UNIDENTIFIED

UNI-486WB

Processor

80486SX/80486DX/80486DX2

Processor Speed

25/33/50(internal)/50/66(internal)MHz

Chip Set

UNI

Max. Onboard DRAM

32MB

Cache

32/64/128/256KB

BIOS

AMI

Dimensions

230mm x 218mm

I/O Options

None

NPU Options

4167

CONNECTIONS

Purpose

Location

Purpose

Location

Power LED & keylock

J1

Turbo switch

J4

Speaker

J2

Reset switch

J5

Turbo LED

J3

External battery

J6

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

»

Turbo mode disabled

J4

Open

 

Turbo mode enabled

J4

Closed

»

Battery type select internal

J6

pins 2 & 3 closed

 

Battery type select external

J6

pins 1, 2, 3 & 4 closed

»

Normal A20 enabled

JP3

pins 2 & 3 closed

 

Fast A20 enabled

JP3

pins 1 & 2 closed

»

Monitor type select monochrome

JP13

Open

 

Monitor type select color

JP13

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) 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

20MB

(4) 4M x 9

(4) 1M x 9

32MB

(4) 4M x 9

(4) 4M x 9

CACHE CONFIGURATION

Size

Bank 0

Bank 1

TAG

32KB

(4) 8K x 8

NONE

(1) 8K x 8

64KB

(4) 8K x 8

(4) 8K x 8

(1) 8K x 8

128KB

(4) 32K x 8

NONE

(1) 8K x 8

256KB

(4) 32K x 8

(4) 32K x 8

(1) 32K x 8

CACHE JUMPER CONFIGURATION

Size

JP4

JP5

JP6

JP7

32KB

Open

Open

Open

pins 1 & 2 closed

64KB

Closed

Open

Open

pins 2 & 3 closed

128KB

Closed

Open

Closed

pins 2 & 3 closed

256KB

Closed

Closed

Closed

pins 2 & 3 closed

CACHE JUMPER CONFIGURATION

Size

JP8

JP9

JP10

JP11

JP12

32KB

Open

1 & 2

2 & 3

2 & 3

2 & 3

64KB

Open

2 & 3

1 & 2

2 & 3

2 & 3

128KB

1 & 2

2 & 3

2 & 3

1 & 2

2 & 3

256KB

2 & 3

2 & 3

2 & 3

2 & 3

1 & 2

Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION

Type

JP1

JP2

80486SX

Open

pins 2 & 3 closed

80486DX/DX2

pins 1 & 2 closed

pins 1 & 2, 3 & 4 closed