Lenovo 3426, 3398, 3397, 3399, 3414, 3396, 3416 Image appears to be flickering, Image is discolored

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If these actions do not correct the problem, run the diagnostic programs (see “Lenovo Solution Center” on page 74 for instructions). If you need technical assistance, see Chapter 11 “Getting information, help, and service” on page 75.

The monitor works when you turn on the computer, but goes blank when you start some application programs

Symptom: The monitor works when you turn on the computer, but goes blank when you start some application programs.

Action:

Verify that the necessary device drivers for the application programs are installed. Refer to the documentation for the affected application program to see if device drivers are required.

If this action do not correct the problem, run the diagnostic programs (see “Lenovo Solution Center” on page 74 for instructions). If you need technical assistance, see Chapter 11 “Getting information, help, and service” on page 75.

The image appears to be flickering

Symptom: The image appears to be flickering.

Actions:

The monitor might be operating in a low-refresh rate display mode. Set the monitor to the highest, noninterlaced refresh rate supported by your monitor and the video controller in your computer.

The monitor might be affected by interference from nearby equipment. Magnetic fields around other devices, such as transformers, appliances, fluorescent lights, and other monitors might be causing the problem. Move fluorescent desk lighting or any equipment that produces magnetic fields farther away from the monitor. If this does not correct the problem, do the following:

1.Turn off the monitor. (Moving a color monitor while it is turned on might cause screen discoloration.)

2.Adjust the placement of the monitor and other devices so that they are at least 305 mm (12 inches) apart.

3.Turn on the monitor.

You can reset the refresh rate through your operating system Control Panel:

On the Windows 7 operating system, click Start Control Panel Hardware and Sound Adjust screen resolution Advanced Settings. Then click the Monitor tab and select a new refresh rate.

On the Windows 8 operating system, open Control Panel and click Hardware and Sound Adjust screen resolution Advanced Settings. Then click the Monitor tab and select a new refresh rate.

See your operating system documentation or help for further information on monitor settings.

If these actions do not correct the problem, your monitor might need service. See Chapter 11 “Getting information, help, and service” on page 75 for details.

The image is discolored

Symptom: The image is discolored.

Action: The monitor might be affected by interference from nearby equipment. Magnetic fields around other devices, such as transformers, appliances, fluorescent lights, and other monitors might be causing the problem. Move fluorescent desk lighting or any equipment that produces magnetic fields further away from the monitor. If this does not correct the problem, do the following:

1. Turn off the monitor. (Moving a color monitor while it is turned on might cause screen discoloration.)

66ThinkCentre Edge User Guide

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Contents ThinkCentre Edge User Guide Third Edition September Copyright Lenovo Contents Appendix A. Notices Iii Iv ThinkCentre Edge User Guide Important safety information Service and upgradesStatic electricity prevention Power cords and power adapters Extension cords and related devicesPlugs and outlets External devicesHeat and product ventilation Modem safety information Operating environmentPower supply statement Cleaning and maintenanceLaser compliance statement ThinkCentre Edge User Guide Features Product overviewPower supply System management featuresInput/Output I/O features ConnectivitySecurity features Preinstalled software programsPreinstalled operating system Specifications Accessing Lenovo programs on the Windows 7 operating systemLenovo programs Accessing Lenovo programs from Control Panel Program Icon nameCommunications Utility Accessing Lenovo programs on the Windows 8 operating systemAn introduction to Lenovo programs Fingerprint SoftwarePassword Manager Lenovo SettingsLenovo Solution Center Power ManagerSystem Update LocationsView Management Utility Connector Description Locating connectors on the rear of your computer Hdmi connectorAdjusting the computer stand Machine type and model labelFollowing is a sample of the machine type and model label Accessing Control Panel on the Windows 8 operating system Using your computerFrequently asked questions Where can I find help about the Windows operating system?Using the blue ThinkVantage button Using the keyboardUsing Windows shortcut keys Using a fingerprint readerSetting the volume from the desktop Using the wheel mouseAdjusting audio Adding the volume icon to the taskbarSound section, click Adjust system volume Setting the volume from Control PanelUsing CDs and DVDs Handling and storing CD and DVD mediaUsing the single-touch and multi-touch feature Playing a CD or DVDRecording a CD or DVD Using the single-touch feature Using the multi-touch featureArranging your workspace Accessibility and comfortYou and your computer ComfortGlare and lighting Air circulationElectrical outlets and cable lengths Voltage-selection switch Register your computer with LenovoMoving your computer to another country or region Replacement power cords Security features SecurityUsing passwords Bios passwordsAttaching an integrated cable lock Windows passwords Using and understanding firewallsProtecting data against viruses ThinkCentre Edge User Guide Installing external options Installing or replacing hardwareInstalling or replacing hardware Removing and reinstalling the system stand hinge coverRemoving the system stand hinge cover Removing and reinstalling the system stand Removing the system stand Removing and reinstalling the foot stands Removing the rubber piece from each foot standReinstall the rubber piece on each foot stand Replacing the wireless keyboard Replacing the USB keyboard or mouseReplacing the wireless mouse Installing the keyboard batteriesInstalling or replacing hardware Obtaining device drivers Recovery information Recovery information for the Windows 7 operating systemCreating and using recovery media Using recovery media Performing backup and recovery operationsCreating recovery media Performing a backup operationUsing the Rescue and Recovery workspace Performing a recovery operationClick the Restore your system from a backup icon Creating and using a rescue medium Using a rescue mediumCreating a rescue medium Reinstalling preinstalled applications and device drivers Reinstalling preinstalled applicationsReinstalling preinstalled device drivers Reinstalling software programs Reinstalling device driversSolving recovery problems Recovery information for the Windows 8 operating system Refreshing your computerThinkCentre Edge User Guide Viewing and changing settings Using the Setup Utility programStarting the Setup Utility program Password considerationsSetting, changing, and deleting a password Power-On PasswordAdministrator Password Enabling or disabling a deviceSelecting a temporary startup device Exiting the Setup Utility programSelecting a startup device Selecting or changing the startup device sequenceThinkCentre Edge User Guide Using system programs Updating flashing the Bios from a discUpdating system programs Updating flashing the Bios from your operating system Click Downloads and driversKeeping your computer current Preventing problemsUsing System Update Getting the latest device drivers for your computerCleaning your computer BasicsOptical mouse ComputerKeyboard Display screenCleaning a glass-screen surface Good maintenance practicesCleaning a liquid crystal display LCD surface Moving your computerPreventing problems ThinkCentre Edge User Guide Troubleshooting and diagnostics Basic troubleshootingTroubleshooting procedure Troubleshooting Audio problemsNo audio in Windows Sound comes from one external speaker only No audio in DOS applications or gamesCD problems CD or DVD does not workDVD movie will not play DVD problemsBlack screen instead of DVD video No audio or intermittent audio while playing DVD movieInvalid disc or no disc found message Intermittent problemsKeyboard, mouse, or pointing device problems All or some keys on the keyboard do not workFingerprint reader does not work Mouse or pointing device does not workPointer on the screen does not move smoothly with the mouse Click Hardware and Sound Click Devices and PrintersMonitor problems Wireless keyboard does not workWrong characters appear on the screen Image appears to be flickering Image is discoloredYour computer cannot connect to the network Networking problemsEthernet problems Click Start Control Panel Click Hardware and SoundWireless LAN problem Wake on LAN feature is not workingAdapter stops working for no apparent reason Bluetooth problem Option problemsWireless WAN problem An option that was just installed does not workInsufficient free hard disk drive space Performance and lockup problemsAn option that previously worked does not work now Click Start ComputerExcessive number of fragmented files Software problems Printer problemsSerial port problems Click OptimizeUSB problems Software does not work as expectedLenovo Solution Center Getting information, help, and service Calling for service Help and serviceUsing the documentation and diagnostic programs Lenovo Support Web siteUsing other services Purchasing additional servicesThinkCentre Edge User Guide Appendix A. Notices Trademarks Electronic emissions notices Appendix B. Regulatory informationExport classification notice Federal Communications Commission Declaration of ConformityThinkCentre Edge User Guide Additional regulatory information ThinkCentre Edge User Guide Appendix C. Weee and recycling information Important Weee informationRecycling information Battery recycling information for Taiwan Recycling information for BrazilBattery recycling information for the European Union ThinkCentre Edge User Guide China RoHS Turkish RoHS Ukraine RoHSIndia RoHS Appendix E. Energy Star model information Windows 7 or Windows 8 operating systemThinkCentre Edge User Guide Taşıma ve nakliye sırasında dikkat edilecek hususlar İmalatçı ya da ithalatçı firmaya ilişkin bilgilerBakım, onarım ve kullanımda uyulması gereken kurallar Kullanım hatalarına ilişkin bilgilerBağlantı ve montaja ilişkin bilgiler Destek Bilgisayar Ve İletişim Hiz. Tic. A.Ş Garanti Hizmetinin Alınabileceği MerkezlerBdh Bilişim Destek Hiz. San. Ve Tic. A.Ş Bdh Bilişim Destek Hizmetleri San.Ve TicBdh Bilişim Destek Hizmetleri San.Ve Tic.Aş Bilgi Birikim Sistemleri Elktr. ve BilgYedi Yirmidört Bilişim Hizmetleri Ticaret A.S Bdh Bilişim Destek Hizmetleri Sanayi Ve Ticaret A.Ş Adapa Bilgi Sistemleri Tur.San. Ve Tic.A.ŞBdh Bilişim Destek Hizmetleri San.Ve Tic. A.Ş Bdh Bilişim Destek Hizmetleri San.Ve Tic.A.ŞŞanliurfa Index Password Administrator Considerations