Dell C521 specifications About Your Computer, Front View

Page 2

Back to Contents Page

About Your Computer

Dell™ Dimension™ C521 Service Manual

Front View

Back View of the Computer

Back Panel I/O Connectors

Front View

1

cover release

Use this latch to remove the cover. See Removing the Computer Cover.

 

latch

 

 

 

 

2

Service Tag

Use to identify your computer when you access the Dell Support website

 

 

or call support.

3

FlexBay drive

Can contain an optional floppy drive or optional Media Card Reader.

 

 

 

4

CD or DVD

The drive light is on when the computer reads data from the CD or DVD

 

activity light

drive.

 

 

 

5

CD or DVD

Press to eject a disk from the CD or DVD drive.

 

eject button

 

6

microphone

Use the microphone connector to attach a personal computer

 

connector

microphone for voice or musical input into a sound or telephony

 

 

program.

 

 

 

7

headphone

Use the headphone connector to attach headphones and most kinds of

 

connector

speakers.

 

 

 

8

LAN activity

This light indicates that a LAN (Local Area Network) connection is

 

light

established.

9

diagnostic

Use the lights to help you troubleshoot a computer problem based on

 

lights (4)

the diagnostic code. For more information, see Diagnostic Lights.

10

USB 2.0

Use the front USB connectors for devices that you connect occasionally,

 

connectors (2)

such as joysticks or cameras, or for bootable USB devices. See System

 

 

Setup Options for more information on booting to a USB device.

 

 

It is recommended that you use the back USB connectors for devices

 

 

that typically remain connected, such as printers and keyboards.

 

 

 

11

power button

Press to turn on the computer.

 

 

NOTICE: To avoid losing data, do not use the power button to

 

 

turn off the computer. Instead, perform an operating system

 

 

shutdown.

 

 

 

12

hard-drive

The hard drive activity light is on when the computer reads data from or

 

activity light

writes data to the hard drive. The light might also be on when a device

 

 

such as a CD player is operating.

 

 

 

13

vents

To ensure adequate cooling, do not block any of the vents.

 

 

 

Image 2
Contents September 2006 Rev. A00 About Your Computer Front ViewBack Panel I/O Connectors Back View of the ComputerBack to Contents Recommended Tools Before You BeginGetting Started Turning Off Your ComputerPage Replacing the Computer Cover Removing the Computer Cover DDR2 Memory Overview Removing and Installing PartsMemory Installing Memory Cards Removing MemoryInstalling an Expansion Card Removing an Expansion Card Drives Power Cable Connector General Installation GuidelinesDrive Interface Connectors Connecting and Disconnecting Drive CablesRemoving a CD/DVD Drive Installing a CD/DVD DriveCD/DVD Drive Floppy Drive Removing a Floppy DriveInstalling a Floppy Drive Media Card Reader Removing a Media Card ReaderInstalling a Media Card Reader Hard Drive Removing a Hard DriveInstalling a Hard Drive Battery Replacing the BatteryProcessor Removing the ProcessorInstalling the Processor Page Power Supply Replacing the Power SupplyFront I/O Panel Removing the Front I/O PanelRemoving the Fan Assembly Fan AssemblyInstalling the Front I/O Panel Removing the System Board Installing the Fan AssemblySystem Board Replacing the System Board Page Specifications Controls and Lights ConnectorsDrives Environmental PowerPhysical Overview System SetupEntering System Setup OverviewSystem Setup Options System64MB Boot Menu Post BehaviorClearing Forgotten Passwords and Cmos Settings Jumper Locations Clearing Password SettingsFlashing the Bios Clearing Cmos SettingsSystem Board Components Technical OverviewInside View of Your Computer Jumper Settings Jumper Setting DescriptionPin Number Signal name AWG Wire Power Supply DC Connector Pin AssignmentsDC Power Connector P1 DC Power Connector P4 DC Power Connector P2DC Power Connector P3 DC Power Connector P5 and P6Black +12 VDC Yellow September 2006 Rev. A00 When to Use the Dell Diagnostics TroubleshootingDell Diagnostics Dell Diagnostics Main MenuProblem Description Suggested Resolution Diagnostic LightsPower Light Problem Description Suggested Resolution System LightsBeep Codes Code Cause