Reattaching the Front Door | Dell H7228 specification

12USB 2.0 connectors (6) Use the back USB connectors for devices that typically remain connected, such as printers and keyboards.

		It is recommended that you use the front USB connectors for devices that you connect
		occasionally, such as joysticks or cameras.

13	microphone connector	Use the pink microphone connector to attach a personal computer microphone for
		voice or musical input into a sound or telephony program.

14	center/LFE connector	Use the yellow center/LFE connector (available on computers with integrated sound)
		to attach your subwoofer.
		(On computers with a sound card, use the connector on the card.)

15	keyboard connector	If you have a standard keyboard, plug it into the purple keyboard connector. If you have
		a USB keyboard, plug it into a USB connector.

16	diagnostic lights (4)	Use the lights to help you troubleshoot a computer problem based on the diagnostic
		code. For more information, see page 43.

17	integrated video	If this connector has a protective cap over it, then your computer has the optional
	connector	video card installed. If this connector does not have a protective cap over it, plug the
		cable from your monitor into the blue connector.

18	SPDIF-out connector	Use this connector to provide a digital audio signal to amplifiers, a mini-disc, and other
		SPDIF-in compatible equipment.

Reattaching the Front Door

To prevent damage to your computer, the front door is designed to "break away" if it is opened too far. To reattach the front door:

1Shut down the computer through the Start menu (see page 21).

2Ensure that your computer and attached devices are turned off. If your computer and attached devices did not automatically turn off when you shut down your computer, turn them off now.

NOTICE: To disconnect a network cable, first unplug the cable from your computer and then unplug it from the network wall jack.

3Disconnect any telephone or telecommunication lines from the computer.

4Disconnect your computer and all attached devices from their electrical outlets, and then press the power button to ground the system board.

NOTE: The top hinge arm clicks when it is moved to the closed position—the bottom hinge arm does not.

5Move the hinge arms to the closed position.

Adding Parts

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Dell H7228 manual Reattaching the Front Door

Contents

USB 2.0 connectors Ieee 1394 connector Dell Dimension 4600C Abbreviations and Acronyms Contents Program is designed for an earlier Microsoft Windows Mail, Modem, and Internet Problems Resolving Software and Hardware Incompatibilities Using Microsoft Windows XP System Restore Appendix Safety Instructions Safety Instructions W . d e l l . c o m s u p p o r t . d e l l . c o m How to clean my computer Tips on using WindowsFinding Information for Your Computer Microsoft Windows License Label Downloads Drivers, patches, and software updates Answers to technical serviceHow to use Windows XP Support questions Setting Up and Using Your Computer Connecting the AC Adapter Japan only Tabs Tab holes Setting Up and Using Your Computer Attaching and Removing the Computer StandScrew Setting Up a Printer Parallel connector on computer Connecting a Parallel PrinterPrinter Cable Screws Clips Parallel printer Cable Notches USB connector on computer Connecting a USB Printer Setting Up a Home and Office Network Connecting an Ieee 1394 Device OptionalConnecting to a Network Adapter Ieee 1394 connector Ieee 1394 cable Network cable Network Setup Wizard Setting Up Your Internet Connection Connecting to the Internet Copying CDs and DVDs How to Copy a CD or DVD Using Blank CD-Rs and CD-RWs Hyper-ThreadingHelpful Tips Turning Off Your Computer Booting to a USB Device Setting Up and Using Your Computer Solving Problems Finding Solutions W . d e l l . c o m s u p p o r t . d e l l . c o m See Finding Help Information Battery Problems Drive Problems CD drive problemsProblems writing to a CD-RW drive Mail, Modem, and Internet Problems DVD drive problemsHard drive problems Solving Problems Operating System not Found Contact Dell see Error Messages Computer stops responding General ProblemsProgram stops responding Program crashes repeatedly Solid blue screen appears Other software problems General hardware problems Other technical problems Keyboard Problems Ieee 1394 Device Problems Mouse Problems Network Problems PC Card ProblemsLink activity light Power Problems Printer Problems Scanner Problems No sound from speakers Sound and Speaker Problems Video and Monitor Problems No sound from headphonesIf the screen is blank If the screen is difficult to read Solving Problems Diagnostic Lights Light Pattern Problem Description Suggested ResolutionAdvanced Troubleshooting Modules, reinstall one module Modules installed, removeNormally, reinstall an additional Identified a faulty module or If the problem persists or Remove the card and reinstall itIf the computer has a video card See page 66, and restart Dell Diagnostics Option Function Starting the Dell Diagnostics Drivers What Is a Driver?Identifying Drivers Tab Function Restoring Your Operating System Reinstalling Drivers Restoring the Computer to an Earlier Operating State Using Microsoft Windows XP System Restore Using Dell PC Restore by Symantec Resolving Software and Hardware Incompatibilities Enabling System Restore Front and Back View of the Computer Front ViewAdding Parts Unexpectedly restart More informationInstead, perform an operating system shutdown Back View Network jack Modem jack Reattaching the Front Door Opening the Computer Cover Hinge arms Closed positionFront door Back of computer Adding Parts Cable security tab Looking Inside Your Computer System Board PC Card Types Adding PC Cards Optional Installing a PC Card Removing a PC Card Adding Other Cards Adding or Replacing a Video Card Notch Lever Tab card clip AGP connector PCI connector Removing a Video CardHinged lever Filler bracket Installing a Video Card Adding MemoryDDR Memory Overview Installing Memory Notch Memory module Cutouts Crossbar Securing clips Connector Removing Memory Closing the Computer Cover Microprocessor SpecificationsSystem Information Expansion Bus Memory Ports and ConnectorsDrives Video Audio PowerNetwork Controls and Lights Environmental Is 914 m 3000 ft914 m 3000 ft Standard Settings Clearing Forgotten Passwords Viewing SettingsSystem Setup Screens Replacing the Battery Battery Definition of Dell-Installed Software and Peripherals Dell Technical Support Policy U.S. OnlyDefinition of Third-Party Software and Peripherals Class a Class B FCC Notices U.S. Only FCC Identification Information Contacting Dell Appendix Appendix Appendix Appendix Area Codes Local Numbers, Toll-Free Numbers Appendix Area Codes Local Numbers, Toll-Free Numbers Appendix Appendix Appendix Appendix 800 300 412 or 21 422 07 Appendix Appendix Toll-free Or toll-free Appendix Index 101 Index 102 Index Index Index 103 Index 104