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Table 2-1. System Board Connectors and Sockets

Connector or

 

Socket

Description

 

 

BT1

Battery socket

CN1

Keyboard and mouse connectors

CN2

DC main power input connector

CN3

Parallel port connector (sometimes referred to as LPT1), video

 

connector, and serial port connector

CN4

Front audio/USB board audio signal cable connector

CN5

USB port connector, headphone connector, and microphone

 

connector

CN6

USB port connector

CN7

Secondary IDE interface connector for optical drive

CN8

Primary IDE interface connector

CN12

Front audio/USB board interface connector

CN13

Audio signal cable connector

CN16

Diskette-drive interface connector

DIMMn

DIMM socket

FN1

Processor fan connector

JP1

Power button connector

JP2

Power-button indicator connector

JP3

Hard-disk drive activity indicator connector

JP6

Password jumper

JP7

Boot-block select jumper

JPX1

Processor mode jumper

JPX2

NVRAM jumper

LED1

System board power indicator

PH1

Line-out connector

SL1

Riser-board connector

U9

Microprocessor socket

 

 

NOTE: The Glossary in the system Help defines abbreviations and acronyms.

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Installing Upgrades on the System Board 2-7

Page 27
Image 27
Dell 900 manual System Board Connectors and Sockets