UNIDENTIFIED

386DX CACHE MAINBOARD

Processor

80386DX

Processor Speed

33/40MHz

Chip Set

OPTI

Max. Onboard DRAM

32MB

Cache

128KB

BIOS

AMI

Dimensions

220mm x 170mm

I/O Options

None

NPU Options

80387DX

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

J1

Turbo switch

JP4

Power LED & keylock

J16

Speaker

JP6

Turbo LED

JP3

Reset switch

S1

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

»

Monitor type select monochrome

JP1

Open

 

Monitor type select color

JP1

Closed

»

CMOS memory normal operation

JP2

pins 1 & 2 closed

 

CMOS memory clear

JP2

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

8MB

(4) 1M x 9

(4) 1M x 9

16MB

(4) 4M x 9

NONE

32MB

(4) 4M x 9

(4) 4M x 9

CACHE CONFIGURATION

Size

Bank 0

128KB

(4) 32K x 8

CPU SPEED CONFIGURATION

Speed

JP7

JP8

50MHz

Closed

Open

66MHz

Open

Closed

80MHz

Open

Open