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DIMENSION 386SX/25

DELL COMPUTER CORPORATION

DIMENSION 386SX/25

Processor

80386SX

Processor Speed

25MHz

Chip Set

VLSI Topcat

Max. Onboard DRAM

16MB

SRAM Cache

None

BIOS

AMI

Dimensions

330mm x 218mm

I/O Options

Floppy drive interface, IDE interface, Bus mouse port

parallel port, serial port (2), VGA port

NPU Options

80387SX

CONNECTIONS

Purpose

Location

Purpose

Location

Serial port (COM A)

P3

VGA port

P10

Parallel port

P4

Reset switch

P11

Floppy drive interface

P5

Speaker

P12

IDE interface

P6

Power LED & keylock

P13

Serial port (COM B)

P7

Turbo LED

P14

Bus mouse

P9

IDE interface LED

P15

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

VGA port enabled

JP1

JP2

pins 2 & 3 closed

pins 1 & 2 closed

 

VGA port disabled

JP1

JP2

pins 1 & 2 closed

pins 2 & 3 closed

Single IDE drive installed

JP3

pins 1 & 2 closed

 

Dual IDE drive installed

JP3

pins 2 & 3 closed

Pipeline mode enabled

JP4

pins 2 & 3 closed

 

Pipeline mode disabled

JP4

pins 1 & 2 closed

Floppy drive disk change signal disabled

JP5

pins 1 & 2 closed

 

Floppy drive disk change signal enabled

JP5

pins 2 & 3 closed

Monitor type select color

JP6

pins 1 & 2 closed

 

Monitor type select monochrome

JP6

pins 2 & 3 closed

CMOS memory normal operation

JP7

pins 2 & 3 closed

 

CMOS memory clear

JP7

pins 1 & 2 closed

Monitor type select Non-MultiSync I

SW1/switch 1

open

 

Monitor type select MultiSync I

SW1/switch 1

closed

VGA style select PS/2

SW1/switch 2

closed

 

VGA style select AT

SW1/switch 2

open

Select 1024 x 768 interlaced

SW1/switch 5

open

 

Select 1024 x 768 non-interlaced

SW1/switch 5

closed

REFRESH RATE CONFIGURATION

Mode 800 x 600

SW1/switch 3

SW1/switch 4

16 colors @ 72Hz/256 colors @ 60Hz

open

open

16 colors @ 60Hz/256 colors @ 60Hz

open

closed

16 colors @ 72Hz/256 colors @ 56Hz

closed

open

16 colors @ 56Hz/256 colors @ 56 Hz

closed

closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

1MB

(2) 256K x 9

(2) 256K x 9

2MB

(2) 1M x 9

NONE

4MB

(2) 1M x 9

(2) 1M x 9

8MB

(2) 4M x 9

NONE

10MB

(2) 4M x 9

(2) 1M x 9

16MB

(2) 4M x 9

(2) 4M x 9