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





EXPRESS

ADVANCED LOGIC RESEARCH, INC.

EXPRESS

Processor

80486SX/80487SX/80486DX/80486DX2

Processor Speed

25/33/40/50(internal)/66(internal)MHz

Chip Set

ALR

Max. Onboard DRAM

36MB

Cache

128/256KB

BIOS

Phoenix

Dimensions

330mm x 218mm

I/O Options

32-bit VESA local bus slot, floppy drive interface, IDE interface, parallel port, PS/2 mouse port, serial ports (2), VGA feature connector, VGA port

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

VGA port

CN1

VGA feature connector

CN8

Parallel port

CN2

IDE interface LED

J1

Serial port 2

CN3

Power LED & keylock

J2

Serial port 1

CN4

Speaker

J3

PS/2 mouse port

CN5

Reset switch

J4

IDE interface

CN6

32-bit VESA Local bus slot

SL1

Floppy drive interface

CN7

   

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

CMOS memory normal operation

JP3

Open

 

CMOS memory clear

JP3

Closed

Port select 210H

W1

Closed

 

Port select 310H

W1

Open

On board VGA enabled

W2

Closed

 

On board VGA disabled

W2

Open

Factory configured - do not alter

W5

Open

SIMM type select single

W6

Open

 

SIMM type select double

W6

Closed

Video mode select standard

W7

Open

 

Video mode select VESA

W7

Closed

Video type select non interlaced

W8

Open

 

Video type select interlaced

W8

Closed

Monitor type select color

W9

Closed

 

Monitor type select monochrome

W9

Open

Factory configured - do not alter

W19

Open

Factory configured - do not alter

W28

Open

80486 CPU installed

W29

Closed

 

80486 CPU not installed

W29

Open

Note: The location of W5 is unknown.

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

4MB

(8) 512K x 8

NONE

NONE

8MB

(8) 512K x 8

(1) 1M x 36

NONE

12MB

(8) 512K x 8

(1) 1M x 36

(1) 1M x 36

20MB

(8) 512K x 8

(1) 4M x 36

NONE

24MB

(8) 512K x 8

(1) 1M x 36

(1) 4M x 36

36MB

(8) 512K x 8

(1) 4M x 36

(1) 4M x 36

Note: Bank 0 is factory installed and is not configurable.

CACHE CONFIGURATION

Size

Bank 0

Bank 1

TAG

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

W13

W16

W17

W18

128KB

pins 2 & 3 closed

pins 1 & 2 closed

Open

Closed

256KB

pins 1 & 2 closed

pins 2 & 3 closed

Closed

Closed

CPU TYPE CONFIGURATION

Type

W11

W12

W24

W27

80486SX (PQFP)

Closed

pins 2 & 3 closed

Open

Open

80486SX (PGA)

Open

pins 1 & 2 closed

Open

Closed

80487SX (PGA)

Closed

pins 1 & 2 closed

pins 2 & 3 closed

Closed

80486DX (PQFP)

Closed

pins 2 & 3 closed

Open

Open

80486DX (PGA)

Closed

pins 1 & 2 closed

pins 1 & 2 closed

Closed

CPU SPEED CONFIGURATION

Speed

W20

W21

W22

W23

25MHz

Open

Closed

Open

Closed

33MHz

Open

Open

Closed

Closed

40MHz

Open

Closed

Open

Open

50iMHz

Open

Closed

Open

Closed

66iMHz

Open

Open

Closed

Closed