ASUS COMPUTER INTERNATIONAL

80486DX-3350

Processor

80486SX/80487SX/80486DX

Processor Speed

33/50MHz

Chip Set

Symphony

Max. Onboard DRAM

64MB

Cache

64/128/256KB

BIOS

AMI/Award

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

»

Cache read wait states select 2-1-1-1 (33MHz CPU)

J9

Open

 

Cache read wait states select 3-2-2-2 (50MHz CPU)

J9

pins 1 & 2 closed

»

Cache write wait states select 0 (33MHz CPU)

J9

pins 3 & 4 closed

 

Cache write wait states select 1 (50MHz CPU)

J9

Open

»

Monitor type select color

J10

Closed

 

Monitor type select monochrome

J10

Open

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

1MB

(4) 256K x 9

NONE

NONE

NONE

2MB

(4) 256K x 9

(4) 256K x 9

NONE

NONE

3MB

(4) 256K x 9

(4) 256K x 9

(4) 256K x 9

NONE

4MB

(4) 256K x 9

(4) 256K x 9

(4) 256K x 9

(4) 256K x 9

4MB

(4) 1M x 9

NONE

NONE

NONE

5MB

(4) 1M x 9

(4) 256K x 9

NONE

NONE

6MB

(4) 1M x 9

(4) 256K x 9

(4) 256K x 9

NONE

7MB

(4) 1M x 9

(4) 256K x 9

(4) 256K x 9

(4) 256K x 9

8MB

(4) 1M x 9

(4) 1M x 9

NONE

NONE

9MB

(4) 1M x 9

(4) 1M x 9

(4) 256K x 9

NONE

10MB

(4) 1M x 9

(4) 1M x 9

(4) 256K x 9

(4) 256K x 9

12MB

(4) 1M x 9

(4) 1M x 9

(4) 1M x 9

NONE

13MB

(4) 1M x 9

(4) 1M x 9

(4) 1M x 9

(4) 256K x 9

16MB

(4) 1M x 9

(4) 1M x 9

(4) 1M x 9

(4) 1M x 9

16MB

(4) 4M x 9

NONE

NONE

NONE

17MB

(4) 4M x 9

(4) 256K x 9

NONE

NONE

18MB

(4) 4M x 9

(4) 256K x 9

(4) 256K x 9

NONE

19MB

(4) 4M x 9

(4) 256K x 9

(4) 256K x 9

(4) 256K x 9

20MB

(4) 4M x 9

(4) 1M x 9

NONE

NONE

21MB

(4) 4M x 9

(4) 1M x 9

(4) 256K x 9

NONE

22MB

(4) 4M x 9

(4) 1M x 9

(4) 256K x 9

(4) 256K x 9

24MB

(4) 4M x 9

(4) 1M x 9

(4) 1M x 9

NONE

25MB

(4) 4M x 9

(4) 1M x 9

(4) 1M x 9

(4) 256K x 9

28MB

(4) 4M x 9

(4) 1M x 9

(4) 1M x 9

(4) 1M x 9

32MB

(4) 4M x 9

(4) 4M x 9

NONE

NONE

33MB

(4) 4M x 9

(4) 4M x 9

(4) 256K x 9

NONE

34MB

(4) 4M x 9

(4) 4M x 9

(4) 256K x 9

(4) 256K x 9

36MB

(4) 4M x 9

(4) 4M x 9

(4) 1M x 9

NONE

37MB

(4) 4M x 9

(4) 4M x 9

(4) 1M x 9

(4) 256K x 9

40MB

(4) 4M x 9

(4) 4M x 9

(4) 1M x 9

(4) 1M x 9

48MB

(4) 4M x 9

(4) 4M x 9

(4) 4M x 9

NONE

49MB

(4) 4M x 9

(4) 4M x 9

(4) 4M x 9

(4) 256K x 9

52MB

(4) 4M x 9

(4) 4M x 9

(4) 4M x 9

(4) 1M x 9

64MB

(4) 4M x 9

(4) 4M x 9

(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

JS1

JS2

JS3

JS4

JS5

JS6

JS7

64KB

1 & 2

1 & 2

1 & 2

1 & 2

1 & 2

1 & 2

1 & 2

128KB

2 & 3

2 & 3

2 & 3

2 & 3

2 & 3

2 & 3

1 & 2

256KB

1 & 2

1 & 2

1 & 2

2 & 3

2 & 3

2 & 3

2 & 3

Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION

Type

J8

80486SX

pins 1 & 2 closed

80487SX

pins 2 & 3 closed

80486DX

pins 2 & 3 closed

CPU SPEED CONFIGURATION

Speed

J7

J9

33MHz

pins 1 & 2 closed

Open

50MHz

pins 2 & 3 closed

pins 5 & 6 closed