins 2 & 3 closed

Factory configured - do not alter

JP8

open

Note:Jumper JP8 may not be present on all board revisions.

DRAM CONFIGURATION

Size

Jumpers JP1 through JP6

Bank 0

Bank 1

512KB

pins 1 & 2 closed

(2) 256K x 9

NONE

1MB

pins 1 & 2 closed

(2) 256K x 9

(2) 256K x 9

2MB

pins 2 & 3 closed

(2) 1M x 9

NONE

4MB

pins 2 & 3 closed

(2) 1M x 9

(2) 1M x 9