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





4XX/M, 4XXS/M

DELL COMPUTER CORPORATION

4XX/M, 4XXS/M

Processor

80486SX/80486DX/80486DX2

Processor Speed

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

Chip Set

LSI

Max. Onboard DRAM

64MB

Cache

128KB (on external cache card)

BIOS

Phoenix

Dimensions

330mm x 218mm

I/O Options

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

PS/2 mouse port

CN1

IDE interface

CN8

Serial port 1

CN2

IDE interface LED

J1

Serial port 2

CN3

Chassis fan power

J2

Parallel port

CN4

External battery

J3

VGA port

CN5

Front panel connector

J4

VGA feature connector

CN6

External cache card slot

SL1

Floppy drive interface

CN7

   

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

External cache card not installed

JP1

Closed

 

External cache card installed

JP1

Open

Password enabled

JP2

Closed

 

Password disabled

JP2

Open

Factory configured - do not alter

JP3

Open

Flash BIOS write protect disabled

JP4

Closed

 

Flash BIOS write protect enabled

JP4

Open

On board VGA enbled

JP5

Closed

 

On board VGA disabled

JP5

Open

Factory configured - do not alter

JP6

Open

Factory configured - do not alter

JP7

Open

Factory configured - do not alter

JP10

Open

Factory configured - do not alter

JP11

Open

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

4MB

(1) 1M x 36

NONE

NONE

NONE

8MB

(1) 1M x 36

(1) 1M x 36

NONE

NONE

12MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

NONE

16MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

16MB

(1) 4M x 36

NONE

NONE

NONE

20MB

(1) 4M x 36

(1) 1M x 36

NONE

NONE

24MB

(1) 4M x 36

(1) 1M x 36

(1) 1M x 36

NONE

28MB

(1) 4M x 36

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

32MB

(1) 4M x 36

(1) 4M x 36

NONE

NONE

36MB

(1) 4M x 36

(1) 4M x 36

(1) 1M x 36

NONE

40MB

(1) 4M x 36

(1) 4M x 36

(1) 1M x 36

(1) 1M x 36

48MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

NONE

52MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

(1) 1M x 36

64MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

CPU SPEED CONFIGURATION

Speed

JP8

JP9

25MHz

Closed

Open

33MHz

Open

Closed

50iMHz

Closed

Open

66iMHz

Open

Closed

VIDEO MEMORY CONFIGURATION

Size

Bank 0

Bank 1

512KB

(4) 256K x 4

NONE

1MB

(4) 256K x 4

(4) 256K x 4

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