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





SUNTAC 286-12

UNIDENTIFIED

SUNTAC 286-12

Processor

80286

Processor Speed

12MHz

Chip Set

Suntac

Max. Onboard DRAM

4MB

Cache

None

BIOS

AMI/Award/ERSO/Phoenix

Dimensions

330mm x 218mm

I/O Options

None

NPU Options

80287

CONNECTIONS

Purpose

Location

Purpose

Location

Speaker

J19

Turbo switch

JP4

Power LED & keylock

J20

Turbo LED

JP5

External battery

J21

Reset switch

JP6

External EMS selection

JP2

   

USER CONFIGURABLE SETTINGS

Function

Jumper/Switch

Position

Internal battery switch

BS

N/A

Factory configured - do not alter

J18

N/A

Keyboard BIOS type select Award

JP7

pins 2 & 3 closed

 

Keyboard BIOS type select Phoenix

JP7

pins 1 & 2 closed

Monitor type select color

SW1

pins 2 & 3 closed

 

Monitor type select monochrome

SW1

pins 1 & 2 closed

 

EMS port address select 0E8H- 0EFH

SW2/4

Off

 

EMS port address select 098H- 09FH

SW2/4

On

Note: The location of JP7 is unidentified.

DRAM CONFIGURATION

Size

Bank 0

Bank 1

512KB

(18) 41256

NONE

640KB

(18) 41256

(18) 4164

1MB

(18) 41256

(18) 41256

640KB+EMS (384KB)

(18) 41256

(18) 41256

2MB

(18) 411000

NONE

640KB+EMS (1408KB)

(18) 411000

NONE

4MB

(18) 411000

(18) 411000

640KB+EMS (3456KB)

(18) 411000

(18) 411000

DRAM SWITCH CONFIGURATION

Size

SW2/6

SW2/7

SW2/8

512KB

On

On

On

640KB

On

On

Off

1MB

On

Off

On

640KB+EMS (384KB)

On

Off

Off

2MB

Off

On

On

640KB+EMS (1408KB)

Off

On

Off

4MB

Off

Off

On

640KB+EMS (3456KB)

Off

Off

Off

CPU SPEED CONFIGURATION

Speed

JP1

JP4

SW2/1

CPU speed forced high

pins 2 & 3 closed

N/A

Off

CPU speed forced low

pins 2 & 3 closed

N/A

On

CPU speed forced high

pins 1 & 2 closed

Closed

N/A

CPU speed selectable at keyboard

pins 1 & 2 closed

Open

Closed

I/O WAIT STATE CONFIGURATION

Wait state

JP1

JP3

SW2/3

4

pins 2 & 3 closed

pins 2 & 3 closed

On

6

pins 2 & 3 closed

pins 2 & 3 closed

Off

BIOS CONFIGURATION

Type

JP9

SW2/5

27256

pins 2 & 3 closed

On

 

27128

pins 1 & 2 closed

Off

EMS TOGGLE CONFIGURATION

Setting

JP2

SW2/8

On

Closed

Off

Off

Open

On