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





386DX WBC 2025

JC INFORMATION SYSTEMS CORPORATION

386DX WBC 2025

Processor

80386DX

Processor Speed

25/33MHz

Chip Set

OPTI

Max. Onboard DRAM

32MB

Cache

64KB

BIOS

AMI

Dimensions

330mm x 218mm

I/O Options

32-bit external memory card slot

NPU Options

80387/3167

CONNECTIONS

Purpose

Location

Purpose

Location

Turbo switch

J5

External battery

J10

Reset switch

J6

Turbo LED

JP4

Speaker

J7

32-bit external memory card

S1

Power LED & keylock

J8

   

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

Monitor type select color

JP1

Closed

 

Monitor type select monochrome

JP1

Open

CMOS memory normal operation

JP2

pins 2 & 3 closed

 

CMOS memory clear

JP2

pins 1 & 2 closed

Factory configured - do not alter

JP3

Closed

Factory configured - do not alter

JP5

pins 2 & 3 closed

Factory configured - do not alter

JP6

pins 1 & 2 closed

Factory configured - do not alter

JP7

pins 1 & 2 closed

Factory configured - do not alter

JP8

pins 1 & 2 closed

Factory configured - do not alter

JP9

pins 2 & 3 closed

Factory configured - do not alter

JP10

pins 1 & 2 closed

 

Note : The locations of jumpers JP3, JP5, JP6, JP7, JP8, JP9 and JP10 are unidentified.

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) 1 M x 9

(4) 256K 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

TAG (U1)

TAG (U2 & U3)

64KB

(8) 8K x 8

(1) 16K x 4

(2) 4K x 4