Lenovo 7348, 6139, 8338, 8820, 7637, 7479, 7626, 7356, 7359, 7629, 7345, 6136, 7187 Updating system programs

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13.Reconnect any cables that were disconnected.

14.Close the computer cover and reconnect the power cords for the computer and monitor to electrical outlets. Refer to “Completing the parts replacement” on page 30.

15.Turn on the computer to restart the operating system.

Chapter 5. Updating system programs 49

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Contents Page Page ThinkCentre User Guide Page Contents Iv User Guide Important safety information Vi User Guide Product overview FeaturesVideo subsystem Power Environment SpecificationsSoftware provided with your Windows operating system Software overviewPC-Doctor for Windows PE Locations Locating connectors on the front of your computerRear connector locations Locating connectors on the rear of your computerConnector Description Component locations Locating componentsShows the location of the parts on the system board Locating parts on the system boardInstalling options and replacing hardware Installing options and replacing hardwareHandling static-sensitive devices Opening the computer cover Installing external optionsOpening the computer cover Installing or replacing a memory moduleWhat to do next Removing the hard disk drive Replacing the hard disk driveReplacing the optical drive Installing the hard disk drive into the bracketRemoving the front bezel Installing the optical drive Replacing the batteryReplacing the heat sink Removing the old batteryRemoving the heat sink Replacing the microprocessor Accessing the microprocessorRemoving the microprocessor Replacing the adapter card Releasing the system board Replacing the internal speaker Replacing the front audio and USB assemblyRemoving the front bezel Removing the front audio and USB assembly Replacing the AC power adapterConnecting the AC power adapter Replacing the mouse Replacing the keyboardMouse connectors Completing the parts replacementCable routing Installing security features Integrated cable lock Password protectionErasing lost or forgotten passwords clearing Cmos Creating and using Product Recovery discs Recovery informationPerforming backup and recovery operations Using the Rescue and Recovery workspace Creating and using rescue media To use rescue media, do one of the following Creating and using a Recovery Repair disketteRecovering or installing device drivers Solving recovery problems Setting a rescue device in the startup sequenceUser Guide Starting the Setup Utility program Using the Setup UtilityViewing and changing settings Using passwordsPower-On Password Password considerationsPrivileged Access Password Hard Disk User PasswordEnabling or disabling a device Selecting a startup deviceSelecting a temporary startup device Advanced settings Exiting from the Setup Utility program Selecting or changing the startup device sequence Using system programs Updating flashing Bios from a discUpdating system programs Recovering from a POST/BIOS update failure Updating flashing Bios from your operating systemUpdating system programs User Guide Basic troubleshooting Troubleshooting and diagnosticsSymptom Action Diagnostic programs Lenovo System ToolboxPC-Doctor for Windows PE Cleaning the mouse PC-Doctor for DOSOptical mouse Non-optical mouse User Guide Information resources Getting information, help, and serviceOnline Books folder ThinkVantage Productivity CenterAccess Help Safety and WarrantyLenovo Welcome Help and service Using the documentation and diagnostic programsCalling for service Purchasing additional services Using other servicesAppendix. Notices Trademarks Television output noticeCRU IndexPage Page User Guide Page Part Number 53Y9936