Lenovo 3484JMU User Manual Page 100

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SymptomAction
Theoperatingsystemdoesnot
start.
Verifythat:
Thestartupsequenceincludesthedevicewheretheoperatingsystemresides.
Usually,theoperatingsystemisontheharddiskdrive.Formoreinformation,
see“Selectingastartupdevice”onpage76
.
Thecomputerbeepsmultiple
timesbeforetheoperating
systemstarts.
Verifythatnokeysarestuck.
Troubleshootingprocedure
Usethefollowingprocedureasastartingpointfordiagnosingproblemsyouareexperiencingwithyour
computer:
1.Verifythatthecablesforallattacheddevicesareconnectedcorrectlyandsecurely.
2.Verifythatallattacheddevicesthatrequireacpowerareconnectedtoproperlygrounded,functioning
electricaloutlets.
3.VerifythatallattacheddevicesareenabledintheBIOSsettingsofyourcomputer.Formoreinformation
aboutaccessingandchangingtheBIOSsettings,refertoyourChapter7“UsingtheSetupUtility
program”onpage73.
4.Gotothe“Troubleshooting”onpage88andfollowtheinstructionsforthetypeofproblemyouare
experiencing.IftheTroubleshootinginformationdoesnothelpyouresolveaproblem,continuewiththe
nextstep.
5.Tryusingapreviouslycapturedcongurationtoseeifarecentchangetohardwareorsoftwaresettings
hascausedaproblem.Beforerestoringapreviousconguration,captureyourcurrentcongurationin
casetheoldercongurationsettingsdonotsolvetheproblemorhaveadverseaffects.Torestorea
capturedconguration,dothefollowing:
ForWindows7:ClickStartControlPanelSystemandSecuritySystemSystem
ProtectionSystemRestore.
ForWindows8:OpenControlPanel,andthenclickSystemandSecuritySystemSystem
ProtectionSystemRestore.
Ifthisdoesnotcorrecttheproblem,continuewiththenextstep.
6.Runthediagnosticprogram.See“LenovoSolutionCenteronpage104formoreinformation.
Ifthediagnosticprogramdetectsahardwarefailure,contacttheLenovoCustomerSupportCenter.
SeeChapter11“Gettinginformation,help,andservice”onpage107formoreinformation.
Ifyouareunabletorunthediagnosticprogram,contacttheLenovoCustomerSupportCenter.See
Chapter11“Gettinginformation,help,andservice”onpage107formoreinformation.
Ifthediagnosticprogramdoesnotdetectahardwarefailure,continuewiththenextstep.
7.Useanantivirusprogramtoseeifyourcomputerhasbeeninfectedbyavirus.Iftheprogramdetectsa
virus,removethevirus.
8.Ifnoneoftheseactionssolvetheproblem,seektechnicalassistance.SeeChapter11“Getting
information,help,andservice”onpage107formoreinformation.
Troubleshooting
Usethetroubleshootinginformationtondsolutionstoproblemsthathavedenitesymptoms.
Ifthesymptomyourcomputerisexperiencingoccurredimmediatelyafteryouinstalledanewhardware
optionornewsoftware,dothefollowingbeforereferringtothetroubleshootinginformation:
88ThinkCentreUserGuide
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