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MICRO 286-12

UNIDENTIFIED

MICRO 286-12

Processor

80286

Processor Speed

12MHz

Chip Set

Unidentified

Max. Onboard DRAM

4MB

Cache

None

BIOS

AMI

Dimensions

330mm x 218mm

I/O Options

None

NPU Options

80287

CONNECTIONS

Purpose

Location

Purpose

Location

Speaker

J1

Turbo LED

J4

Reset switch

J2

External battery

J7

Power LED & keylock

J3

Turbo switch

J8

USER CONFIGURABLE SETTINGS

Function

Jumper/Switch

Position

Wait states select 0

W1

pins 1 & 2 closed

 

Wait state select 1

W1

pins 2 & 3 closed

Factory configured - do not alter

W2

pins 2 & 3 closed

BIOS type select 27256

W6

pins 1 & 2 closed

 

BIOS type select 27128

W6

pins 2 & 3 closed

Monitor type select color

W7

Closed

 

Monitor type select monochrome

W7

Open

Parity check enabled

W9

pins 1 & 2 closed

 

Parity check disabled

W9

pins 2 & 3 closed

Bus speed select fast

SW1/2

On

 

Bus speed select normal

SW1/2

Off

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

256KB 1

(4) 44256

NONE

NONE

NONE

256KB

NONE

NONE

(2) 256K x 9

NONE

512KB 2

(4) 44256

NONE

NONE

NONE

512KB

NONE

NONE

(2) 256K x 9

(2) 256K x 9

512KB

NONE

NONE

(2) 1M x 9

NONE

640KB 3

(4) 44256

(4) 4464

NONE

NONE

640KB

NONE

NONE

(2) 256K x 9

(2) 256K x 9

640KB

NONE

NONE

(2) 1M x 9

NONE

1MB 2

(4) 44256

(4) 44256

NONE

NONE

1MB

NONE

NONE

(2) 256K x 9

(2) 256K x 9

2MB

NONE

NONE

(2) 1M x 9

NONE

4MB

NONE

NONE

(2) 1M x 9

(2) 1M x 9

Note:If using only SIMMs don't install any chips in P-0 or P-1.

Note 1 :If parity checking is enabled, install (2) 41256 in P-0

Note 2 :If parity checking is enabled, install (2) 41256 in P-0 and (2) 41256 in P-1

Note 3 :If parity checking is enabled, install (2) 41256 in P-0 and (2) 4164 in P-0

DRAM SWITCH CONFIGURATION

Size

SW1/1

SW1/2

SW1/3

256KB 1

On

On

On

256KB

On

On

On

512KB 2

On

Off

On

512KB

On

Off

On

512KB

Off

On

On

640KB 3

On

On

Off

640KB

On

On

Off

640KB

Off

Off

On

1MB 2

On

Off

Off

1MB

On

Off

Off

2MB

Off

On

Off

4MB

Off

Off

Off