Lenovo 804 manual Removing and reinstalling the front bezel, Removing the front bezel

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Removing and reinstalling the front bezel

Attention: Do not open your computer or attempt any repair before reading and understanding the “Important safety information” in the ThinkCentre Safety and Warranty Guide that came with your computer. To obtain a copy of the ThinkCentre Safety and Warranty Guide, go to:

http://support.lenovo.com

This section provides instructions on how to remove and reinstall the front bezel.

To remove and reinstall the front bezel, do the following:

1.Remove all media from the drives and turn off all attached devices and the computer. Then, disconnect all power cords from electrical outlets and disconnect all cables that are connected to the computer.

2.Remove the computer cover. See “Removing the computer cover” on page 12.

3.Remove the front bezel by releasing the three plastic tabs on the top of the front bezel and pivoting the front bezel outward to remove it from the computer. Carefully lay the front bezel aside without disconnecting the power switch and light-emitting diode (LED) assembly cable.

Figure 7. Removing the front bezel

Chapter 2. Installing or replacing hardware 13

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Contents ThinkCentre User Guide Second Edition September Copyright Lenovo 2010 Contents Index Important safety information Iv ThinkCentre User Guide Product overview FeaturesConnectivity System management featuresInput/Output I/O features Security featuresPreinstalled software programs SpecificationsPreinstalled operating system ThinkVantage Productivity Center Software overviewSoftware provided with your Windows operating system Lenovo ThinkVantage ToolsThinkVantage Client Security Solution Product RecoveryThinkVantage Rescue and Recovery Password ManagerAdobe Reader LocationsConnector Locating connectors and parts on the rear of your computerLocating parts on the system board Locating componentsSystem board part locations Locating internal drivesDrive bay locations Handling static-sensitive devices Installing or replacing hardwareInstalling or replacing hardware Installing external optionsRemoving the computer cover Removing the computer coverRemoving the front bezel Removing and reinstalling the front bezelReinstalling the front bezel Accessing the system board components and drivesPivoting the drive bay assembly upward Installing or replacing a PCI cardThinkCentre User Guide Removing the PCI card What to do next Installing or replacing a memory moduleRemoving the memory module Installing the memory module Replacing the batteryRemoving the old battery Replacing the heat sink and fan assemblyRemoving the heat sink fan duct Screws that secure the heat sink and fan assembly Replacing the microprocessor Installing the heat sink fan ductAccessing the microprocessor Removing the microprocessor Replacing the power supply assembly Removing the heat sink fan duct Removing the power supply assembly Installing the power supply assembly Replacing the optical drive Removing the optical drive screws Slide the optical drive out of the front of the computer Replacing the hard disk drive Installing the optical drivePivoting the drive bay assembly Removing the hard disk drive Installing the hard disk drive Replacing the front fan assemblyRemoving the front fan assembly Replacing the USB keyboard or mouse Installing the front fan assemblyConnecting the USB keyboard or mouse Completing the parts replacementObtaining device drivers Basic security featuresIntegrated cable lock Installing an integrated cable lockErasing a lost or forgotten password clearing Cmos Password protectionPadlock ThinkCentre User Guide Creating and using recovery media Recovery informationCreating recovery media Performing backup and recovery operations Using recovery mediaOn the Rescue and Recovery menu, click Restore your system Performing a recovery operation Performing a backup operationClick the Restore your system from a backup icon Creating and using a rescue medium Using the Rescue and Recovery workspaceCreating a rescue medium Using a rescue mediumSolving recovery problems Installing or reinstalling device driversUsing passwords Using the Setup Utility programStarting the Setup Utility program Viewing or changing settingsSetting, changing, or deleting a password Password considerationsPower-on password Administrator passwordSelecting a temporary startup device Selecting a startup deviceViewing or changing the startup device sequence Exiting the Setup Utility program Updating flashing the Bios from a disc Using system programsUpdating system programs Recovering from a Post and Bios update failure Updating flashing the Bios from your operating systemClick Downloads and drivers Updating system programs ThinkCentre User Guide Basic troubleshooting Troubleshooting and diagnostic programsPC-Doctor for Rescue and Recovery Diagnostic programsLenovo ThinkVantage Toolbox PC-Doctor for DOS Cleaning an optical mouseThinkCentre User Guide Lenovo ThinkVantage Tools Getting information, help, and serviceInformation resources Online Books folderLenovo Welcome Access HelpSafety and warranty ThinkVantage Productivity CenterUsing the documentation and diagnostic programs Help and serviceLenovo Support Web site Using other services Calling for servicePurchasing additional services ThinkCentre User Guide Appendix A. Notices European conformance CE mark Trademarks Television output noticeAppendix A. Notices ThinkCentre User Guide CRU IndexKeyboard, replacing Lenovo Customer Support Center Set Power-On Password ThinkCentre User Guide Page 71Y8530