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UM 486 II/486SX II

ELITEGROUP COMPUTER SYSTEMS, INC.

UM 486 II/486SX II

Processor

80486SX/80487SX/80486DX

Processor Speed

16/20/25/33/50MHz

Chip Set

UMC

Max. Onboard DRAM

32MB

Cache

64/128/256KB

BIOS

AMI

Dimensions

330mm x 218mm

I/O Options

None

NPU Options

4167

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

J1

Reset switch

J4

Turbo LED

J2

Speaker

J5

Turbo switch

J3

Power LED & keylock

J6

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

Monitor type select color

JP21

pins 2 & 3 closed

 

Monitor type select monochrome

JP21

pins 1 & 2 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

32MB

(4) 4M x 9

(4) 4M x 9

CACHE CONFIGURATION

Size

Bank 0

Bank 1

TAG

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

JP6

JP7

JP8

JP9

JP10

JP11

JP16

JP17

64KB

Open

Open

Open

Open

1 & 2

1 & 2

Open

1 & 2

128KB

Closed

Open

Closed

Open

2 & 3

1 & 2

1 & 2

2 & 3

256KB

Closed

Closed

Closed

Closed

2 & 3

2 & 3

2 & 3

1 & 2

Note:Pins designated should be in the closed position.

CPU TYPE CONFIGURATION

Type

JP2

JP3

JP5

JP20

80486SX

Open

pins 2 & 3 closed

pins 1 & 2 closed

Open

80487SX

Closed

pins 1 & 2 closed

pins 2 & 3 closed

Closed

80486DX

Closed

pins 1 & 2 closed

pins 1 & 2 closed

Open