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MB286T 12/16

UNIDENTIFIED

MB286T 12/16

Processor

80286

Processor Speed

12/16MHz

Chip Set

Goldstar

Max. Onboard DRAM

5MB

SRAM Cache

None

BIOS

AMI

Dimensions

220mm x 230mm

I/O Options

None

NPU Options

80287

CONNECTIONS

Purpose

Location

Purpose

Location

Power LED & keylock

J4

Turbo LED

J8

External battery

JP5

Reset switch

J11

Turbo switch

J7

Speaker

J13

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

Monitor type select color

JP3

closed

 

Monitor type select monochrome

JP3

open

CMOS memory normal operation

JP6

closed

 

CMOS memory clear

JP6

open

Factory configured - do not alter

JP14

unknown

Note: Location of JP3 is unverified.

BASE MEMORY SELECT

Banks

JP17,JP18,JP19,JP20,JP21 & JP22

Base memory : Banks 2 & 3

pins 1 & 2 closed

Base memory : Banks 0 & 1 (Expansion memory : Banks 2 & 3)

pins 2 & 3 closed

Note: Exact arrangement & size of DIPP sockets unverified.

DRAM CONFIGURATION

Size

DIP Bank 0

DIP Bank 1

SIMM Bank 2

SIMM Bank 3

512KB

(4) 44256 &

(2) 41256

NONE

NONE

NONE

1MB

(4) 44256 &

(2) 41256

(4) 44256 &

(2) 41256

NONE

NONE

2MB

(4) 44256 &

(2) 41256

(4) 44256 &

(2) 41256

(2) 256K x 9

(2) 256K x 9

3MB

(4) 44256 &

(2) 41256

(4) 44256 &

(2) 41256

(2) 1M x 9

NONE

5MB

(4) 44256 &

(2) 41256

(4) 44256 &

(2) 41256

(2) 1M x 9

(2) 1M x 9

Note: This table for use when banks 0 & 1 are used for base memory and banks 2 & 3 are used for expansion memory.

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

512KB

NONE

NONE

(2) 256K x 9

NONE

1MB

NONE

NONE

(2) 256K x 9

(2) 256K x 9

2MB

NONE

NONE

(2) 1M x 9

NONE

2.5MB

NONE

NONE

(2) 256K x 9

(2) 1M x 9

4MB

NONE

NONE

(2) 1M x 9

(2) 1M x 9

Note: This table for use when banks 2 & 3 are used for base memory only.