B800 SERIES Motherboard Settings and Configuration

Processor

80386DX/CX486DLC/80486SX/80487SX/80486DX/80486DX2

Processor Speed

20/25/33/40/50 (Internal) /50/66 (Internal)

Chip Set

C & T

Max. onboard DRAM

32MB

Cache

64/128/256KB

BIOS

AMI

Dimensions

330mm x 218mm

I/O Options

None

NPU Options

80387DX/CX487DLC

CONNECTIONS

Purpose

Location

Purpose

Location

External battery (4.5V)

JP2

Speaker

JP34B

External battery (6.0V)

JP31

Turbo LED

JP34C

External Keyboard

JP33

Turbo switch

JP34D

Power LED & keylock

JP34A

Reset switch

JP34E

USER CONFIGURABLE SETTINGS

Function

Jumper/Switch

Position

»

Monitor type select monochrome

JP3

Open

Monitor type select color

JP3

Closed

»

IPC (82C206) normal operation

JP6

Pins 1 & 2 closed

IPC (82C206) clear

JP6

Pins 2 & 3 closed

»

Rechargeable battery enabled

JP32

Closed

Rechargeable battery disabled

JP32

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

5MB

(4) 256K x 9

(4) 1M x 9

8MB

(4) 1M x 9

(4) 1M x 9

16MB

(4) 4M x 9

NONE

20MB

(4) 1M x 9

(4) 4M x 9

32MB

(4) 4M x 9

(4) 4M x 9

CACHE CONFIGURATION

Size

Bank 0

Bank 1

TAG0

TAG1

64KB

(4) 8K x 8

(4) 8K x 8

(1) 8K x 8

NONE

128KB

(4) 32K x 8

NONE

(1) 8K x 8

NONE

256KB

(4) 32K x 8

(4) 32K x 8

(1) 8K x 8

(1) 8K x 8

CACHE JUMPER CONFIGURATION

Size

JP8A

JP8B

JP8C

JP8E

JP8F

64KB

Pins 2 & 3

Pins 1 & 2

Pins 1 & 2

Pins 2 & 3

Pins 1 & 2

128KB

Pins 1 & 2

Pins 2 & 3

Pins 2 & 3

Pins 1 & 2

Pins 1 & 2

256KB

Pins 2 & 3

Pins 1 & 2

Pins 1 & 2

Pins 1 & 2

Pins 2 & 3

Note:Pins designated should be in the closed position.

CPU TYPE/SPEED CONFIGURATION

Type/Speed

JP40/pins 1 & 7

JP40/pins 2 & 8

JP40/pins 3 & 9

JP40/pins 4 & 10

80386DX/33MHz

Closed

Open

Closed

Open

80386DX/40MHz

Closed

Open

Open

Closed

80486DLC/33MHz

Closed

Open

Closed

Open

80486DLC/40MHz

Closed

Open

Open

Closed

80486SX/20MHz

Closed

Closed

Closed

Closed

80486SX/25MHz

Open

Open

Closed

Closed

80486DX/33MHz

Open

Open

Closed

Open

80486DX/50MHz

Open

Open

Open

Open

80486DX2/50i MHz

Open

Open

Closed

Closed

80486DX2/66i MHz

Open

Open

Closed

Open

CPU TYPE CONFIGURATION

Jumper

386DX

486DLC

486SX/DX/DX2

487DX

W1A

Pins 2 & 3 closed

Pins 2 & 3 closed

Pins 1 & 2 closed

Pins 1 & 2 closed

W1B

Pins 2 & 3 closed

Pins 1 & 2 closed

Pins 1 & 2 closed

Pins 1 & 2 closed

W1C

Pins 2 & 3 closed

Pins 2 & 3 closed

Pins 1 & 2 closed

Pins 1 & 2 closed

W2A

Pins 2 & 3 closed

Pins 2 & 3 closed

Pins 1 & 2 closed

Pins 1 & 2 closed

W2C

Pins 2 & 3 closed

Pins 2 & 3 closed

Pins 1 & 2 closed

Pins 1 & 2 closed

W2D

Pins 2 & 3 closed

Pins 2 & 3 closed

Pins 1 & 2 closed

Pins 1 & 2 closed

W2E

Pins 2 & 3 closed

Pins 2 & 3 closed

Pins 1 & 2 closed

Pins 1 & 2 closed

W2G

Pins 2 & 3 closed

Pins 2 & 3 closed

Pins 1 & 2 closed

Pins 1 & 2 closed

W2H

Pins 2 & 3 closed

Pins 2 & 3 closed

Pins 1 & 2 closed

Pins 1 & 2 closed

W3A

Pins 1 & 2 closed

Pins 1 & 2 closed

Pins 2 & 3 closed

Pins 2 & 3 closed

W3B

Pins 2 & 3 closed

Pins 1 & 2 closed

Pins 1 & 2 closed

Pins 1 & 2 closed

W4

Pins 1 & 2 closed

Pins 2 & 3 closed

Pins 1 & 2 closed

Pins 1 & 2 closed

80486 CPU CONFIGURATION

Type

JP12

JP13

JP30

80486SX

Pins 2 & 3 closed

Pins 2 & 3 closed

Pins 2 & 3 closed

80487SX

Pins 1 & 2 closed

Pins 1 & 2 closed

Pins 2 & 3 closed

80486DX

Pins 1 & 2 closed

Pins 1 & 2 closed

Pins 1 & 2 closed

80486DX2

Pins 1 & 2 closed

Pins 1 & 2 closed

Pins 1 & 2 closed