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Lenovo 3261, 3267, 3264, 3263, 3273, 4156, 4004, 3856 manual Installing the heat sink

Models: 4004 3263 3264 4156 3261 3267 3856 3273

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a.You might have to gently twist the heat sink and fan assembly to free it from the microprocessor.

b.Do not touch the thermal grease while handling the heat sink and fan assembly.

7.Position the new heat sink and fan assembly on the system board so that the four screws are aligned with the holes in the system board.

Figure 46. Installing the heat sink

8.Follow this sequence to install the four screws to secure the new heat sink and fan assembly. Do not over-tighten the screws.

a.Partially tighten screw 1 , then fully tighten screw 2 , and then fully tighten screw 1 .

b.Partially tighten screw 3 , then fully tighten screw 4 , and then fully tighten screw 3 .

9.Attach the intrusion switch to the heat sink bracket.

Figure 47. Installing the intrusion switch

Chapter 5. Installing or replacing hardware 57

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Lenovo 3261, 3267, 3264, 3263, 3273, 4156, 4004, 3856 manual Installing the heat sink

Contents

ThinkCentre User Guide Third Edition September Copyright Lenovo Contents Appendix A. Notices 121 Appendix E. Energy Star model information Index Iv ThinkCentre User Guide Static electricity prevention Important safety informationService and upgrades Extension cords and related devices Power cords and power adaptersExternal devices General battery noticePlugs and outlets Heat and product ventilation Rechargeable battery noticeOperating environment Modem safety informationAdditional important information Power supply statementCleaning and maintenance Laser compliance statementCopyright Lenovo Xii ThinkCentre User Guide Product overview FeaturesSecurity features System management featuresInput/Output I/O features Power adapterPreinstalled operating system Preinstalled software programsLenovo programs SpecificationsAccessing Lenovo programs on the Windows 7 operating system Program Icon name Accessing Lenovo programs from Control PanelFingerprint Software Accessing Lenovo programs on the Windows 8 operating systemAn introduction to Lenovo programs Communications UtilityPower Manager Lenovo SettingsLenovo Solution Center Password ManagerView Management Utility System UpdateLocations Front connector, control, and indicator locations Connector Description Locating connectors on the rear of your computerComponent locations Locating componentsSystem board part locations Locating parts on the system boardMachine type and model label Machine type and model labelThinkCentre User Guide Where can I find help about the Windows operating system? Using your computerFrequently asked questions Accessing Control Panel on the Windows 8 operating systemUsing a fingerprint reader Using the keyboardUsing Windows shortcut keys Using the blue ThinkVantage buttonAdding the volume icon to the taskbar Using the wheel mouseAdjusting audio Setting the volume from the desktopHandling and storing CD and DVD media Setting the volume from Control PanelUsing CDs and DVDs Sound section, click Adjust system volumeRecording a CD or DVD Playing a CD or DVDThinkCentre User Guide Comfort Accessibility and comfortYou and your computer Arranging your workspaceElectrical outlets and cable lengths Glare and lightingAir circulation Moving your computer to another country or region Voltage-selection switchRegistering your computer Replacement power cords Security Security featuresAttaching an integrated cable lock Using passwordsBios passwords Protecting data against viruses Windows passwordsConfiguring the fingerprint reader Using and understanding firewallsThinkCentre User Guide Handling static-sensitive devices Installing or replacing hardwareInstalling or replacing hardware Installing external optionsInstalling the vertical stand Installing or removing the vertical standRemoving the computer from the vertical stand Installing or removing the Vesa mount bracketInstalling the Vesa mount bracket What to do next Removing the computer coverRemoving the computer cover screw Removing the computer cover Installing or replacing a memory moduleRemoving the memory module Removing the optical drive box Replacing the optical driveRemoving the optical drive from the optical drive box Installing the optical drive metal plate Installing the screw that secures the optical drive Installing the optical drive box Replacing the secondary hard disk drive Installing the screw that secures the optical drive boxRemoving the optical drive box Removing the secondary hard disk drive from the adapter Installing a new hard disk drive into the adapter Installing the adapter bracket into the optical drive box Installing the optical drive box What to do next Replacing the batteryRemoving the old battery Replacing the ac power adapterDisconnecting the ac power adapter Connecting the new ac power adapter Replacing the ac power adapter bracketRemoving the ac power adapter bracket Removing the screw that secures the power switch board Replacing the power switch boardRemove the power switch board from the computer Replacing the heat sink Installing the screw that secures the power switch boardLift the failing heat sink off the system board Installing the heat sink Replacing the microprocessor Accessing the microprocessorRemoving the microprocessor Replacing the hard disk drive bracket Installing the microprocessorRemoving the screws that secure the hard disk drive bracket Removing the hard disk drive bracket Installing the hard disk drive bracket Removing the WiFi card module cable and screws Replacing the WiFi card moduleRemoving the WiFi card module Installing the rear WiFi antenna Installing or removing the rear WiFi antennaInstalling the rear WiFi antennas Installing or removing two rear WiFi antennasRemoving the rear WiFi antenna Installing the rear WiFi antennas Removing the rear WiFi antennasReplacing the system fan Removing the rear WiFi antennasLift the failing system fan off the system board Install the four screws that secure the system fan What to do next Replacing the internal speakerRemoving the internal speaker Replacing the keyboard or mouse Installing a new internal speakerConnecting the USB keyboard or mouse Completing the parts replacementInstalling the computer cover Obtaining device drivers Installing the computer cover screwThinkCentre User Guide Creating and using recovery media Recovery informationRecovery information for the Windows 7 operating system Performing a backup operation Performing backup and recovery operationsCreating recovery media Using recovery mediaClick the Restore your system from a backup icon Using the Rescue and Recovery workspacePerforming a recovery operation Creating a rescue medium Creating and using a rescue mediumUsing a rescue medium Reinstalling preinstalled device drivers Reinstalling preinstalled applications and device driversReinstalling preinstalled applications Solving recovery problems Reinstalling software programsReinstalling device drivers Refreshing your computer Recovery information for the Windows 8 operating systemThinkCentre User Guide Viewing and changing settings Using the Setup Utility programStarting the Setup Utility program Hard Disk Password Password considerationsPower-On Password Administrator PasswordEnabling or disabling a device Erasing lost or forgotten passwords clearing CmosSelecting or changing the startup device sequence Enabling ErP compliance modeSelecting a startup device Selecting a temporary startup deviceExiting the Setup Utility program ThinkCentre User Guide Updating system programs Using system programsUpdating flashing the Bios from a disc Click Download Drivers & Software Click Use Quick Path Updating flashing the Bios from your operating systemRecovering from a POST/BIOS update failure Updating your operating system Preventing problemsKeeping your computer current Getting the latest device drivers for your computerBasics Using System UpdateOptical mouse Cleaning your computerComputer KeyboardMoving your computer Good maintenance practicesCleaning a glass-screen surface Basic troubleshooting Troubleshooting and diagnosticsTroubleshooting Troubleshooting procedureNo audio in Windows Audio problemsNo audio in DOS applications or games CD problemsSound comes from one external speaker only Black screen instead of DVD video DVD problemsCD or DVD does not work Invalid disc or no disc found message DVD movie will not playNo audio or intermittent audio while playing DVD movie Playback is very slow or choppyAll or some keys on the keyboard do not work Intermittent problemsKeyboard, mouse, or pointing device problems Fingerprint reader does not work Wireless keyboard does not workMouse or pointing device does not work Pointer on the screen does not move smoothly with the mouseImage appears to be flickering Monitor problemsWrong characters appear on the screen Image is discolored Networking problemsAdapter stops working for no apparent reason Ethernet problemsYour computer cannot connect to the network Click Start Control Panel Click Hardware and SoundWake on LAN feature is not working Wireless LAN problemWireless WAN problem An option that previously worked does not work now Option problemsBluetooth problem An option that was just installed does not workInsufficient free hard disk drive space Performance and lockup problemsClick Disk Cleanup Click Programs Click Turn Windows features on or offInsufficient memory Printer problemsExcessive number of fragmented files Software does not work as expected Serial port problemsSoftware problems USB problems Lenovo Solution Center Getting information, help, and service Lenovo Support Web site Help and serviceUsing the documentation and diagnostic program Calling for servicePurchasing additional services Using other servicesThinkCentre User Guide 121 Appendix A. NoticesTrademarks Federal Communications Commission Declaration of Conformity Appendix B. Regulatory informationExport classification notice Electronic emissions noticesThinkCentre User Guide Additional regulatory information ThinkCentre User Guide 127 Appendix C. Weee and recycling informationImportant Weee information Recycling informationRecycling information for Brazil Battery recycling information for TaiwanBattery recycling information for the European Union ThinkCentre User Guide 131 China RoHS Turkish RoHSUkraine RoHS India RoHS 133 Appendix E. Energy Star model informationThinkCentre User Guide 135 IndexPower-On Password 137 ThinkCentre User Guide