UNIDENTIFIED

10MHz/8MHz SYSTEM BOARD

Processor

8088

Processor Speed

8/10MHz

Chip Set

Unidentified

Max. Onboard DRAM

640KB

Cache

None

BIOS

Unidentified

Dimensions

330mm x 218mm

I/O Options

None

NPU Options

8087

CONNECTIONS

Purpose

Location

Purpose

Location

Reset switch

JP1

Speaker

JP4

Keylock

JP2

Power LED

JP7

Turbo LED

JP3

   

USER CONFIGURABLE SETTINGS

Function

Switch

Position

 

NPU enabled

SW1/2

Off

 

NPU disabled

SW1/2

On

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

256K

(9) 41256

NONE

NONE

NONE

512K

(9) 41256

(9) 41256

NONE

NONE

640K

(9) 41256

(9) 41256

(9) 4164

(9) 4164

DRAM JUMPER CONFIGURATION

Size

SW1/3

SW1/4

None

On

On

256KB

Off

Off

512KB

On

Off

640KB

Off

On

CPU SPEED CONFIGURATION

Speed

SW1/1

4.77MHz

Off

8MHz

On

10MHz

On

MONITOR TYPE SELECTION

Type

SW1/5

SW1/6

None

On

On

Color 40 x 20

Off

On

Color 80 x 25

On

Off

Monochrome or both

Off

Off

FLOPPY DRIVE CONFIGURATION

Number of drives

SW1/7

SW1/8

1

On

On

2

Off

On

3

On

Off

4

Off

Off