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Lenovo 3484JMU manual Removing the WiFi card module

Models: 3484JMU

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4. Grasp the WiFi adapter card that is currently installed and gently pull it out of the slot.

Figure 32. Removing the WiFi adapter card

Note: The card fits tightly into the card slot. If necessary, alternate moving each side of the card a small amount until it is removed from the card slot.

Removing the WiFi card module

To remove the WiFi card module, do the following:

1.Remove the WiFi adapter card from the computer, and then disconnect the front and rear WiFi antenna cables from the WiFi card module.

Figure 33. Removing the WiFi antenna cables

Chapter 5. Installing or replacing hardware 55

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Lenovo 3484JMU manual Removing the WiFi card module

Contents

Machine Types 3484, 3485, and ThinkCentre User GuideThird Edition September Copyright Lenovo Chapter 5. Installing or replacing ContentsImportant safety information Chapter 2. Using your computerChapter 10. Troubleshooting and Chapter 6. Recovery informationChapter 7. Using the Setup Utility Chapter 9. Preventing problemsAppendix D. Restriction of Hazardous Substances Directive RoHS Appendix C. WEEE and recycling informationIndex 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 adaptersExternal devices Plugs and outletsHeat and product ventilation 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 features4 ThinkCentre User Guide Microsoft Windows 7 operating systemMicrosoft Windows 8 operating system Linux Microsoft Windows XP Professional SPAccessing Lenovo programs on the Windows 7 operating system SpecificationsLenovo programs Table 2. Programs in Control Panel Accessing Lenovo programs from the Lenovo ThinkVantage Tools programAccessing Lenovo programs from Control Panel Table 1. Programs in the Lenovo ThinkVantage Tools programFingerprint Software Accessing Lenovo programs on the Windows 8 operating systemAn introduction to Lenovo programs Communications UtilityPower Manager Lenovo SettingsLenovo Solution Center Password ManagerLocations System UpdateView Management Utility USB connector USB port Figure 1. Front connector, control, and indicator locationsHard disk drive activity indicator Power indicator Power switch USB connector USB port Headphone connector Microphone connectorDescription Locating connectors on the rear of your computerFigure 2. Rear connector locations ConnectorFigure 3. Component locations Locating componentsConnector DescriptionFigure 4. System board part locations Locating parts on the system boardFigure 5. Drive bay locations Locating internal drivesThe 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 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 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 2. In the Sound section, click Adjust system volumeRecording a CD or DVD Playing a CD or DVD22 ThinkCentre User Guide Comfort Accessibility and comfortChapter 3. You and your computer Arranging your workspaceAir circulation Glare and lightingElectrical outlets and cable lengths Registering your computer Voltage-selection switchMoving your computer to another country or region For power cord information and part numbers, go to Replacement power cordsChapter 4. Security Security featuresFigure 7. Installing a padlock Locking the computer coverFigure 8. Integrated cable lock Using passwordsBIOS passwords Attaching an integrated cable lockProtecting data against viruses Windows passwordsConfiguring the fingerprint reader Using and understanding firewallsChapter 4. Security 32 ThinkCentre User Guide Handling static-sensitive devices Chapter 5. Installing or replacing hardwareInstalling or replacing hardware Installing external optionsRemoving the computer cover Removing and reinstalling the front bezel What to do next Installing or replacing a PCI cardFigure 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 What to do next Replacing the primary hard disk driveFigure 18. Removing the old battery Figure 19. Installing a new batteryFigure 20. Removing the primary hard disk drive What to do next Replacing the optical driveFigure 21. Installing the hard disk drive Figure 22. Connecting a SATA hard disk driveFigure 23. Removing the optical drive 46 ThinkCentre User Guide Figure 24. Installing the optical driveFigure 25. Connecting the optical drive What to do nextHazardous moving parts. Keep fingers and other body parts away Replacing the power supply assemblyFigure 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 and open the retainer to access the microprocessorFigure 28. Accessing the microprocessor 5. Lift the small handle13. 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 58 ThinkCentre User Guide Figure 37. Installing the WiFi antenna cablesFigure 38. Installing the WiFi adapter card What to do nextWhat to do next Installing or removing the rear WiFi antennaInstalling the rear WiFi antenna Removing the rear WiFi antennaInstalling 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 Figure 45. Reinstalling the computer cover Obtaining device driversRecovery information for the Windows 7 operating system Chapter 6. Recovery informationCreating and using recovery media Performing a backup operation Performing backup and recovery operationsCreating recovery media Using recovery mediaPerforming 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 70 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 computer72 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 SetupSelecting or changing the startup device sequence Enabling ErP compliance modeSelecting a startup device Selecting a temporary startup deviceExiting 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 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 maintenanceKeyboard Cleaning your computerCleaning a flat-panel monitor surface ComputerCleaning 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 Basic troubleshooting Chapter 10. Troubleshooting and diagnosticsTroubleshooting Troubleshooting procedureNo audio in Windows Audio problemsSound 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 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 mouseWrong characters appear on the screen Monitor problemsThe image is discolored The image appears to be flickering96 ThinkCentre User Guide 2. Click Hardware and Sound Networking problemsEthernet problems Your computer cannot connect to the networkThe Wake on LAN feature is not working A wireless LAN problemThe adapter stops working for no apparent reason An option that was just installed does not work Option problemsA wireless WAN problem Bluetooth problemInsufficient free hard disk drive space Performance and lockup problems3. Click Disk Cleanup An option that previously worked does not work nowExcessive number of fragmented files 2. Click Programs 3. Click Turn Windows features on or off3. Click Disk Cleanup 4. Click Clean up system files 6. In the Programs and Features area, click the Clean up buttonSerial 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 104 ThinkCentre User Guide USB problemsDiagnostic programs Lenovo Solution CenterPC-Doctor for DOS Creating a diagnostic discRunning the diagnostic program from a diagnostic disc Lenovo ThinkVantage Toolbox106 ThinkCentre User Guide Note For additional help, press the F1 keyLenovo ThinkVantage Tools Chapter 11. Getting information, help, and serviceSafety and Warranty Information resourcesLenovo Support Web site Help and serviceUsing the documentation and diagnostic programs Calling for servicePurchasing additional services Using other 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 Electronic emissions notices Appendix B. Regulatory informationExport classification notice Television output noticeGerman Class B compliance statement Deutschsprachiger EU Hinweis Industry Canada Class B emission compliance statementDeutschland Keyboard and mouse compliance statement for Taiwan Lenovo product service information for TaiwanAdditional regulatory information Korea Class B compliance statement Japanese VCCI Class B statement116 ThinkCentre User Guide Important WEEE information Appendix C. WEEE and recycling informationRecycling 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 Union120 ThinkCentre User Guide China RoHS Turkish RoHS Appendix D. Restriction of Hazardous Substances Directive RoHSUkraine RoHS RoHS compliant as per E-Waste Management & Handling Rules India RoHSIndex workspace, Rescue and Recovery Power-On Passwordpasswords featuresPage 126 ThinkCentre User Guide