...because we can't all be on the bleeding edge...





GH-286

UNIDENTIFIED

GH-286

Processor

80286

Processor Speed

10/12MHz

Chip Set

G-2

Max. Onboard DRAM

4MB

Cache

None

BIOS

AMI

Dimensions

330mm x 218mm

I/O Options

None

NPU Options

80287

CONNECTIONS

Purpose

Location

Purpose

Location

Turbo switch

J4

Speaker

J17

External battery

J14

Turbo LED

J19

Power LED & keylock

J16

Reset switch

J20

USER CONFIGURABLE SETTINGS

Function

Jumper/Switch

Position

CPU speed select [CTRL][ALT][+] = fast, [CTRL][ALT][-] = slow

J4

pins 1 & 2 closed

 

CPU speed select fast

J4

pins 2 & 3 closed

NPU mode select synchronous with CPU

JP2

pins 2 & 3 closed

 

NPU mode select asynchronous with CPU

JP2

pins 1 & 2 closed

Parity check enabled

JP3

Closed

 

Parity check disabled

JP3

Open

DRAM select 0 wait states

J18

pins 2 & 3 closed

 

DRAM select 1 wait state

J18

Open

 

DRAM wait states select [CTRL][ALT][0] = 0 [CTRL][ALT][1] = 1

J18

pins 1 & 2 closed

Monitor type select color

SW1/1

On

 

Monitor type select monochrome

SW1/1

Off

DRAM CONFIGURATION

Size

Bank 0

P-0

Bank 1

P-1

Bank 2

Bank 3

512KB

(4) 44256

(2) 41256

NONE

NONE

NONE

NONE

640KB

(4) 44256

(2) 41256

(4) 4464

(2) 4164

NONE

NONE

1MB

(4) 44256

(2) 41256

(4) 44256

(2) 41256

NONE

NONE

2MB

NONE

NONE

NONE

NONE

(2) 1M x 9

NONE

4MB

NONE

NONE

NONE

NONE

(2) 1M x 9

(2) 1M x 9

DRAM SWITCH CONFIGURATION

Size

SW1/2

SW1/3

SW1/4

512KB

On

On

Off

640KB

On

Off

On

1MB

On

Off

Off

2MB

Off

Off

On

4MB

Off

Off

Off