Manuals / Lenovo / Computer Equipment / Personal Computer

Lenovo 2756, 2988, 2992E5U, 2982, 2993, 2996, 3393, 3395, 3306, 3224 Removing the cover presence switch

Models: 2756 2800 2934 2945 2941 2932 2929 2961 3183 3218 3181 3227 3198 3209 3207 3185 3214 3187 3202 3224 3306 3395 3393 2996 2993 2982 2992E5U 2988

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6.Remove the screw that secures the cover presence switch and remove the cover presence switch from the chassis.

Figure 57. Removing the cover presence switch

7.Position the new cover presence switch so that the screw hole in the cover presence switch is aligned with the corresponding hole in the chassis.

Chapter 5. Installing or replacing hardware 71

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Lenovo 2756, 2988, 2992E5U, 2982, 2993, 2996, 3393, 3395, 3306, 3224, 3202, 3187, 3214, 3185, 3207 Removing the cover presence switch

Contents

ThinkCentre User Guide Second Edition September Copyright Lenovo Chapter 5. Installing or replacing ContentsImportant safety information Chapter 2. Using your computerChapter 6. Recovery information Appendix A. Notices iv ThinkCentre User Guide Hazardous moving parts. Keep fingers and other body parts away Important safety informationService and upgrades Static electricity preventionExtension cords and related devices Power cords and power adaptersHeat and product ventilation Plugs and outletsExternal devices Operating environment Modem safety informationDANGER Power supply statementCleaning and maintenance Laser compliance statementx ThinkCentre User Guide Memory FeaturesChapter 1. Product overview MicroprocessorConnectivity System management featuresPreinstalled software programs Input/Output I/O featuresPower supply Security featuresEnvironment SpecificationsDimensions WeightAccessing Lenovo programs from Control Panel Accessing Lenovo programs on the Windows 7 operating systemLenovo programs Accessing Lenovo programs from the Lenovo ThinkVantage Tools programCommunications Utility Accessing Lenovo programs on the Windows 8 operating systemAn introduction to Lenovo programs Recovery Media Lenovo Solution CenterPassword Manager Power ManagerSimpleTap LocationsRescue and Recovery System UpdateUSB 2.0 connector USB port Microphone connector Headphone connector Figure 1. Front connector, control, and indicator locationsOptical drive eject/close button Power switch Hard disk drive activity indicator Power indicatorVGA monitor connector Locating connectors on the rear of your computerFigure 2. Rear connector locations Power cord connectorDescription ConnectorLocating parts on the system board Locating componentsFigure 4. System board part locations 1 4-pin microprocessor power connector 2 Microprocessor14 ThinkCentre User Guide Figure 5. System board part locationsLocating internal drives Figure 7. Machine type and model label Machine type and model labelThe following is a sample of the machine type and model label Where are my recovery discs? Chapter 2. 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 buttonAbout your computer audio Using the wheel mouseAdjusting audio Setting the volume from the desktop2. In the Sound topic, click Adjust system volume Setting the volume from Control PanelUsing CDs and DVDs Handling and storing CD and DVD mediaRecording a CD or DVD Playing a CD or DVD22 ThinkCentre User Guide Comfort Accessibility and comfortChapter 3. You 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 For power cord information and part numbers, go to Replacement power cordsChapter 4. Security Security featuresFigure 8. Integrated cable lock Using passwordsBIOS passwords Attaching an integrated cable lockProtecting data against viruses Windows passwordsConfiguring the fingerprint reader Using and understanding firewalls30 ThinkCentre User Guide Handling static-sensitive devices Chapter 5. Installing or replacing hardwareInstalling or replacing hardware Installing external optionsOpening the computer cover Removing and reinstalling the front bezelFigure 10. Removing the front bezel 2. Open the computer cover. See “Opening the computer cover” on pageWhat to do next Accessing the system board components and drivesInstalling or replacing a memory module 36 ThinkCentre User Guide Figure 12. Removing a memory moduleFigure 13. Opening the retaining clips What to do next Installing or replacing a PCI cardFigure 14. Installing a memory module as shown to What to do next Installing or replacing the card readerInstalling the card reader 40 ThinkCentre User Guide Figure 17. Installing the card readerFigure 19. Removing the card reader cover Figure 18. Installing the screw that secures the card readerWhat to do next Figure 20. Removing the screw that secures the card reader Replacing the card readerFigure 21. Installing the card reader What to do next Installing or replacing the mSATA solid state driveInstalling the mSATA solid state drive Figure 23. Installing the mSATA solid state drive into the storage converter 46 ThinkCentre User Guide Figure 25. Installing the mSATA solid state drive storage converterWhat to do next Replacing the mSATA solid state drive48 ThinkCentre User Guide Figure 27. Removing the mSATA solid state drive storage converterFigure 29. Removing the mSATA solid state drive 50 ThinkCentre User Guide Figure 32. Installing the mSATA solid state drive storage converterWhat to do next Replacing the batteryFigure 33. Installing the screw that secures the storage converter What to do next Installing the solid state diskFigure 34. Removing the old battery Figure 35. Installing a new batteryTo install the solid state disk, do the following Figure 38. Removing the hard disk drive Replacing the hard disk driveWhat to do next 2 , pin What to do next Replacing the optical driveFigure 40. Installing the hard disk drive Figure 41. Pivoting the optical drive bay Figure 42. Removing the old optical drive and slide the optical drive out of the rear of the drive bay assemblyFigure 43. Installing the optical drive retainer 7. Press the optical drive lockWhat to do next Replacing the heat sink and fan assemblyFigure 44. Installing a new optical drive a. Partially remove screw b. Partially remove screw a. Partially tighten screw b. Partially tighten screw What to do next Replacing the power supply assemblyFigure 47. Installing the heat sink fan duct Hazardous moving parts. Keep fingers and other body parts away 64 ThinkCentre User Guide Figure 48. Removing the heat sink fan ductFigure 49. Power connectors on the system board Note Use only screws provided by Lenovo What to do next Replacing the microprocessorFigure 52. Installing the heat sink fan duct 5. Lift the small handle Figure 55. Installing the microprocessor 70 ThinkCentre User Guide Replacing the cover presence switchWhat to do next Figure 57. Removing the cover presence switch What to do next Replacing the internal speakerFigure 58. Installing the new cover presence switch Figure 59. Removing the internal speaker What to do next Replacing the front audio and USB assemblyFigure 60. Installing the new internal speaker What to do next Figure 61. Removing the front audio and USB assemblyRemoving the WiFi adapter card Replacing the WiFi unitsRemoving the WiFi card module Installing the WiFi units Figure 68. Connecting the WiFi antenna cables Figure 67. Installing the WiFi card moduleWhat to do next Installing or removing the rear WiFi antennaInstalling the rear WiFi antenna What to do next Removing the rear WiFi antennaFigure 70. Installing the rear WiFi antenna What to do next Installing or removing the front WiFi antennaInstalling the front WiFi antenna Figure 72. Peeling off the paper that protects the sticker Figure 73. Installing the front WiFi antennaWhat to do next Removing the front WiFi antennaFigure 74. Removing the front WiFi antenna What to do nextWhat to do next Completing the parts replacementReplacing the keyboard or mouse Figure 75. Connecting a new keyboard or mouse86 ThinkCentre User Guide Obtaining device driversCreating and using recovery media Chapter 6. Recovery informationRecovery information for the Windows 7 operating system Performing a backup operation Performing backup and recovery operationsCreating recovery media Using recovery media3. Click 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 92 ThinkCentre User Guide Reinstalling software programsReinstalling device drivers Solving recovery problemsAdvanced startup options Recovery information for the Windows 8 operating systemResetting your computer to the factory default settings Refreshing your computer94 ThinkCentre User Guide Using passwords Chapter 7. Using the Setup Utility programStarting the Setup Utility program Viewing and changing settingsHard Disk Password Password considerationsPower-On Password Administrator PasswordSATA Controller Erasing lost or forgotten passwords clearing CMOSEnabling or disabling a device USB SetupEnabling ErP compliance mode Selecting a startup deviceSelecting a temporary startup device Selecting or changing the startup device sequenceDisabled ICE performance modeICE thermal alert Better Acoustic Performance default setting100 ThinkCentre User Guide Exiting the Setup Utility programChapter 8. Updating system programs Using system programsUpdating flashing the BIOS from a disc 2. Click Download Drivers & Software 3. Click Use Quick Path Updating flashing the BIOS from your operating systemRecovering from a POST/BIOS update failure Updating your operating system Chapter 9. Preventing problemsKeeping your computer current Getting the latest device drivers for your computer“Basics” on page “Cleaning your computer” on page “Computer” on page Using System UpdateBasics Cleaning and maintenanceOptical mouse Cleaning your computerComputer KeyboardCleaning a glass-screen surface Good maintenance practicesMoving your computer Basic troubleshooting Chapter 10. 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 problemsA CD 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 choppy1. Click Start Control Panel 2. Click Hardware and Sound Intermittent problemsKeyboard, mouse, or pointing device problems All or some keys on the keyboard do not workThe fingerprint reader does not work The wireless keyboard does not workThe mouse or pointing device does not work The pointer on the screen does not move smoothly with the mouseThe image appears to be flickering Monitor problemsWrong characters appear on the screen The image is discolored Networking problems2. Click Hardware and Sound Ethernet problemsYour computer cannot connect to the network 1. Click Start Control Panel 2. Click Hardware and SoundThe Wake on LAN feature is not working A wireless LAN problemA wireless WAN problem Sound does not come from the Bluetooth headphone Option problemsBluetooth problems An option that was just installed does not work1. Click Start Computer Performance and lockup problemsAn option that previously worked does not work now Insufficient free hard disk drive space3. Click Disk Cleanup 4. Click Clean up system files Excessive number of fragmented files3. Click Disk Cleanup 2. Click Programs 3. Click Turn Windows features on or off5. Click Optimize Printer problemsSerial port problems Insufficient memorySoftware does not work as expected Software problemsWhen using a sort feature, dates do not sort in the correct order 124 ThinkCentre User Guide USB problemsLenovo Solution Center Lenovo ThinkVantage Tools Chapter 11. Getting information, help, and serviceSafety and Warranty Information resourcesLenovo Support Web site Help and serviceUsing the documentation and diagnostic program Calling for servicePurchasing additional services Using other services128 ThinkCentre User Guide Morrisville, NC U.S.A Attention Lenovo Director of Licensing Appendix A. NoticesLenovo United States, Inc 1009 Think Place - Building One Trademarks Federal Communications Commission Declaration of Conformity Appendix B. Regulatory informationExport classification notice Electronic emissions noticesDeutschland German Class B compliance statement Deutschsprachiger EU HinweisKeyboard and mouse compliance statement for Taiwan Additional regulatory informationLenovo product service information for Taiwan Japanese VCCI Class B statement134 ThinkCentre User Guide Recycling information Appendix C. WEEE and recycling informationImportant WEEE information Descarte de um Produto Lenovo Fora de Uso Battery recycling information for TaiwanRecycling information for Brazil Declarações de Reciclagem no BrasilAppendix C. WEEE and recycling information Battery recycling information for the European Union138 ThinkCentre User Guide Ukraine RoHS Appendix D. Restriction of Hazardous Substances Directive RoHSChina RoHS Turkish RoHS RoHS compliant as per E-Waste Management & Handling Rules India RoHSAppendix E. ENERGY STAR model information 142 ThinkCentre User Guide Index Page flashing the BIOS 146 ThinkCentre User Guide