DELL COMPUTER CORPORATION

SYSTEM V486/50/66 FS

Processor

80486DX2

Processor Speed

50(internal)/66(internal)MHz

Chip Set

LSI

Max. Onboard DRAM

64MB

Cache

128KB

BIOS

Unidentified

Dimensions

330mm x 218mm

I/O Options

Floppy drive interface, IDE interface, parallel interface, PS/2 mouse interface, serial ports (2), VGA feature connector

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

CN1

Floppy drive interface

CN6

IDE interface LED

CN2

Parallel port

CN7

Chassis fan power

CN3

Serial port

CN8

VGA feature connector

CN4

PS/2 mouse interface

CN9

IDE interface

CN5

   

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

»

Mouse connector enabled ( uses IRQ12)

J1

Closed

 

Mouse connector disabled

J1

Open

»

I/O address select (26Eh-26Fh)

J2

Closed

 

I/O address select (398h-399h)

J2

Open

»

Factory configured - do not alter

J3

Open

»

Factory configured - do not alter

J4

Closed

»

CMOS memory normal operation

J5

Closed

 

CMOS memory clear

J5

Open

»

Internal VGA enabled

J6

Closed

 

Internal VGA disabled

J6

Open

»

Factory configured - do not alter

J7

Open

»

Factory configured - do not alter

J8

Open

»

Factory configured - do not alter

J11

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) 1M x 36

(1) 4M x 36

NONE

NONE

24MB

(1) 1M x 36

(1) 1M x 36

(1) 4M x 36

NONE

28MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

(1) 4M x 36

32MB

(1) 4M x 36

(1) 4M x 36

NONE

NONE

36MB

(1) 1M x 36

(1) 4M x 36

(1) 4M x 36

NONE

40MB

(1) 1M x 36

(1) 1M x 36

(1) 4M x 36

(1) 4M x 36

48MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

NONE

52MB

(1) 1M x 36

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

64MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

CPU SPEED CONFIGURATION

Size

J9

J10

25MHz

Closed

Open

33MHz

Open

Closed

50iMHz

Closed

Open

66iMHz

Open

Closed