J-MARK COMPUTER CORPORATION

386WB Cache (Version III)

Processor

80386DX

Processor Speed

33/40MHz

Chip Set

OPTI

Max. Onboard DRAM

32MB

Cache

32/64/128/256KB

BIOS

AMI

Dimensions

240mm x 220mm

I/O Options

None

NPU Options

80387

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

J10

Turbo LED

JP4

Power LED & keylock

J23

Reset switch

JP11

Speaker

J24

Turbo switch

SW2

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

JP14

Open

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

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

2 & 3

1 & 2

Open

Open

2 & 3

64KB

2 & 3

2 & 3

1 & 2

Open

Open

1 & 2

128KB

2 & 3

2 & 3

2 & 3

Closed

Open

1 & 2

256KB

2 & 3

1 & 2

2 & 3

Closed

Closed

1 & 2

Note:Pins designated should be in the closed position.