Processor

80386DX/80486SX/80486DX

Processor Speed

16/20/25/33/40/50(internal)/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

Speaker

J2

Turbo LED

J16

External battery

J4

Power LED & keylock

J18

Reset switch

J15

Speaker

J19

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

»

Monitor type select color

J9

pins 2 & 3 closed

Monitor type select monochrome

J9

pins 1 & 2 closed

»

Turbo switch enabled

J17

Open

Turbo switch normal operation

J17

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) 32K x 8

256KB

(4) 32K x 8

(4) 32K x 8

(1) 32K x 8

CACHE JUMPER CONFIGURATION

Size

J1

J2

J3

J13

J14

64KB

pins 2 & 3

pins 1 & 2

pins 1 & 2

pins 1 & 2

N/A

128KB

pins 2 & 3

pins 2 & 3

pins 1 & 2

pins 2 & 3

pins 1 & 2

256KB

pins 2 & 3

pins 2 & 3

pins 2 & 3

pins 1 & 2

pins 2 & 3

Note:Pins designated should be in the closed position.

CPU TYPE CONFIGURATION

Type

SW1/switch 1

SW1/switch 2

SW1/switch 3

SW1/switch 4

80386DX

On

On

Off

Off

80486SX

Off

Off

On

On

80486DX

On

On

Off

Off

CPU TYPE CONFIGURATION (CONT.)

Type

SW2/1

SW2/2

SW2/3

SW2/4

SW2/5

SW2/6

SW2/7

SW2/8

80386DX

On

On

On

On

Off

Off

On

On

80486SX

Off

Off

Off

Off

On

On

On

Off

80486DX

Off

Off

Off

Off

On

On

On

Off

CPU SPEED CONFIGURATION

Speed

SW3/switch 1

SW3/switch 2

SW3/switch 3

SW3/switch 4

16MHz

On

Off

On

On

20MHz

On

Off

On

Off

25MHz

On

Off

Off

Off

33MHz

On

Off

Off

On

40MHz

Off

On

Off

On

50i MHz

On

Off

Off

Off

50MHz

Off

On

Off

Off