Lenovo ThinkCentre Edge 72z - Troubleshooting Procedure

SymptomAction
Thewirelesskeyboardormouse
doesnotwork.
Verifythat:
•Thecomputeristurnedon.
•Thebatteryorbatteriesinstalledinthewirelesskeyboardormouseareingood
condition.
•Thewirelesscongurationsareallsetcorrectly.Youmightneedtoreferto
thedocumentationthatcomewiththewirelesskeyboardormouse,orrefer
toyourWindowsHelpandSupportinformationsystemforwirelessrelated
instructions.Ifyourwirelessmousehasadongle,makesurethedongleis
correctlyconnectedtooneoftheUSBconnectorsonthecomputer.
•Forthewirelesskeyboard,nokeysarestuck.
•Thewirelessmouseisclean.
Theoperatingsystemdoesnot
start.
Verifythat:
•Thestartupsequenceincludesthedevicewheretheoperatingsystemresides.
Usually,theoperatingsystemisontheharddiskdrive.Formoreinformation,
see“Selectingastartupdevice”onpage55
.
Thecomputerbeepsmultiple
timesbeforetheoperating
systemstarts.
Verifythatnokeysarestuck.
Troubleshootingprocedure
Usethefollowingprocedureasastartingpointfordiagnosingproblemsyouareexperiencingwithyour
computer:
1.Verifythatthecablesforallattacheddevicesareconnectedcorrectlyandsecurely.
2.Verifythatallattacheddevicesthatrequireacpowerareconnectedtoproperlygrounded,functioning
electricaloutlets.
3.VerifythatallattacheddevicesareenabledintheBIOSsettingsofyourcomputer.Formoreinformation
aboutaccessingandchangingtheBIOSsettings,refertoyourChapter6“UsingtheSetupUtility
program”onpage53.
4.Gotothe“Troubleshooting”onpage37andfollowtheinstructionsforthetypeofproblemyouare
experiencing.IftheTroubleshootinginformationdoesnothelpyouresolveaproblem,continuewiththe
nextstep.
5.Tryusingapreviouslycapturedcongurationtoseeifarecentchangetohardwareorsoftwaresettings
hascausedaproblem.Beforerestoringapreviousconguration,captureyourcurrentcongurationin
casetheoldercongurationsettingsdonotsolvetheproblemorhaveadverseaffects.Torestorea
capturedconguration,clickStart➙ControlPanel➙SystemandSecurity➙System➙System
Protection➙SystemRestore.Ifthisdoesnotcorrecttheproblem,continuewiththenextstep.
6.Runthediagnosticprograms.See“Diagnostics”onpage51formoreinformation.
•Ifthediagnosticprogramsdetectahardwarefailure,contacttheLenovoCustomerSupportCenter.
See“Additionalinformationresources”onpage31formoreinformation.
•Ifyouareunabletorunthediagnosticprograms,contacttheLenovoCustomerSupportCenter.See
“Additionalinformationresources”onpage31formoreinformation.
•Ifthediagnosticprogramsdonotdetectahardwarefailure,continuewiththenextstep.
7.Useanantivirusprogramtoseeifyourcomputerhasbeeninfectedbyavirus.Iftheprogramdetectsa
virus,removethevirus.
8.Ifnoneoftheseactionssolvetheproblem,seektechnicalassistance.See“Additionalinformation
resources”onpage31
formoreinformation.
36ThinkCentreEdgeHardwareMaintenanceManual