Lenovo 2119, 2121, 3229, 3234, 3235, 3236, 3237, 3238, 3240, 3242, 3243 Chapter10.Troubleshootinganddiagnostics

Chapter10.Troubleshootinganddiagnostics

Thischapterprovidesinformationaboutdiagnosingandtroubleshootingcomputerproblems.Ifyour

computerproblemisnotdescribedhere,seeChapter11“Gettinginformation,help,andservice”onpage

115foradditionaltroubleshootingresources.

Basictroubleshooting

Thefollowingtableprovidesinformationtohelpyoutroubleshootyourcomputerproblems.

Note:Ifyoucannotcorrecttheproblem,havethecomputerserviced.Foralistofserviceandsupport

telephonenumbers,refertotheSafety,Warranty,andSetupGuidethatcomeswithyourcomputerorgoto

theLenovoSupportWebsiteathttp://www.lenovo.com/support/phone.

SymptomAction

Thecomputerdoesnotstart

whenyoupressthepower

switch.

Verifythat:

•Thepowercordiscorrectlyconnectedtotherearofthecomputerandtoa

workingelectricaloutlet.

•Ifyourcomputerhasasecondarypowerswitchontherearofthecomputer,

makesurethatitisswitchedon.

•Thepowerindicatoronthefrontofthecomputerison.

•Thecomputervoltagematchesthevoltageavailableattheelectricaloutletfor

yourcountryorregion.

Themonitorscreenisblank.Verifythat:

•Themonitorsignalcableiscorrectlyconnectedtothemonitorandtothe

appropriatemonitorconnectoronthecomputer.

•Themonitorpowercordiscorrectlyconnectedtothemonitorandtoaworking

electricaloutlet.

•Themonitoristurnedonandthebrightnessandcontrastcontrolsareset

correctly.

•Thecomputervoltagematchesthevoltageavailableattheelectricaloutletfor

yourcountryorregion.

•Ifyourcomputerhastwomonitorconnectors,besuretousetheconnector

onthegraphicscard.

Thekeyboarddoesnotwork.Verifythat:

•Thecomputeristurnedon.

•ThekeyboardissecurelyconnectedtoaUSBconnectoronthecomputer.

•Nokeysarestuck.

Themousedoesnotwork.Verifythat:

•Thecomputeristurnedon.

•ThemouseissecurelyconnectedtoaUSBconnectoronthecomputer.

•Themouseisclean.Referto“Opticalmouse”onpage95forfurtherinformation.

©CopyrightLenovo201297

Contents

Main Page Contents Importantsafetyinformation......v Chapter1.Productoverview......1 Chapter2.Usingyourcomputer...15 Chapter3.Youandyourcomputer..21 Chapter6.Recoveryinformation...77 Chapter7.UsingtheSetupUtility program................85 ii Chapter8.Updatingsystem programs...............91 Chapter9.Preventingproblems...93 Page Page Importantsafetyinformation Serviceandupgrades Staticelectricityprevention Powercordsandpoweradapters Extensioncordsandrelateddevices Plugsandoutlets Externaldevices Generalbatterynotice Rechargeablebatterynotice Heatandproductventilation Operatingenvironment Modemsafetyinformation Lasercompliancestatement Powersupplystatement Cleaningandmaintenance Additionalimportantinformation Page Page Chapter1.Productoverview Features Page Page Specications Lenovoprograms AccessingLenovoprogramsontheWindows7operatingsystem Page AnintroductiontoLenovoprograms AccessingL enovoprogr amsontheWindows8operatingsystem Page Locations Locatingconnectors,controls,andindicatorsonthefrontofyour computer Locatingconnectorsontherearofyourcomputer 10 Page Locatingcomponents Locatingpartsonthesystemboard Figure4Systemboardpartlocationsonpage13showsthelocationsofthepartsonthesystemboard. Page Chapter2.Usingyourcomputer Frequentlyaskedquestions AccessingControlPanelontheWindows8operatingsystem Usingthekeyboard UsingWindowsshortcutkeys UsingtheblueThinkVantagebutton Usingangerprintreader Usingthewheelmouse Adjustingaudio Aboutyourcomputeraudio Settingthevolumefromthedesktop SettingthevolumefromControlPanel UsingCDsandDVDs HandlingandstoringCDandDVDmedia PlayingaCDorDVD RecordingaCDorDVD Page Chapter3.Youandyourcomputer Accessibilityandcomfort Arrangingyourworkspace Comfort Glareandlighting Aircirculation Electricaloutletsandcablelengths RegisteryourcomputerwithLenovo Movingyourcomputertoanothercountryorregion Voltage-selectionswitch Page Chapter4.Security Securityfeatures Attachinganintegratedcablelock Usingpasswords BIOSpasswords Windowspasswords Conguringthengerprintreader Usingandunderstandingrewalls Protectingdataagainstviruses Page Chapter5.Installingorreplacinghardware Handlingstatic-sensitivedevices Installingorreplacinghardware Installingexternaloptions Installingorremovingtheverticalstand InstallingorremovingtheVESAmountbracket Page Removingthecomputercover Page Installingorreplacingamemorymodule Page Replacingtheopticaldrive Page Page Page Page Replacingthesecondaryharddiskdrive Page Page Page Page Page Replacingthebattery Replacingtheacpoweradapter Page Replacingtheacpoweradapterbracket Page Replacingthepowerswitchboard Page Replacingtheheatsink Page Page Replacingthemicroprocessor Page Replacingtheharddiskdrivebracket Page Page Page ReplacingtheWiFicardmodule Page InstallingorremovingtherearWiFiantenna InstallingtherearWiFiantenna RemovingtherearWiFiantenna Page Replacingthesystemfan Page Replacingtheinternalspeaker Page Replacingthekeyboardormouse Completingthepartsreplacement Page Obtainingdevicedrivers Chapter6.Recoveryinformation RecoveryinformationfortheWindows7operatingsystem Creatingandusingrecoverymedia Creatingrecoverymedia Usingrecoverymedia Performingbackupandrecoveryoperations Performingabackupoperation Performingarecoveryoperation UsingtheRescueandRecoveryworkspace Creatingandusingarescuemedium Creatingarescuemedium Usingarescuemedium Reinstallingpreinstalledapplicationsanddevicedrivers Reinstallingsoftwareprograms Reinstallingdevicedrivers Solvingrecoveryproblems RecoveryinformationfortheWindows8operatingsystem Page Chapter7.UsingtheSetupUtilityprogram StartingtheSetupUtilityprogram Viewingandchangingsettings Usingpasswords Passwordconsiderations Power-OnPassword AdministratorPassword HardDiskPassword Setting,changing,anddeletingapassword Erasinglostorforgottenpasswords(clearingCMOS) Enablingordisablingadevice Selectingastartupdevice Selectingatemporarystartupdevice Selectingorchangingthestartupdevicesequence EnablingErPcompliancemode ICEperformancemode ICEthermalalert ExitingtheSetupUtilityprogram Chapter8.Updatingsystemprograms Usingsystemprograms Updating(ashing)theBIOSfromadisc Updating(ashing)theBIOSfromyouroperatingsystem RecoveringfromaPOST/BIOSupdatefailure Chapter9.Preventingproblems Keepingyourcomputercurrent Gettingthelatestdevicedriversforyourcomputer Updatingyouroperatingsystem UsingSystemUpdate Cleaningandmaintenance Basics Cleaningyourcomputer Computer Keyboard Opticalmouse Displayscreen Goodmaintenancepractices Movingyourcomputer Chapter10.Troubleshootinganddiagnostics Basictroubleshooting Troubleshootingprocedure Troubleshooting Audioproblems NoaudioinWindows AnaudiodiscorAutoPlay-enableddiscdoesnotautomaticallyplaywhenitis insertedintoadrive Soundcomesfromoneexternalspeakeronly NoaudioinDOSapplicationsorgames CDproblems AnaudiodiscorAutoPlay-enableddiscdoesnotautomaticallyplaywhenitis insertedintoaCDdrive ACDorDVDdoesnotwork Unabletouseastartable(bootable)recoverymedium,suchastheProductRecovery CD,tostartyourcomputer DVDproblems BlackscreeninsteadofDVDvideo DVDmoviewillnotplay NoaudioorintermittentaudiowhileplayingDVDmovie Playbackisverysloworchoppy Invaliddiscornodiscfoundmessage Intermittentproblems Keyboard,mouse,orpointingdeviceproblems Allorsomekeysonthekeyboarddonotwork Themouseorpointingdevicedoesnotwork Thepointeronthescreendoesnotmovesmoothlywiththemouse Thengerprintreaderdoesnotwork Thewirelesskeyboarddoesnotwork Monitorproblems Wrongcharactersappearonthescreen Themonitorworkswhenyouturnonthecomputer,butgoesblankaftersomeperiod ofcomputerinactivity Themonitorworkswhenyouturnonthecomputer,butgoesblankwhenyoustart someapplicationprograms Theimageappearstobeickering Networkingproblems Ethernetproblems AwirelessLANproblem AwirelessWANproblem Bluetoothproblem Optionproblems Anoptionthatwasjustinstalleddoesnotwork Anoptionthatpreviouslyworkeddoesnotworknow Performanceandlockupproblems Insufcientfreeharddiskdrivespace Excessivenumberoffragmentedles Insufcientmemory Printerproblems Serialportproblems Softwareproblems Whenusingasortfeature,datesdonotsortinthecorrectorder Softwaredoesnotworkasexpected USBproblems LenovoSolutionCenter Chapter11.Gettinginformation,help,andservice Informationresources LenovoThinkVantageT ools LenovoWelcome HelpandSupport LenovoSupportWebsite Helpandservice Usingthedocumentationanddiagnosticprogram Callingforservice Usingotherservices Purchasingadditionalservices Page AppendixA.Notices Trademarks AppendixB.Regulatoryinformation Exportclassicationnotice Electronicemissionsnotices FederalCommunicationsCommissionDeclarationofConformity Page Additionalregulatoryinformation Page AppendixC.WEEEandrecyclinginformation ImportantWEEEinformation Recyclinginformation RecyclinginformationforBrazil BatteryrecyclinginformationforTaiwan BatteryrecyclinginformationfortheEuropeanUnion Page Page Page AppendixE.ENERGYSTARmodelinformation Page Index A B C D L M 134 N O T U V W