Lenovo 7548, 104, 7539, 154 manual First Edition November Copyright Lenovo

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Note: Before using this information and the product it supports, be sure to read and understand the ThinkCentre Safety and Warranty Guide and Appendix A “Notices” on page 71.

First Edition (November 2010)

© Copyright Lenovo 2010.

LENOVO products, data, computer software, and services have been developed exclusively at private expense and are sold to governmental entities as commercial items as defined by 48 C.F.R. 2.101with limited and restricted rights to use, reproduction and disclosure.

LIMITED AND RESTRICTED RIGHTS NOTICE: If products, data, computer software, or services are delivered pursuant a General Services Administration “GSA” contract, use, reproduction, or disclosure is subject to restrictions set forth in Contract No. GS-35F-05925.

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Contents

ThinkCentre User Guide Page ThinkCentre User Guide First Edition November Copyright Lenovo Contents Appendix A. Notices Important safety information Vi ThinkCentre User Guide Features Product overviewConnectivity Specifications Security featuresSoftware overview Software provided with your Windows operating systemLenovo ThinkVantage Tools Locations Lenovo ThinkVantage ToolboxLocating connectors and parts on the rear of your computer Rear connector and part locationsConnector Description Locating componentsLocating parts on the system board Component locationsLocating internal drives System board part locationsDrive bay locations ThinkCentre User Guide Installing or replacing hardware Installing or replacing hardwareInstalling external options Handling static-sensitive devicesRemoving the computer cover Removing the computer coverRemoving and reinstalling the front bezel Removing the front bezelAccessing the system board components and drives Reinstalling the front bezelInstalling or replacing a PCI card Pivoting the drive bay assembly upwardThinkCentre User Guide Removing the PCI card Installing or replacing a memory module What to do nextRemoving the memory module Replacing the battery Installing the memory moduleReplacing the heat sink and fan assembly Removing the old batteryRemoving the heat sink fan duct Screws that secure the heat sink and fan assembly Installing the heat sink fan duct Replacing the microprocessorAccessing the microprocessor Replacing the power supply assembly Removing the microprocessorInstalling or replacing hardware 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 Installing the optical drive Replacing the hard disk drivePivoting the drive bay assembly Removing the hard disk drive Installing the hard disk drive Replacing the card readerReplacing the front fan assembly Removing the card readerRemoving the front fan assembly Installing the front fan assembly Replacing the keyboardKeyboard connectors Replacing the mouseCompleting the parts replacement Mouse connectorsObtaining device drivers Basic security features Reinstalling the computer coverInstalling an integrated cable lock Integrated cable lockErasing a lost or forgotten password clearing Cmos Password protectionPadlock Installing or replacing hardware ThinkCentre User Guide Creating and using recovery media Recovery informationCreating recovery media Performing backup and recovery operations Using recovery mediaPerforming a backup operation Performing a recovery operation Using the Rescue and Recovery workspaceUsing a rescue medium Creating and using a rescue mediumCreating a rescue medium Installing or reinstalling device drivers Solving recovery problemsThinkCentre User Guide Using the Setup Utility program Starting the Setup Utility programViewing or changing settings Using passwordsPassword considerations Power-on passwordAdministrator password Setting, changing, or deleting a 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 Updating flashing the Bios from your operating system Recovering from a Post and Bios update failureUpdating system programs ThinkCentre User Guide Troubleshooting and diagnostic programs Basic troubleshootingLenovo ThinkVantage Toolbox Diagnostic programsPC-Doctor for DOS Cleaning an optical mouse Running the diagnostic program from the diagnostic discThinkCentre User Guide Getting information, help, and service Information resourcesOnline Books folder Lenovo ThinkVantage ToolsAccess Help Safety and warrantyHelp and service Lenovo WelcomeUsing the documentation and diagnostic programs Calling for serviceUsing other services Purchasing additional servicesAppendix A. Notices Television output notice European conformance CE mark TrademarksIndex CRUKeyboard replacing Lenovo Customer Support Center Solving recovery problems Starting the Setup Utility program ThinkCentre User Guide Page 0A22638