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





SYSTEM 486/T

DELL COMPUTER CORPORATION

SYSTEM 486/T

Processor

80486SX/80487SX/80486DX/ODP486SX/80486DX2/ODP586SX

Processor Speed

16/20/25/32(internal)/33/40(internal)/40/50(internal)/66(internal)

Chip Set

Headland

Max. Onboard DRAM

64MB

SRAM Cache

128KB (on optional card)

BIOS

AMI

Dimensions

330mm x 218mm

I/O Options

Floppy drive interface, IDE interface, bus mouse port

parallel port, serial port (2), VGA feature connector, VGA port

video memory module connection

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

VGA port

C1

External cache card

S1

Bus mouse

C2

External battery

J1

Parallel port

JPAR

IDE interface LED

J2

Serial port 1 & 2

JCOM

Speaker

J3

Floppy drive interface

JFLOP

Fan

J4

IDE drive interface

JIDE

Video memory upgrade module

JVMEM1

VGA feature connector

JFEAT

Video memory upgrade module

JVMEM2

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

External cache enabled

JCACHE

closed

 

External cache disabled

JCACHE

open

Password option enabled

EPWD

closed

 

Password option disabled

EPWD

open

Factory configured - do not alter

IOALT

open

Flash BIOS upgrade enabled

EFLU

closed

 

Flash BIOS upgrade disabled (BIOS write protected)

EFLU

open

On board VGA interface enabled

EVGA

closed

 

On board VGA interface disabled

EVGA

open

CPU SPEED CONFIGURATION (JP1)

Speed

pins 1 & 2

pins 3 & 4

pins 5 & 6

pins 7 & 8

pins 9 & 10

16MHz

closed

open

open

open

open

20MHz

open

closed

open

open

open

25MHz

open

open

closed

open

open

33MHz

open

open

open

closed

open

40MHz

open

open

open

open

closed

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

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

64MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36