ICL

AC41644/41647 MODELS E450/X450

Processor

Pentium

Processor Speed

75/90/100MHz

Chip Set

OPTI

Max. Onboard DRAM

128MB

Cache

256KB (on daughterboard)

BIOS

ICL

Dimensions

330mm x 200mm

I/O Options

PS/2 mouse port, parallel port, serial ports (2), network adapter, floppy drive interface, IDE interfaces (2), proprietary riser card slot, sound in, sound out

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

3.3V power connector

E#

IDE interface (primary)

J11

Keyboard and mouse PTC

J0

IDE interface (primary)

J12

Parallel port

J2

Network adapter

J13

Serial port 1

J3

CPU fan

J15

Serial port 2

J4

Microphone in

J16

PS/2 mouse port

J5

Speaker out

J17

Hard drive LED

J6

Unidentified

J18

Front panel LEDs

J7

Reset switch

JP1 pins 1 & 2

Chassis fan power

J8

Proprietary riser card slot

SL1

Power switch

J9

Cache expansion slot

SL2

Floppy drive interface

J10

   

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

»

Factory configured - do not alter

JP1 pins 9 & 10

Closed

»

Password disabled

JP1 pins 15 & 16

Open

 

Password enabled

JP1 pins 15 & 16

Closed

»

Factory configured - do not alter

JP1 pins 17 & 18

Closed

»

BIOS write protect enabled

JP1 pins 19 & 20

Open

 

BIOS write protect disabled

JP1 pins 19 & 20

Closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

8MB

(2) 1M x 36

NONE

16MB

(2) 1M x 36

(2) 1M x 36

16MB

(2) 2M x 36

NONE

24MB

(2) 1M x 36

(2) 2M x 36

32MB

(2) 2M x 36

(2) 2M x 36

32MB

(2) 4M x 36

NONE

40MB

(2) 1M x 36

(2) 4M x 36

48MB

(2) 2M x 36

(2) 4M x 36

64MB

(2) 4M x 36

(2) 4M x 36

72MB

(2) 1M x 36

(2) 8M x 36

80MB

(2) 2M x 36

(2) 8M x 36

96MB

(2) 4M x 36

(2) 8M x 36

128MB

(2) 8M x 36

(2) 8M x 36

CMOS MODE CONFIGURATION

Mode

JP1

Normal

pins 11 & 12 closed

Clear

pins 13 & 14 closed

CPU SPEED CONFIGURATION

Speed

JP1 pins 3 & 4

JP1 pins 5 & 6

JP1 pins 7 & 8

75MHz

Closed

Closed

Open

90MHz

Closed

Open

Closed

100MHz

Open

Closed

Open