CORE PACIFIC ELECTRONICS, INC

386 MAINBOARD

Processor

80386DX

Processor Speed

33/40MHz

Chip Set

Forex

Max. Onboard DRAM

32MB

Cache

32/64/128KB

BIOS

AMI

Dimensions

330mm x 218mm

I/O Options

None

NPU Options

80387/3167

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

JP2

Power LED & keylock

JP9

Turbo LED

JP7

Speaker

JP10

Reset switch

JP8

Turbo switch

JP11

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

»

NPU mode select synchronous with CPU

JP5

pins 1 & 2 closed

 

NPU mode select synchronous with oscillator installed at Y1

JP5

pins 2 & 3 closed

»

CPU speed select forced slow

JP11

Closed

 

CPU speed select switchable at keyboard

JP11

Open

»

External battery select 3.6VDC

JP200

Closed

 

External battery select 6.0VDC

JP200

Open

»

Battery type select internal

JP201

Closed

 

Battery type select external

JP201

Open

»

CMOS memory normal operation

JP202

Open

 

CMOS memory clear

JP202

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) 256K x 9

(4) 1 M x 9

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

Bank 1

U15

U16

32KB

(4) 8K x 8

NONE

NONE

(1) 8K x 8

64KB

(4) 8K x 8

(4) 8K x 8

(1) 8K x 8

(1) 8K x 8

128KB

NONE

(4) 32K x 8

(1) 32K x 8

NONE

CACHE JUMPER CONFIGURATION

Size

JP6

32KB

pins 1 & 2 closed

64KB

pins 2 & 3 closed

128KB

pins 2 & 3 closed