...because we can't all be on the bleeding edge...





ISA-486SI

ASUS COMPUTER INTERNATIONAL

ISA-486SI

   

Processor

80486SX/80487SX/80486DX/ODP486SX/80486DX2

Processor Speed

20/25/33/50(internal)/50/66(internal)MHz

Chip Set

SIS

Max. Onboard DRAM

32MB

Cache

64/128/256KB

BIOS

AMI

Dimensions

234mm x 221mm

I/O Options

None

NPU Options

4167

   

CONNECTIONS

Purpose

Location

Purpose

Location

Turbo LED

CON1

Turbo switch

CON4

Power LED & keylock

CON2

Reset switch

CON5

Speaker

CON3

   

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

CPU speed select iOSC/1

JP1

pins 1 & 2 closed

 

CPU speed select iOSC/2

JP1

pins 2 & 3 closed

Monitor type select monochrome/other

JP2

pins 2 & 3 closed

 

Monitor type select CGA

JP2

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

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

CJ1

CJ2

CJ3

64KB

pins 2 & 3 closed

pins 2 & 3 closed

Open

128KB

pins 1 & 2 closed

Open

Closed

256KB

pins 1 & 2 closed

pins 1 & 2 closed

Open

CPU TYPE CONFIGURATION

Type

CPJ1

CPJ2

80486SX

Open

pins 2 & 3 closed

80487SX

pins 2 & 3 closed

pins 1 & 2 and 3 & 4 closed

ODP486SX

pins 2 & 3 closed

pins 1 & 2 and 3 & 4 closed

80486DX

pins 1 & 2 closed

pins 1 & 2 and 3 & 4 closed

80486DX2

pins 1 & 2 closed

pins 1 & 2 and 3 & 4 closed