133 | Dell U7021, WHL specs

Country (City)	Department Name or Service Area,	Area Codes,
International Access Code	Website and E-Mail Address	Local Numbers, and
Country Code		Toll-Free Numbers
City Code

Barbados	General Support	1-800-534-3066

Belgium (Brussels)	Website: support.euro.dell.com
International Access Code: 00	E-mail for French Speaking Customers:
Country Code: 32	support.euro.dell.com/be/fr/emaildell/
Country Code: 32
City Code: 2	Technical Support	02 481 92 88
City Code: 2
	Technical Support Fax	02 481 92 95
	Customer Care	02 713 15 .65
	Corporate Sales	02 481 91 00
	Fax	02 481 92 99
	Switchboard	02 481 91 00

Bermuda	General Support	1-800-342-0671

Bolivia	General Support	toll-free: 800-10-0238

Brazil	Website: www.dell.com/br
International Access Code: 00	Customer Support, Technical Support	0800 90 3355
Country Code: 55	Technical Support Fax	51 481 5470
City Code: 51	Customer Care Fax	51 481 5480
	Sales	0800 90 3390

British Virgin Islands	General Support	toll-free: 1-866-278-6820

Brunei	Customer Technical Support (Penang, Malaysia)	604 633 4966
Country Code: 673	Customer Service (Penang, Malaysia)	604 633 4949
	Transaction Sales (Penang, Malaysia)	604 633 4955

Canada (North York, Ontario)	Online Order Status: www.dell.ca/ostatus
International Access Code: 011	AutoTech (automated technical support)	toll-free: 1-800-247-9362
	Customer Care (Home Sales/Small Business)	toll-free: 1-800-847-4096
	Customer Care (med./large business, government)	toll-free: 1-800-326-9463
	Technical Support (Home Sales/Small Business)	toll-free: 1-800-847-4096
	Technical Support (med./large bus., government)	toll-free: 1-800-387-5757
	Sales (Home Sales/Small Business)	toll-free: 1-800-387-5752
	Sales (med./large bus., government)	toll-free: 1-800-387-5755
	Spare Parts Sales & Extended Service Sales	1 866 440 3355

Cayman Islands	General Support	1-800-805-7541

Appendix

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Image 133

Dell U7021, WHL manual 133

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 108 106109 110 131 130 Finding Information Dell Product Information Guide Setup Diagram Specifications, and white papers Warranty, and repair informationHow to use Windows XP Click the topic that describes your problem 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 Click Reset Hard Drive to Non-RAID Migrating to a RAID 1 VolumeCreating a Spare Hard Drive To Mark a Drive as 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 Adjusting the Picture Adjusting the VolumeCopying CDs and DVDs Go to the previous title or chapter Eject 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 Standby Mode Power ManagementHibernate Mode Overview Power Schemes Tab Power Options Properties Hibernate Tab Advanced Tab Setting Up and Using Your Computer Overclocking Hyper-ThreadingClick Hardware and click Device Manager Optimizing Performance PCI Express Cards Battery Problems Troubleshooting TipsDrive Problems Solving 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 Computer does not start up Lockups and Software ProblemsComputer stops responding Program stops responding Program crashes repeatedly Other software problemsProgram is designed for an earlier Windows operating system Solid blue screen appears 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 Electrical outlet and press the power Diagnostic LightsAdvanced Troubleshooting Has occurred Button Identified a faulty module or Normally, reinstall an additionalIf available, install properly working If the problem persists, contact Dell Your computer see Error exists Requirements exist seeDetermine if a conflict exists by Occurred When to Use the Dell Diagnostics Dell DiagnosticsHard drive, CD drive, and DVD Drive see 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 Using Windows XP Device Driver Rollback Reinstalling DriversUsing the ResourceCD Windows XP 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 Before You Begin Removing and Installing PartsRecommended Tools Turning Off Your Computer Before Working Inside Your Computer Front and Back View of the Computer Open the door to use the front-panel connectorsFront View Press to turn on the computer Front View Doors Open Back View One x16 slot and one x1 slot Opening the Computer Cover System board Power supply Removing and Installing Parts Processor fan Power supply fansInside View of Your Computer Floppy drive CD/DVD drive 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 PCI Express PCI Express CardsCard PCI Express Card slot 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 Power cable Power Cable ConnectorHard Drive Removing a 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 Removing the Processor Airflow Shroud Processor Airflow Shroud102 Shroud release lever Anchor tabs Processor Installing the Processor Airflow ShroudRemoving the Processor 103 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 Replacing the Battery BatteryBattery Battery socket Tab Removing and Installing Parts 113 114 Closing the Computer Cover 115 Specifications Expansion Bus 116Drives 117 ConnectorsCenter/Low Frequency Effects LFE channel two front-panel Controls and Lights 118 PowerLocated in the Product Information 119 System SetupEnvironmental 10 to 35C 50 to 95F System Setup Screens Entering System Setup120 121 System Setup Options 122 123 Option Settings Boot SequenceChanging Boot Sequence for the Current Boot 124 125 Changing Boot Sequence for Future Boots 126 Clearing Forgotten Passwords Cleaning Your Computer Clearing Cmos SettingsComputer, Keyboard, and Monitor Floppy Drive MouseCDs and DVDs 128 Dell Technical Support Policy U.S. Only Definition of Dell-Installed Software and PeripheralsFCC Notices U.S. Only Definition of Third-Party Software and Peripherals 130 Class a Class B FCC Identification Information Contacting Dell131 132 133 134 135 136 137 Ireland Sales 138Sales dial within U.K. only Fax/Sales Fax 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