Dell Dimension 4300 technical specifications Opening the Computer Cover

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7.Pull the arms toward you until they snap into place.

NOTICE: Using excessive force to pull the hinge arms into place may damage the arms or the front panel.

If the hinge arms don't snap back into place on the first attempt, slightly reposition the arms and try again.

8.After the hinge arms clip into place, lower and raise the arms two or three times to properly seat them.

9.Reattach the front-panel insert.

10.Reconnect the power cable to your computer.

11.Reattach the front door as described in "Reattaching the Front Door."

Opening the Computer Cover

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in "Safety Instructions."

1.Shut down the computer.

2.Turn off any attached devices and disconnect them from their electrical outlets.

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

3.Disconnect the computer power cable from the wall outlet, and then press the power button to ground the system board.

4.Lay the computer on its side so that the arrow on the bottom of the computer points up.

NOTICE: Ensure that there is sufficient space to support the open cover—at least 30 cm (1 ft) of desk top space.

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Contents Dell Dimension Hints, Notices, and CautionsAbbreviations and Acronyms Diagnostic Codes Diagnostic Code Definition Corrective ActionSystem Codes and Messages System Messages Post Beep CodesBeep Codes Possible Cause Corrective Action Message Possible Cause Corrective ActionPost Printed Documentation DocumentationOnline Documentation Downloading the Tell Me How Help File and Associated FilesWhen Using Your Computer Safety InstructionsWhen Working Inside Your Computer Adding PartsReattaching the Front Door and Hinge Arms Shutting Down the ComputerReattaching the Hinge Arms Opening the Computer Cover Open the computer cover Adding CardsClose the computer cover Removing CardsAdding Memory Replacing an AGP Card Adding a Second Hard Drive Inch Devices Adding Other DrivesShut down the computer Inch Devices Replacing the Microprocessor Page Installing the Microprocessor Replacing the Power Supply Removing the Power SupplyRemoving the Front I/O Panel Replacing the Power Supply Replacing the System BoardRemoving the System Board Replacing the System Board Closing the Computer CoverPage Solving Problems Accessing Help FilesPower Problems Video and Monitor Problems Start-Up Error MessagesAdjust the Windows display settings If the screen is blankPrinter Problems Sound and Speaker ProblemsIf you cannot print to a parallel port printer If you cannot print to a USB printerModem Problems Scanner ProblemsVerify that the modem is communicating with Windows Control Panel, double-clickPhone and Modem OptionsKeyboard Problems Mouse ProblemsDrive Problems Check the mouse settingsUnder Error-checking, click Check Now If you have a hard drive problemIf you cannot play a DVD movie If the CD-RW drive stops writingNetwork Problems Microsoft Windows Error MessagesGeneral Program Problems Internet Connection Problems Mail ProblemsResolving Other Technical Problems Using the Windows XP Device Driver Rollback Reinstalling DriversAt the Welcome Dell System Owner screen, click Next Click PropertiesResolving Software and Hardware Incompatibilities Click Performance and Maintenance, and then click SystemWindows Me WindowsCreating a Restore Point Using System RestoreClick Performance and Maintenance Click the System Restore tabUndoing the Last System Restore Reinstalling Windows XPClick Create a restore point Restoring the Computer to an Earlier Operating StateClick Next in the Welcome to Windows Me window Reinstalling Windows MeClick I accept the Agreement, and then click Next Reinstalling WindowsBack to Contents Specifications Technical SpecificationsAudio3 PowerVideo Controls and LightsPage Viewing Settings System Setup ProgramSystem Setup Program Screens OverviewOption Function PXE BIS Clearing Forgotten PasswordsTechnical Overview Internal View System Board Connectors and SocketsSocketed Microprocessor Power SupplyPin Number Signal name 18-AWG Wire DC Power ConnectorsDC Power Connector P2 DC Power Connectors P3, P5, P6, P8, and P9DC Power Connector P7 Placement of Dell-Installed Cards IDE Interface Cable Connections for Dell-Installed DrivesPin Number Signal Name 22-AWG Wire IDE Channel IDE Connector Location Dell Installed DriveFront View Controls and LightsWindows Label Back ViewSerial Connector Hints, Notices, and Cautions Abbreviations and Acronyms