DELL COMPUTER CORPORATION

OPTIPLEX 4XX/LE

Device Type Mainboard
Processor 80486SX2/80486DX2/80486DX4
Processor Speed 25/33/40/50(internal)/66(internal)/100(internal)
Chip Set VLSI
Video Chip Set Cirrus Logic
Maximum Onboard Memory 64MB
Maximum Video Memory 1MB
Cache 128KB
BIOS Unidentified
Dimensions Unidentified
I/O Options Floppy drive interface, IDE interface, parallel port, PS/2 mouse port, serial ports (2), VGA feature connector, VGA port, riser slot,

CONNECTIONS

Purpose

Location

Purpose

Location

VGA port

CN1

IDE interface

CN8

Parallel port

CN2

IDE interface LED 2

JP2

Serial port 1

CN3

Sound card connector

JP5

Serial port 2

CN4

Panel connector

JP6

PS/2 mouse port

CN5

IDE interface LED 1

JP7

VGA feature connector

CN6

Riser slot 1

SL1

Floppy drive interface

CN7

Riser slot 2

SL2


USER CONFIGURABLE SETTINGS

Function

Label

Position

»

Factory configured - do not alter

JP1

Open

»

Factory configured - do not alter

JP3

Open

»

Factory configured - do not alter

JP4

Pins 1 & 2 closed

»

Enable built-in speaker

JP5

Pins 1 & 2 closed

  Disable built-in speaker/send signals to sound card

JP5

Closed

»

Enable built-in VGA

JP9

Closed

  Disable built-in VGA

JP9

Open

»

Password feature enabled

JP10

Closed

  Password feature disabled

JP10

Open

»

Factory configured - do not alter

JP11

Open


SIMM CONFIGURATION

Size

Bank 0

Bank 1

4MB

(1) 1M x 36

None

8MB

(1) 1M x 36

(1) 1M x 36

16MB

(1) 2M x 36

(1) 2M x 36

16MB

(1) 4M x 36

None

24MB

(1) 4M x 36

(1) 2M x 36

32MB

(1) 4M x 36

(1) 4M x 36

32MB

(1) 8M x 36

None

64MB

(1) 8M x 36

(1) 8M x 36


CPU SPEED SELECTION

Speed

JP8

25MHz

Closed

33MHz

Open