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System 320SX

DELL COMPUTER CORPORATION

System 320SX

Processor

80386SX

Processor Speed

20MHz

Chip Set

VLSI

Max. Onboard DRAM

8MB

Cache

None (32KB on optional cache card)

BIOS

AMI

Dimensions

342mm x 185mm

I/O Options

Bus mouse, cache card/shunt card slot, floppy interface, IDE interface, parallel port, riser card slot, serial ports (2), VGA port

NPU Options

80387SX

CONNECTIONS

Purpose

Location

Purpose

Location

16-bit riser card

EXP1

Floppy drive interface

JFLOP

IDE interface LED

HD

IDE interface

JIDE

External battery

JBAT

Parallel port

JLPT1

Proprietary cache card/shunt card

JCACHE

Bus mouse port

JMOUSE

Serial port 1

JCOM1

Front panel status LCD

JVIEW

Serial port 2

JCOM2

VGA port

JVGA

VGA pass-through

JFEAT

Reset switch

JP1/pins 25 & 26

USER CONFIGURABLE SETTINGS

Function

JP1

Position

Factory test disabled

pins 1 & 2

Open

 

Factory test enabled

pins 1 & 2

Closed

Factory configured - do not alter

pins 3 & 4

Closed

Monitor type select color

pins 5 & 6

Closed

 

Monitor type select monochrome

pins 5 & 6

Open

Password check enabled

pins 7 & 8

Closed

 

Password check disabled

pins 7 & 8

Open

Late revision of IBM 5250 type network card installed

pins 9 & 10

Open

 

Early revision of IBM 5250 type network card installed

pins 9 & 10

Closed

Factory configured - do not alter

pins 11 & 12

Open

Factory configured - do not alter

pins 13 & 14

Closed

Monitor type select standard VGA

pins 15 & 16

Open

 

Monitor type select multi-frequency VGA

pins 15 & 16

Closed

Factory configured - do not alter

pins 17 & 18

Open

IOCHRDY signal disabled to IDE drive(s)

pins 19 & 20

pins 21 & 22

Closed

Open

 

IOCHRDY signal enabled to IDE drive(s)

pins 19 & 20

pins 21 & 22

Open

Closed

VGA interface enabled

pins 23 & 24

Closed

 

VGA interface disabled

pins 23 & 24

Open

Factory configured - do not alter

pins 25 & 26

Open

DRAM CONFIGURATION

Size

Bank 0

Bank 1

1MB

(1) 256K x 36

NONE

2MB

(1) 256K x 36

(1) 256K x 36

4MB

(1) 1M x 36

NONE

5MB

(1) 1M x 36

(1) 256K x 36

8MB

(1) 1M x 36

(1) 1M x 36

VRAM CONFIGURATION

Size

Bank 0

256KB

NONE

512KB

(2) 44256