Processor

80386DX

Processor Speed

33/40MHz

Chip Set

UMC

Max. Onboard DRAM

32MB

Cache

64/128/256KB

BIOS

AMI

Dimensions

330mm x 220mm

I/O OPTIONS

32-bit external memory card slot

NPU Options

80387/3167

CONNECTIONS

Purpose

Location

Purpose

Location

Reset switch

J1 and J19

Power LED & keylock

J5

Turbo LED

J2

External battery

J23

Turbo switch

J3 and J22

32-bit external memory card

S1

Speaker

J4

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

»

Factory configured - do not alter

J16

open

»

Monitor type select color

J21

closed

Monitor type select monochrome

J21

open

»

Battery select external

J24

pins 1 & 2 closed

Battery select internal

J24

pins 2 & 3 closed

»

CMOS memory normal operation

JP101

pins 1 & 2 closed

CMOS memory clear

JP101

pins 2 & 3 closed

Note: The location of Jumper J16 varies and may not be present on later versions.

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

NPU TYPE CONFIGURATION

NPU

OSC1

J12

J15

J17

J18

Not installed

N/A

open

open

open

open

Synchronous

N/A

open

pins 1 & 2

closed

closed

80387-25

50MHz

closed

pins 2 & 3

closed

closed

80387-33

66MHz

closed

pins 2 & 3

closed

closed

80387-40

80MHz

closed

pins 2 & 3

closed

closed

Note: Pins designated should be in the closed position.

CACHE CONFIGURATION

Size

Max. Cacheable RAM

Cache CACHE

Location

TAG

64KB

16MB

(8) 8K x 8

Banks 0 & 1

(1) 8K x 8

128KB

32MB

(4) 32K x 8

Bank 0

(1) 8K x 8

256KB

64MB

(8) 32K x 8

Banks 0 & 1

(1) 32K x 8

CACHE JUMPER CONFIGURATION

Jumper

64KB

128KB

256KB

J6

pins 1 & 2 closed

pins 2 & 3 closed

pins 2 & 3 closed

J7

pins 1 & 2 closed

pins 1 & 2 closed

pins 2 & 3 closed

J8

open

closed

closed

J9

open

open

closed

J10

open

open

closed

J11

open

closed

closed

J13

pins 1 & 2 closed

pins 2 & 3 closed

pins 1 & 2 closed

J14

open

pins 1 & 2 closed

pins 2 & 3 closed