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





SYSTEMS 4XX/V & 4XX/DV

DELL COMPUTER CORPORATION

SYSTEMS 4XX/V & 4XX/DV

Processor

80486SX/80487SX/80486DX/ODP486SX/80486DX2

Processor Speed

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

Chip Set

Opti

Max. Onboard DRAM

64MB

Cache

128/256KB

BIOS

Unidentified

Dimensions

330mm x 218mm

I/O Options

32-bit VESA local bus slots (2), 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

VGA connector

CN8

Serial port 1

CN2

VGA feature connector

CN9

Serial port 2

CN3

IDE interface LED

CN11

External battery

CN4

Speaker

CN12

Parallel port

CN5

Power LED

CN13

IDE interface

CN6

Reset switch

CN14

Floppy drive interface

CN7

32-bit VESA Local bus slots

SL1, SL2

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

Built in VGA subsystem enabled

JP1

Closed

 

Built in VGA subsystem disabled

JP1

Open

Factory configured - do not alter

JP2

Open

Factory configured - do not alter

JP3

Closed

Factory configured - do not alter

JP4

Closed

Factory configured - do not alter

JP7

Closed

80486SX installed in PQFP

JP10

Open

 

80486SX not installed in PQFP

JP10

Closed

Factory configured - do not alter

JP11

Open

256K of cache memory installed

JP12

Closed

 

Zero or 128K of cache memory installed

JP12

Open

Note:The exact location of JP11 on system board is unidentified by the manufacturer.

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

CACHE CONFIGURATION

Size

Bank 0

Bank 1

TAG (U42)

TAG (U27)

0KB

NONE

NONE

NONE

NONE

128KB

(4) 32K x 8

NONE

(1) 16K x 1

(1) 32K x 8

256KB

(4) 32K x 8

(4) 32K x 8

(1) 16K x 1

(1) 32K x 8

CACHE JUMPER CONFIGURATION

Size

JP8

JP9

128KB

pins 1 & 2 closed

pins 1 & 2 closed

256KB

pins 2 & 3 closed

pins 2 & 3 closed

CPU TYPE CONFIGURATION

CPU Type

JP13

JP14

JP15

80486SX

Open

Open

pins 2 & 3 closed

80486DX

Closed

pins 1 & 2 closed

pins 1 & 2 closed

80486DX2

Closed

pins 1 & 2 closed

pins 1 & 2 closed

CPU SPEED CONFIGURATION

CPU type

CPU speed

JP5

JP6

80486SX

33MHz

Open

Closed

80486DX

33MHz

Open

Closed

80486DX2

50iMHz

Closed

Open

80486DX2

66iMHz

Open

Closed