Lenovo 3493, 3493DFU, 3496

5.Disconnectcommunicationcables,suchasmodemornetworkcables,fromtheoutletsrst,andthen

disconnecttheotherendsfromthecomputer.

6.Notewhereanyremainingcablesareattachedtothecomputer;then,removethem.

7.Ifyousavedtheoriginalshippingcartonsandpackingmaterials,usethemtopacktheunits.Ifyouare

usingdifferentcartons,cushiontheunitstoavoiddamage.

Chapter9.Pr eventingproblems89

Contents

Main Page Contents Importantsafetyinformation......v Chapter1.Productoverview......1 Chapter2.Usingyourcomputer...15 Chapter3.Youandyourcomputer..21 Chapter6.Recoveryinformation...69 Chapter7.UsingtheSetupUtility program................77 ii Chapter8.Updatingsystem programs...............83 Chapter9.Preventingproblems...85 Page Page Importantsafetyinformation Serviceandupgrades Staticelectricityprevention Powercordsandpoweradapters Extensioncordsandrelateddevices Plugsandoutlets Externaldevices Heatandproductventilation Operatingenvironment Modemsafetyinformation Lasercompliancestatement Powersupplystatement Cleaningandmaintenance Page Chapter1.Productoverview Features Page Page Specications 4 Thissectionliststhephysicalspecicationsforyourcomputer. Lenovoprograms AccessingLenovoprogramsontheWindows7operatingsystem AccessingLenovoprogramsontheWindows8operatingsystem AnintroductiontoLenovoprograms Page Locations Locatingconnectors,controls,andindicatorsonthefrontofyour computer Locatingconnectorsontherearofyourcomputer 10 Locatingcomponents Locatingpartsonthesystemboard Figure4Systemboardpartlocationsonpage12showsthelocationsofthepartsonthesystemboard. 12 Locatinginternaldrives 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 Registeringyourcomputer Movingyourcomputertoanothercountryorregion Voltage-selectionswitch Page Chapter4.Security Securityfeatures Page Attachinganintegratedcablelock Usingpasswords BIOSpasswords Windowspasswords Conguringthengerprintreader Usingandunderstandingrewalls Protectingdataagainstviruses Page Page Chapter5.Installingorreplacinghardware Handlingstatic-sensitivedevices Installingorreplacinghardware Installingexternaloptions Removingthecomputercover Removingandreinstallingthefrontbezel Page Accessingthesystemboardcomponentsanddrives InstallingorreplacingaPCIcard Page Installingorreplacingamemorymodule Replacingthebattery Page Replacingtheharddiskdrive Page Replacingtheopticaldrive Page Page Replacingthepowersupplyassembly Page Page Page Replacingtheheatsinkandfanassembly Page Page Replacingthemicroprocessor Page Page Replacingthesystemfanassembly ReplacingthefrontaudioandUSBassembly ReplacingtheWiFiunits RemovingtheWiFiadaptercard RemovingtheWiFicardmodule Page Page Page InstallingorremovingtherearWiFiantenna InstallingtherearWiFiantenna RemovingtherearWiFiantenna InstallingorremovingthefrontWiFiantenna InstallingthefrontWiFiantenna Removingthefr ontWiFiantenna Replacingthekeyboardormouse Completingthepartsreplacement Page 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 ExitingtheSetupUtilityprogram Page 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 Page Page 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 Theimageisdiscolored Networkingproblems Ethernetproblems AwirelessLANproblem AwirelessWANproblem Bluetoothproblem Optionproblems Anoptionthatwasjustinstalleddoesnotwork Anoptionthatpreviouslyworkeddoesnotworknow Performanceandlockupproblems Insufcientfreeharddiskdrivespace Excessivenumberoffragmentedles Insufcientmemory Printerproblems Serialportproblems Softwareproblems Whenusingasortfeature,datesdonotsortinthecorrectorder Softwaredoesnotworkasexpected USBproblems Diagnosticprograms LenovoSolutionCenter LenovoThinkVantageToolbox PC-DoctorforDOS Creatingadiagnosticdisc Runningthediagnosticprogramfromadiagnosticdisc Page Chapter11.Gettinginformation,help,andservice Informationresources LenovoThinkVantageT ools LenovoWelcome HelpandSupport LenovoSupportWebsite Helpandservice Usingthedocumentationanddiagnosticprograms Callingforservice Usingotherservices Purchasingadditionalservices Page AppendixA.Notices Trademarks AppendixB.Regulatoryinformation Exportclassicationnotice Televisionoutputnotice Electronicemissionsnotices FederalCommunicationsCommissionDeclarationofConformity Page Additionalregulatoryinformation Page AppendixC.WEEEandrecyclinginformation ImportantWEEEinformation Recyclinginformation RecyclinginformationforBrazil BatteryrecyclinginformationforTaiwan BatteryrecyclinginformationfortheEuropeanUnion Page Page Page Index A B C D K L 128 M N T U V W