J-MARK COMPUTER CORPORATION

386WB CACHE

Processor

80386DX

Processor Speed

33/40MHz

Chip Set

OPTI

Max. Onboard DRAM

32MB

Cache

32/64/128/256KB

BIOS

AMI

Dimensions

330mm x 218mm

I/O Options

32-bit external memory card slot

NPU Options

80387/3167

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

J10

32-bit external memory card

S1

Power LED & keylock

J23

Reset switch

SW1

Speaker

J24

Turbo switch

SW2

Turbo LED

JP4

   

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

»

Factory configured - do not alter

J3

N/A

»

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

»

Bus speed select ATCLK/8

JP3

Closed

 

Bus speed select ATCLK/6

JP3

Open

DRAM CONFIGURATION

Size

Bank 0

Bank 3

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

Bank 1

32KB

(4) 8K x 8

NONE

64KB

(4) 8K x 8

(4) 8K x 8

128KB

(4) 32K x 8

NONE

256KB

(4) 32K x 8

(4) 32K x 8

CACHE JUMPER CONFIGURATION

Size

JP5

JP6

JP7

JP8

JP9

JP10

32KB

1 & 2

1 & 2

1 & 2

Open

2 & 3

2 & 3

64KB

2 & 3

1 & 2

1 & 2

Open

2 & 3

1 & 2

128KB

2 & 3

1 & 2

2 & 3

Closed

2 & 3

1 & 2

256KB

2 & 3

2 & 3

2 & 3

Closed

1 & 2

1 & 2

Note:Pins designated should be in the closed position.