106, 108, 109, 110, 111, 113, 114, 115, 119, 120, 121 | Dell U7021

	Processor	103
	Removing the Processor	103
	Installing the Processor	106
	Front Panel	108
	Removing the Front Panel	108
	Replacing the Front Panel	109
	Drive Door	110
	Removing the Drive Door	110
	Replacing the Drive Door	111
	Battery	113
	Replacing the Battery	113
	Closing the Computer Cover	114
6	Appendix
	Specifications	115
	System Setup	119
	Overview	119
	Entering System Setup	120
	System Setup Options	121
	Boot Sequence	124
	Clearing Forgotten Passwords	126
	Clearing CMOS Settings	127
	Cleaning Your Computer	127
	Computer, Keyboard, and Monitor	127
	Mouse	128
	Floppy Drive	128
	CDs and DVDs	128
	Dell Technical Support Policy (U.S. Only)	129
	Definition of "Dell-Installed" Software and Peripherals	129
	Definition of "Third-Party" Software and Peripherals	129

Contents

7

Image 7

Dell U7021, WHL manual 106, 108, 109, 110, 111, 113, 114, 115, 119, 120, 121, 124, 126, 127, 128

Contents

W . d e l l . c o m s u p p o r t . d e l l . c o m March U7021 Contents Optimizing Performance Restoring the Computer to an Earlier Operating State Using Microsoft Windows XP System RestoreResolving Software and Hardware Incompatibilities 102 Removing and Installing Parts 110 106108 109 131 130 Finding Information Dell Product Information Guide Setup Diagram Click the topic that describes your problem Warranty, and repair informationSpecifications, and white papers How to use Windows XP Finding Information Opening the Drive Door Setting Up and Using Your Computer Badge Changing the Front-Panel Light Color Connecting Two Monitors With VGA Connectors Connecting Two Monitors TV-OUT connector VGA blue connector Connecting a TVOptional DVI adapter Changing the Display Settings About Your RAID ConfigurationAbout Serial ATA Drives Segment RAID LevelHard drive Setting Your Computer to RAID-Enabled Mode Configuring Your Computer for RAID Creating a RAID Level 0 Configuration Configuring for RAID Using the IntelR Option ROM UtilityCreating a RAID Level 1 Configuration Deleting a RAID Volume Creating a RAID 1 Volume Creating a RAID 0 Volume Migrating to a RAID 0 Volume On the Delete RAID Volume Wizard screen, click Next To Mark a Drive as a Spare Hard Drive Migrating to a RAID 1 VolumeClick Reset Hard Drive to Non-RAID Creating a Spare Hard Drive Transferring Information to a New Computer Rebuilding a Degraded RAID 1 Volume Playing a CD or DVD Playing CDs and MoviesNext DVD player includes the following basic buttons Go to the previous title or chapter Eject Adjusting the VolumeAdjusting the Picture Copying CDs and DVDs Using Blank CD-Rs, CD-RWs, DVD+Rs, and DVD+RWs How to Copy a CD or DVDClick Exact Copy Click Checklist for creating a network Network Setup WizardHelpful Tips Overview Power ManagementStandby Mode Hibernate Mode Power Schemes Tab Power Options Properties Hibernate Tab Advanced Tab Setting Up and Using Your Computer Optimizing Performance Hyper-ThreadingOverclocking Click Hardware and click Device Manager PCI Express Cards Solving Problems Troubleshooting TipsBattery Problems Drive Problems Problems writing to a CD/DVD-RW drive CD and DVD drive problems Hard drive problems Mail, Modem, and Internet Problems Use these characters in filenames Error Messages Keyboard Problems Ieee 1394 Device Problems Program stops responding Lockups and Software ProblemsComputer does not start up Computer stops responding Solid blue screen appears Other software problemsProgram crashes repeatedly Program is designed for an earlier Windows operating system Mouse Problems Memory Problems Network Problems Power Problems Scanner Problems Printer Problems No sound from speakers Sound and Speaker Problems N T H E S P E a K E R D I a G N O S T I C S No sound from headphones If the screen is blank Video and Monitor ProblemsIf the screen is difficult to read J U S T T H E W I N D O W S D I S P L a Y S E T T I N G S Solving Problems Has occurred Button Diagnostic LightsElectrical outlet and press the power Advanced Troubleshooting If the problem persists, contact Dell Normally, reinstall an additionalIdentified a faulty module or If available, install properly working Occurred Error exists Requirements exist seeYour computer see Determine if a conflict exists by Drive see Dell DiagnosticsWhen to Use the Dell Diagnostics Hard drive, CD drive, and DVD Starting the Dell Diagnostics From the ResourceCD Starting the Dell Diagnostics From Your Hard Drive Dell Diagnostics Main Menu Drivers What Is a Driver?Identifying Drivers Windows XP Reinstalling DriversUsing Windows XP Device Driver Rollback Using the ResourceCD Manually Reinstalling Drivers Using Microsoft Windows XP System Restore Undoing the Last System Restore Creating a Restore PointRestoring the Computer to an Earlier Operating State Enabling System Restore Using Dell PC Restore by Symantec Resolving Software and Hardware Incompatibilities Reinstalling Microsoft Windows XPBefore You Begin Booting From the Operating System CD Reinstalling Windows XPWindows XP Setup When the Welcome to Microsoft screen appears, click Next Turning Off Your Computer Removing and Installing PartsBefore You Begin Recommended Tools Before Working Inside Your Computer Press to turn on the computer Open the door to use the front-panel connectorsFront and Back View of the Computer Front View Front View Doors Open Back View One x16 slot and one x1 slot Opening the Computer Cover Floppy drive CD/DVD drive Processor fan Power supply fansSystem board Power supply Removing and Installing Parts Inside View of Your Computer System Board Components DDR2 Memory Overview Memory Addressing Memory With 4-GB Configurations Installing Memory Notch Memory module Cutouts Crossbar Securing clips Connector Removing Memory Cards PCI Cards Installing a PCI Card Not fully seated card Fully seated card Retention arm Alignment guide Alignment bar Filler bracket Removing a PCI Card Card slot PCI Express CardsPCI Express Card PCI Express Tab Installing a PCI Express Card Not fully seated card Fully seated card Retention arm Alignment guide Alignment bar Filler bracket Removing a PCI Express Card Drives General Installation GuidelinesFloppy drive CD/DVD drives Hard drives Drive Interface Connectors Connecting Drive CablesSerial ATA Connector Interface cable Interface connector Removing a Hard Drive Power Cable ConnectorPower cable Hard Drive Drive Bracket rails Screws Removing and Installing Parts Installing a Hard Drive Hard-drive cable Power cable Tabs Removing and Installing Parts Adding a Second Hard Drive Rail tabs Floppy DriveFirst hard drive in lower bay Hard drive bay Data cable power cable Tabs Floppy drive Installing a Floppy DriveRemoving a Floppy Drive Drive Bracket rails Screws Removing a CD/DVD Drive CD/DVD Drive Power cable Tabs Data cable CD/DVD drive Installing a CD/DVD Drive 100 101 Shroud release lever Anchor tabs Processor Airflow ShroudRemoving the Processor Airflow Shroud 102 103 Installing the Processor Airflow ShroudProcessor Removing the Processor Anchor tabs Shroud release lever 104 105 106 Installing the ProcessorProcessor cover Socket Release lever 107 Removing the Front Panel Front Panel108 109 Replacing the Front Panel Removing the Drive Door Drive Door110 111 Replacing the Drive DoorTop bracket hinge Bottom bracket hinge Hinge tab Door hinges Door bracket 112Door 113 BatteryReplacing the Battery Battery Battery socket Tab Removing and Installing Parts 114 Closing the Computer Cover 115 Specifications Expansion Bus 116Drives Controls and Lights Connectors117 Center/Low Frequency Effects LFE channel two front-panel 118 PowerLocated in the Product Information 10 to 35C 50 to 95F System Setup119 Environmental System Setup Screens Entering System Setup120 121 System Setup Options 122 123 124 Boot SequenceOption Settings Changing Boot Sequence for the Current Boot 125 Changing Boot Sequence for Future Boots 126 Clearing Forgotten Passwords Cleaning Your Computer Clearing Cmos SettingsComputer, Keyboard, and Monitor 128 MouseFloppy Drive CDs and DVDs Definition of Third-Party Software and Peripherals Definition of Dell-Installed Software and PeripheralsDell Technical Support Policy U.S. Only FCC Notices U.S. Only 130 Class a Class B FCC Identification Information Contacting Dell131 132 133 134 135 136 137 Fax/Sales Fax 138Ireland Sales Sales dial within U.K. only 139 140 141 142 143 Switchboard SalesCountries Sales Penang, Malaysia Appendix 144 145 PowerConnect, and PowerVault Transaction SalesTrinidad/Tobago General Support Turks and Caicos Islands 146 147 Appendix Index 149 Index 151 Reinstalling Windows XP Index 153 Wizard, 43 reinstalling, 11, 64 scanner, 48 System Restore 154