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System 220e

DELL COMPUTER CORPORATION

System 220e

Processor

80286

Processor Speed

20MHz

Chip Set

VLSI

Max. Onboard DRAM

8MB

Cache

None

BIOS

Phoenix

Dimensions

362mm x 182mm

I/O Options

Floppy drive interface, IDE interface, parallel port, riser card slot, serial ports (2), VGA port

NPU Options

80287

CONNECTIONS

Purpose

Location

Purpose

Location

VGA port

CN1

Floppy drive interface

FDD

Parallel port

CN2

IDE interface

IDE

Serial port 2

CN3

VGA pass-through

JFEAT

Serial port 1

CN4

Power LED & keylock

P6

16-bit riser card

EXP

Reset switch

W12

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

Monitor type select color

W1

Closed

 

Monitor type select monochrome

W1

Open

Factory test disabled

W2

Open

 

Factory test enabled

W2

Closed

Factory configured - do not alter

W3

Open

Factory configured - do not alter

W4

Open

Serial port 2 enabled (IRQ4)

W5 pins 1 & 2

Closed

 

Serial port 2 disabled (IRQ4 not used)

W5 pins 1 & 2

Open

Serial port 1 enabled (IRQ3)

W5 pins 3 & 4

Closed

 

Serial port 1 disabled (IRQ3 not used)

W5 pins 3 & 4

Open

Factory configured - do not alter (IRQ5 not used)

W5 pins 5 & 6

Open

Parallel port enabled (IRQ7)

W5 pins 7 & 8

Closed

 

Parallel port disabled (IRQ7 not used)

W5 pins 7 & 8

Open

IDE interface enabled

W6

Closed

 

IDE interface disabled

W6

Open

Floppy interface enabled

W7

Closed

 

Floppy interface disabled

W7

Open

Factory configured - do not alter

W8

pins 2 & 3 closed

IDE drive installed select 1:1 interleave "Type B"

W9

pins 1 & 2 closed

 

IDE drive installed select 3:1 interleave "Type A"

W9

pins 2 & 3 closed

VGA port enabled

W10

pins 1 & 2 closed

 

VGA port disabled

W10

pins 2 & 3 closed

Tri-state diagnostic signal indicates true drive state

W11

pins 2 & 3 closed

 

Tri-state diagnostic signal forced to "passed diagnostic"

W11

pins 1 & 2 closed

Factory configured - do not alter

W13

pins 1 & 2 closed

BIOS type select 27256

W14

pins 2 & 3 closed

 

BIOS type select 27512

W14

pins 1 & 2 closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

1MB

(4) 256K x 9

NONE

2MB

(4) 256K x 9

(4) 256K x 9

4MB

(4) 1M x 9

NONE

5MB

(4) 1M x 9

(4) 256K x 9

8MB

(4) 1M x 9

(4) 1M x 9

DRAM JUMPER CONFIGURATION

Type

W15

W16

Memory recognized by system select total amount installed

pins 1 & 2 closed

pins 2 & 3 closed

Memory recognized by system select only 256KB

pins 2 & 3 closed

pins 1 & 2 closed