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80286-12 TURBO

UNIDENTIFIED

80286-12 TURBO

Processor

80286

Processor Speed

12MHz

Chip Set

Unknown

Max. Onboard DRAM

4MB

Cache

None

BIOS

AMI

Dimensions

243mm x 218mm

I/O Options

None

NPU Options

80287

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

J2

Reset switch

JP13

Turbo LED

JP11

Speaker

JP14

Turbo switch

JP12

Power LED & keylock

JP15

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

 

Factory configured - do not alter

J8

N/A

 

Factory configured - do not alter

J9

N/A

NPU mode select synchronous with CPU

J10

pins 2 & 3 closed

 

NPU mode select asynchronous with CPU

J10

pins 1 & 2 closed

Monitor type select color

JP5

pins 2 & 3 closed

 

Monitor type select monochrome

JP5

pins 1 & 2 closed

DRAM CONFIGURATION

Size

Bank 0

P-0

Bank 1

P-1

Bank 2

Bank 3

512KB

(4) 44256

(2) 41256

NONE

NONE

NONE

NONE

512KB

NONE

NONE

NONE

NONE

(2) 256K x 9

NONE

640KB

(4) 44256

(2) 41256

(4) 4464

(2) 4164

NONE

NONE

1MB

(4) 44256

(2) 41256

(4) 44256

(2) 41256

NONE

NONE

1MB

NONE

NONE

NONE

NONE

(2) 256K x 9

(2) 256K x 9

2MB

NONE

NONE

NONE

NONE

(2) 1M x 9

NONE

4MB

NONE

NONE

NONE

NONE

(2) 1M x 9

(2) 1M x 9

Notes:Locations of Bank 0, Bank 1, P0, & P1 unidentified. Bank 0 consists of U26, U27, U31, & U32. Bank 1 consists of U35, U36, U37, & U38. P-0 consists of U41 & U42. P-1 consists of U43 & U44.