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





TURBO MAINBOARD MB-101

UNIDENTIFIED

TURBO MAINBOARD MB-101

Processor

8088

Processor Speed

10MHz

Chip Set

None

Max. Onboard DRAM

640KB

Cache

None

BIOS

Unidentified

Dimensions

220mm x 220mm

I/O Options

None

NPU Options

8087

CONNECTIONS

Purpose

Location

Purpose

Location

Power LED & keylock

CN1

Turbo switch

JP3

Speaker

CN3

Reset switch

JP4

Turbo LED

JP1

   

USER CONFIGURABLE SETTINGS

Function

Jumper/Switch

Position

Parity check enabled

JP2

Open

 

Parity check disabled

JP2

Closed

Factory configured - do not alter

SW1/1

Off

NPU disabled

SW1/2

Off

 

NPU enabled

SW1/2

Off

DRAM CONFIGURATION

Bank

256KB

256KB

512KB

512KB

640KB

640KB

Bank 0

(8) 41256

NONE

(8) 41256

NONE

(8) 41256

NONE

Bank 1

NONE

NONE

(8) 41256

NONE

(8) 41256

NONE

Bank 2

NONE

NONE

NONE

NONE

(8) 4164

NONE

Bank 3

NONE

NONE

NONE

NONE

(8) 4164

NONE

Bank 4

NONE

(2) 44256

NONE

(2) 44256

NONE

(2) 44256

Bank 5

NONE

NONE

NONE

(2) 44256

NONE

(2) 44256

Bank 6

NONE

NONE

NONE

NONE

NONE

(2) 4464

Bank 7

NONE

NONE

NONE

NONE

NONE

(2) 4464

U9

(1) 41256

(1) 41256

(1) 41256

(1) 41256

(1) 41256

(1) 41256

U18

NONE

NONE

(1) 41256

(1) 41256

(1) 41256

(1) 41256

U27

NONE

NONE

NONE

NONE

(1) 4164

(1) 4164

U36

NONE

NONE

NONE

NONE

(1) 4164

(1) 4164

Note:If parity checking is disabled, then DRAM is not needed in U9, U18, U27, and U36.

DRAM SWITCH CONFIGURATION

Size

SW1/3

SW1/4

256KB

Open

Open

512KB

Closed

Open

640KB

Closed

Closed

FLOPPY DRIVE CONFIGURATION

Drives installed

SW1/7

SW1/8

1

(8) 41256

NONE

2

(8) 41256

NONE

3

(8) 4164

NONE

4

(8) 4164

NONE

MONITOR CONFIGURATION

Type

SW1/5

SW1/6

MGA

Off

Off

CGA

On

Off

EGA

On

On