Processor

80486SX/80486DX

Processor Speed

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

Chip Set

C & T PEAK DM

Max. Onboard DRAM

128MB

Cache

128KB

BIOS

AMI

Dimensions

339mm x 127mm

I/O Options

PS/2 mouse port, PS/2 keyboard connector

NPU Options

4167

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

J3

Power LED

J9

Speaker

J5

Reset switch

J10

Power LED & keylock

J6

PS/2 keyboard

J14

Front panel switches & LEDs

J8

PS/2 mouse

J15

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

»

Factory configured - do not alter

J1

pins 1 & 2 closed

»

Factory configured - do not alter

J2

Closed

»

Factory configured - do not alter

J7

pins 1 & 2 closed

»

CMOS memory normal operation

J4

Open

CMOS memory clear

J4

Closed

»

Monitor type select color

J11

pins 2 & 3 closed

Monitor type select monochrome

J11

pins 1 & 2 closed

»

PS/2 mouse disabled (IRQ12 free)

J12

Open

PS/2 mouse enabled at IRQ12

J12

Closed

»

Watchdog timer disabled

J13

pins 2 & 3 closed

Watchdog timer enabled

J13

pins 1 & 2 closed

»

DMA signal select active high

J16

pins 1 & 2 closed

DMA signal select active low

J16

pins 2 & 3 closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

1MB

(1) 256K x 36

NONE

NONE

NONE

2MB

(1) 512K x 36

NONE

NONE

NONE

3MB

(1) 512K x 36

(1) 256K x 36

NONE

NONE

4MB

(1) 512K x 36

(1) 512K x 36

NONE

NONE

4MB

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

5MB

(1) 512K x 36

(1) 512K x 36

(1) 256K x 36

NONE

6MB

(1) 512K x 36

(1) 512K x 36

(1) 512K x 36

NONE

7MB

(1) 512K x 36

(1) 512K x 36

(1) 512K x 36

(1) 256K x 36

8MB

(1) 1M x 36

(1) 1M x 36

NONE

NONE

8MB

(1) 2M x 36

NONE

NONE

NONE

9MB

(1) 2M x 36

(1) 256K x 36

NONE

NONE

10MB

(1) 2M x 36

(1) 512K x 36

NONE

NONE

12MB

(1) 2M x 36

(1) 512K x 36

(1) 512K x 36

NONE

13MB

(1) 2M x 36

(1) 512K x 36

(1) 512K x 36

(1) 256K x 36

16MB

(1) 2M x 36

(1) 2M x 36

NONE

NONE

16MB

(1) 4M x 36

NONE

NONE

NONE

17MB

(1) 4M x 36

(1) 256K x 36

NONE

NONE

18MB

(1) 2M x 36

(1) 2M x 36

(1) 512K x 36

NONE

19MB

(1) 4M x 36

(1) 512K x 36

(1) 256K x 36

NONE

20MB

(1) 2M x 36

(1) 2M x 36

(1) 1M x 36

NONE

32MB

(1) 8M x 36

NONE

NONE

NONE

40MB

(1) 8M x 36

(1) 2M x 36

NONE

NONE

64MB

(1) 8M x 36

(1) 8M x 36

NONE

NONE

96MB

(1) 8M x 36

(1) 8M x 36

(1) 4M x 36

(1) 4M x 36

128MB

(1) 8M x 36

(1) 8M x 36

(1) 8M x 36

(1) 8M x 36

Note: These are only some of the possible configurations. Memory must be installed in lower banks first, according to module capacity (highest to lowest).