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GMB-386UMC

ROBOTECH, INC.

GMB-386UMC

Processor

80386DX/CX486DLC

Processor Speed

20/25/33/40MHz

Chip Set

UMC

Max. Onboard DRAM

64MB

Cache

32/128KB

BIOS

AMI

Dimensions

220mm x 218mm

I/O Options

None

NPU Options

80387DX/CX487DLC

CONNECTIONS

Purpose

Location

Purpose

Location

Power LED & keylock

J1

Turbo LED

J5

Reset switch

J3

External battery

J6

Turbo switch

J4

Speaker

J10

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

Turbo switch select turbo

J4

Open

 

Turbo switch select normal

J4

Closed

NPU disabled

JP6

pins 1 & 2 closed

 

NPU enabled

JP6

pins 2 & 3 closed

Factory configured - do not alter

JP8

pins 2 & 3 closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

1MB

(4) 256K x 9

NONE

2MB

(4) 256K x 9

(4) 256K x 9

4MB

(4) 1M x 9

NONE

5MB

(4) 1M x 9

(4) 256K x 9

8MB

(4) 1M x 9

(4) 1M x 9

16MB

(4) 4M x 9

NONE

17MB

(4) 4M x 9

(4) 256K x 9

20MB

(4) 4M x 9

(4) 1M x 9

32MB

(4) 4M x 9

(4) 4M x 9

64MB

(4) 16M x 9

NONE

CACHE CONFIGURATION

Size

Bank 0

TAG

32KB

(4) 8K x 8

(1) 8K x 8

128KB

(4) 32K x 8

(1) 8K x 8

CACHE JUMPER CONFIGURATION

Size

JP3

JP4

32KB

Open

Open

128KB

Closed

Closed

CPU SPEED CONFIGURATION

Speed

JP1

JP2

20MHz

pins 2 & 3 closed

pins 2 & 3 closed

25MHz

pins 2 & 3 closed

pins 1 & 2 closed

33MHz

pins 1 & 2 closed

pins 2 & 3 closed

40MHz

pins 1 & 2 closed

pins 1 & 2 closed