UNIDENTIFIED

386 CACHE 25/33

Processor

80386DX

Processor Speed

25/33MHz

Chip Set

UMC

Max. Onboard DRAM

8MB

Cache

64KB

BIOS

AMI

Dimensions

355mm x 304mm

I/O Options

32-bit external memory card slot

NPU Options

80387

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

K1

Turbo LED

K8

Speaker

K4

Turbo switch

K9

Power LED & keylock

K5

32-bit external memory card

S1

Reset switch

K7

   

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

»

NPU disabled

J2

pins 2 & 3, 5 & 6 closed

 

NPU enabled

J2

pins 1 & 2, 4 & 5 closed

»

Upper memory enabled (384KB)

J3 pins 3 & 6

Open

 

Upper memory disabled (384KB)

J3 pins 3 & 6

Closed

»

Monitor type select color

J4

pins 2 & 3 closed

 

Monitor type select monochrome

J4

pins 1 & 2 closed

»

Memory expansion board not installed

J5

pins 1 & 2, 4 & 5 closed

 

Memory expansion board installed

J5

pins 2 & 3, 5 & 6 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

DRAM JUMPER CONFIGURATION

Size

J3

1MB

pins 1 & 4, 2 & 5 closed

2MB

pins 2 & 5 closed

4MB

pins 1 & 4 closed

8MB

Open

BIOS CONFIGURATION

Size

J1

27256

pins 1 & 2, 5 & 6 closed

27512

pins 1 & 2, 4 & 5 closed

27128

pins 2 & 3, 5 & 6 closed