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Lenovo 3484JMU manual Locking the computer cover, Installing a padlock

Models: 3484JMU

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Locking the computer cover

Locking the computer cover helps prevent unauthorized people from gaining access to the inside of your computer. Your computer comes with a padlock loop so that the computer cover cannot be removed when a padlock is installed.

Figure 7. Installing a padlock

28ThinkCentre User Guide

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Image 40

Lenovo 3484JMU manual Locking the computer cover, Installing a padlock

Contents

ThinkCentre User Guide Machine Types 3484, 3485, andThird Edition September Copyright Lenovo Contents Important safety informationChapter 2. Using your computer Chapter 5. Installing or replacingChapter 6. Recovery information Chapter 7. Using the Setup UtilityChapter 9. Preventing problems Chapter 10. Troubleshooting andAppendix D. Restriction of Hazardous Substances Directive RoHS Appendix C. WEEE and recycling informationIndex iv ThinkCentre User Guide Important safety information Service and upgradesStatic electricity prevention Hazardous moving parts. Keep fingers and other body parts awayPower cords and power adapters Extension cords and related devicesExternal devices Plugs and outletsHeat and product ventilation Modem safety information Operating environmentPower supply statement Cleaning and maintenanceLaser compliance statement DANGERx ThinkCentre User Guide Features Chapter 1. Product overviewMicroprocessor MemorySystem management features ConnectivityInput/Output I/O features Power supplySecurity features Preinstalled software programsMicrosoft Windows 7 operating system Microsoft Windows 8 operating systemLinux Microsoft Windows XP Professional SP 4 ThinkCentre User GuideAccessing Lenovo programs on the Windows 7 operating system SpecificationsLenovo programs Accessing Lenovo programs from the Lenovo ThinkVantage Tools program Accessing Lenovo programs from Control PanelTable 1. Programs in the Lenovo ThinkVantage Tools program Table 2. Programs in Control PanelAccessing Lenovo programs on the Windows 8 operating system An introduction to Lenovo programsCommunications Utility Fingerprint SoftwareLenovo Settings Lenovo Solution CenterPassword Manager Power ManagerLocations System UpdateView Management Utility Figure 1. Front connector, control, and indicator locations Hard disk drive activity indicator Power indicator Power switchUSB connector USB port Headphone connector Microphone connector USB connector USB portLocating connectors on the rear of your computer Figure 2. Rear connector locationsConnector DescriptionLocating components ConnectorDescription Figure 3. Component locationsLocating parts on the system board Figure 4. System board part locationsLocating internal drives Figure 5. Drive bay locationsThe following is a sample of the machine type and model label Machine type and model labelFigure 6. Machine type and model label 16 ThinkCentre User Guide Chapter 2. Using your computer Frequently asked questionsAccessing Control Panel on the Windows 8 operating system Where are my recovery discs?Using the keyboard Using Windows shortcut keysUsing the blue ThinkVantage button Using a fingerprint readerUsing the wheel mouse Adjusting audioSetting the volume from the desktop Adding the volume icon to the taskbarSetting the volume from Control Panel Using CDs and DVDs2. In the Sound section, click Adjust system volume Handling and storing CD and DVD mediaPlaying a CD or DVD Recording a CD or DVD22 ThinkCentre User Guide Accessibility and comfort Chapter 3. You and your computerArranging your workspace ComfortAir circulation Glare and lightingElectrical outlets and cable lengths Registering your computer Voltage-selection switchMoving your computer to another country or region Replacement power cords For power cord information and part numbers, go toSecurity features Chapter 4. SecurityLocking the computer cover Figure 7. Installing a padlockUsing passwords BIOS passwordsAttaching an integrated cable lock Figure 8. Integrated cable lockWindows passwords Configuring the fingerprint readerUsing and understanding firewalls Protecting data against virusesChapter 4. Security 32 ThinkCentre User Guide Chapter 5. Installing or replacing hardware Installing or replacing hardwareInstalling external options Handling static-sensitive devicesRemoving the computer cover Removing and reinstalling the front bezel Installing or replacing a PCI card What to do nextFigure 12. Removing the screw that secures the PCI card latch as shown to Figure 14. Installing a PCI card Installing or replacing a memory moduleWhat to do next Figure 16. Opening the retaining clips Figure 15. Removing a memory module40 ThinkCentre User Guide Figure 17. Installing a memory module Replacing the batteryWhat to do next Replacing the primary hard disk drive Figure 18. Removing the old batteryFigure 19. Installing a new battery What to do nextFigure 20. Removing the primary hard disk drive Replacing the optical drive Figure 21. Installing the hard disk driveFigure 22. Connecting a SATA hard disk drive What to do nextFigure 23. Removing the optical drive Figure 24. Installing the optical drive Figure 25. Connecting the optical driveWhat to do next 46 ThinkCentre User GuideReplacing the power supply assembly Hazardous moving parts. Keep fingers and other body parts awayFigure 26. Removing the screws for the power supply assembly Replacing the heat sink and fan assemblyWhat to do next Figure 27. Removing the heat sink and fan assembly What to do next Replacing the microprocessor50 ThinkCentre User Guide to access the microprocessor Figure 28. Accessing the microprocessor5. Lift the small handle and open the retainer13. Reconnect all cables that were disconnected from the system board Figure 31. Removing the front audio and USB assembly Replacing the front audio and USB assemblyWhat to do next Removing the WiFi adapter card Replacing the WiFi unitsWhat to do next Removing the WiFi card module Installing the WiFi units Figure 36. Installing the WiFi card module Figure 37. Installing the WiFi antenna cables Figure 38. Installing the WiFi adapter cardWhat to do next 58 ThinkCentre User GuideInstalling or removing the rear WiFi antenna Installing the rear WiFi antennaRemoving the rear WiFi antenna What to do nextInstalling the front WiFi antenna Installing or removing the front WiFi antennaWhat to do next What to do next Figure 42. Installing the front WiFi antennaFigure 41. Peeling off the paper that protects the stickers Replacing the keyboard or mouse Removing the front WiFi antennaWhat to do next Figure 44. Connecting the USB keyboard or mouse Completing the parts replacementWhat to do next Obtaining device drivers Figure 45. Reinstalling the computer coverRecovery information for the Windows 7 operating system Chapter 6. Recovery informationCreating and using recovery media Performing backup and recovery operations Creating recovery mediaUsing recovery media Performing a backup operationPerforming a recovery operation Using the Rescue and Recovery workspace3. Click the Restore your system from a backup icon Using a rescue medium Creating and using a rescue mediumCreating a rescue medium Reinstalling preinstalled applications Reinstalling preinstalled applications and device driversReinstalling preinstalled device drivers Reinstalling software programs Reinstalling device driversSolving recovery problems 70 ThinkCentre User GuideRecovery information for the Windows 8 operating system Resetting your computer to the factory default settingsRefreshing your computer Advanced startup options72 ThinkCentre User Guide Chapter 7. Using the Setup Utility program Starting the Setup Utility programViewing and changing settings Using passwordsPassword considerations Power-On PasswordAdministrator Password Hard Disk PasswordErasing lost or forgotten passwords clearing CMOS Enabling or disabling a deviceUSB Setup SATA ControllerEnabling ErP compliance mode Selecting a startup deviceSelecting a temporary startup device Selecting or changing the startup device sequenceExiting the Setup Utility program 78 ThinkCentre User Guide Updating flashing the BIOS from a disc Using system programsChapter 8. Updating system programs Recovering from a POST/BIOS update failure Updating flashing the BIOS from your operating system2. Click Download Drivers & Software 3. Click Use Quick Path Chapter 9. Preventing problems Keeping your computer currentGetting the latest device drivers for your computer Updating your operating systemUsing System Update BasicsCleaning and maintenance “Basics” on page “Cleaning your computer” on page “Computer” on pageCleaning your computer Cleaning a flat-panel monitor surfaceComputer KeyboardCleaning a glass-screen surface Good maintenance practicesMoving your computer 5. Disconnect communication cables, such as modem or network cables, from the outlets first, and then disconnect the other ends from the computer 86 ThinkCentre User Guide Chapter 10. Troubleshooting and diagnostics Basic troubleshootingTroubleshooting procedure TroubleshootingAudio problems No audio in WindowsSound comes from one external speaker only CD problemsNo audio in DOS applications or games A CD or DVD does not work DVD problemsBlack screen instead of DVD video DVD movie will not play No audio or intermittent audio while playing DVD moviePlayback is very slow or choppy Invalid disc or no disc found messageIntermittent problems Keyboard, mouse, or pointing device problemsAll or some keys on the keyboard do not work 1. Click Start Control Panel 2. Click Hardware and SoundThe wireless keyboard does not work The mouse or pointing device does not workThe pointer on the screen does not move smoothly with the mouse The fingerprint reader does not workMonitor problems Wrong characters appear on the screenThe image is discolored The image appears to be flickering96 ThinkCentre User Guide Networking problems Ethernet problemsYour computer cannot connect to the network 2. Click Hardware and SoundThe Wake on LAN feature is not working A wireless LAN problemThe adapter stops working for no apparent reason Option problems A wireless WAN problemBluetooth problem An option that was just installed does not workPerformance and lockup problems 3. Click Disk CleanupAn option that previously worked does not work now Insufficient free hard disk drive space2. Click Programs 3. Click Turn Windows features on or off 3. Click Disk Cleanup 4. Click Clean up system files6. In the Programs and Features area, click the Clean up button Excessive number of fragmented filesSerial port problems Printer problems102 ThinkCentre User Guide When using a sort feature, dates do not sort in the correct order Software problemsSoftware does not work as expected USB problems Diagnostic programsLenovo Solution Center 104 ThinkCentre User GuideCreating a diagnostic disc Running the diagnostic program from a diagnostic discLenovo ThinkVantage Toolbox PC-Doctor for DOSNote For additional help, press the F1 key 106 ThinkCentre User GuideChapter 11. Getting information, help, and service Safety and WarrantyInformation resources Lenovo ThinkVantage ToolsHelp and service Using the documentation and diagnostic programsCalling for service Lenovo Support Web siteUsing other services Purchasing additional services110 ThinkCentre User Guide Lenovo United States, Inc 1009 Think Place - Building One Appendix A. NoticesMorrisville, NC U.S.A Attention Lenovo Director of Licensing Trademarks Appendix B. Regulatory information Export classification noticeTelevision output notice Electronic emissions noticesGerman Class B compliance statement Deutschsprachiger EU Hinweis Industry Canada Class B emission compliance statementDeutschland Lenovo product service information for Taiwan Additional regulatory informationKorea Class B compliance statement Japanese VCCI Class B statement Keyboard and mouse compliance statement for Taiwan116 ThinkCentre User Guide Important WEEE information Appendix C. WEEE and recycling informationRecycling information Battery recycling information for Taiwan Recycling information for BrazilDeclarações de Reciclagem no Brasil Descarte de um Produto Lenovo Fora de UsoBattery recycling information for the European Union Appendix C. WEEE and recycling information120 ThinkCentre User Guide China RoHS Turkish RoHS Appendix D. Restriction of Hazardous Substances Directive RoHSUkraine RoHS India RoHS RoHS compliant as per E-Waste Management & Handling RulesIndex Power-On Password passwordsfeatures workspace, Rescue and RecoveryPage 126 ThinkCentre User Guide