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SYSTEM 4XX/P NETPLEX

DELL COMPUTER CORPORATION

SYSTEM 4XX/P NETPLEX

Processor

80486SX/80486DX/80486DX2

Processor Speed

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

Chip Set

SIS

Max. Onboard DRAM

32MB

Cache

128KB

BIOS

Phoenix

Dimensions

330mm x 218mm

I/O Options

Bus mouse port, floppy drive interface, IDE interface, parallel port, riser card slot, serial ports (2), VGA feature connector, VGA port

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

Bus mouse port

CN1

VGA feature connector

CN6

Serial port 1

CN2

IDE interface LED

CN7

Serial port 2

CN3

Floppy drive interface

CN8

Parallel port

CN4

IDE interface LED

JP5

VGA port

CN5

Riser card slot

S1

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

VGA IRQ9 disabled

JP1

Open

 

VGA IRQ9 enabled

JP1

Closed

Monitor type select color

JP2

Closed

 

Monitor type select monochrome

JP2

Open

Password enabled

JP7

Closed

 

Password disabled

JP7

Open

PARALLEL PORT CONFIGURATION

Port

JP6

LPT 1/IRQ7

pins 1 & 2 closed

LPT 1/IRQ5

pins 2 & 3 closed

LPT 3/IRQ7

pins 1 & 2 closed

Disabled

Open

DRAM CONFIGURATION

Size

Bank 1

Bank 2

4MB

(1) 1M x 36

NONE

5MB

(1) 1M x 36

(1) 256K x 36

8MB

(1) 1M x 36

(1) 1M x 36

16MB

(1) 4M x 36

NONE

17MB

(1) 4M x 36

(1) 256K x 36

20MB

(1) 4M x 36

(1) 1M x 36

32MB

(1) 4M x 36

(1) 4M x 36

VIDEO RAM CONFIGURATION

Size

Bank 0

Bank 1

512KB

(4) 256KB x 4

NONE

1MB

(4) 256KB x 4

(4) 256KB x 4

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

CPU SPEED CONFIGURATION

CPU speed

JP3

25MHz

Closed

33MHz

Open

50iMHz

Closed

66iMHz

Open

CPU TYPE SELECT

CPU type

JP4 A-C

JP4D-F

JP4G-I

80486SX

Closed

Open

Open

80487SX

Open

Open

Closed

80486DX

Open

Closed

Open

80486DX2

Open

Closed

Open