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UNI-486WB

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