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Chapter10.Troubleshootinganddiagnostics
Thischapterprovidesinformationaboutdiagnosingandtroubleshootingcomputerproblems.Ifyour
computerproblemisnotdescribedhere,seeChapter11“Gettinginformation,help,andservice”onpage
109
foradditionaltroubleshootingresources.
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”onpage87
forfurtherinformation.
©CopyrightLenovo2013
91
- ThinkCentreM93z 1
- UserGuide 1
- SecondEdition(September2013) 2
- Contents 3
- Importantsafetyinformation 7
- Powercordsandpoweradapters 8
- Plugsandoutlets 9
- Externaldevices 9
- Heatandproductventilation 9
- Operatingenvironment 10
- Modemsafetyinformation 10
- Lasercompliancestatement 11
- Powersupplystatement 11
- Cleaningandmaintenance 11
- Chapter1.Productoverview 13
- Chapter1.Productoverview3 15
- Specications 17
- Lenovoprograms 18
- Chapter1.Productoverview7 19
- Locations 21
- 10ThinkCentreM93zUserGuide 22
- Chapter1.Productoverview11 23
- .Productoverview13 25
- Locatingcomponents 27
- Locatingpartsonthesystemboard 28
- Adjustingtheframestand 29
- Adjustingthemonitorstand 30
- Chapter1.Productoverview19 31
- Machinetypeandmodellabel 32
- Chapter2.Usingyourcomputer 33
- Usingthekeyboard 34
- UsingWindowsshortcutkeys 34
- Usingangerprintreader 34
- Usingthewheelmouse 35
- Adjustingaudio 35
- Aboutyourcomputeraudio 35
- UsingCDsandDVDs 36
- PlayingaCDorDVD 37
- RecordingaCDorDVD 37
- Chapter3.Youandyourcomputer 39
- Glareandlighting 40
- Aircirculation 40
- Registeringyourcomputer 41
- Voltage-selectionswitch 41
- Replacementpowercords 42
- Chapter4.Security 43
- Usingpasswords 44
- BIOSpasswords 44
- Windowspasswords 45
- Conguringthengerprintreader 45
- Usingandunderstandingrewalls 45
- Protectingdataagainstviruses 45
- 34ThinkCentreM93zUserGuide 46
- Installingorreplacinghardware 47
- Installingexternaloptions 47
- Installingthemonitorstand 48
- Removingthecomputercover 50
- Attention: 51
- Figure15.Removingtheframefoot 52
- Replacingtheharddiskdrive 54
- 1,pin2,pin3,andpin 55
- Replacingtheopticaldrive 56
- Replacingtheconverterboard 57
- Replacingtheheatsink 58
- Figure25.Removingtheheatsink 59
- Replacingthemicroprocessor 60
- 2onthemicroprocessor 62
- Replacingtheinternalspeakers 63
- Replacingthethermalsensor 64
- Replacingtheintegratedcamera 66
- ReplacingtheWi-Ficard 68
- Figure35.RemovingtheWi-Ficard 69
- Replacingthecardreader 70
- ReplacingtheExpressCard 71
- Replacingthemouse 75
- Figure41.Mouseconnectors 76
- Replacingthekeyboard 78
- Completingthepartsreplacement 79
- Obtainingdevicedrivers 80
- Chapter6.Recoveryinformation 81
- Creatingrecoverymedia 82
- Usingrecoverymedia 82
- Performingabackupoperation 82
- Performingarecoveryoperation 83
- Creatingandusingarescuemedium 84
- Reinstallingsoftwareprograms 86
- Reinstallingdevicedrivers 86
- Solvingrecoveryproblems 86
- 76ThinkCentreM93zUserGuide 88
- Viewingandchangingsettings 89
- Passwordconsiderations 90
- Power-OnPassword 90
- AdministratorPassword 90
- HardDiskPassword 90
- Enablingordisablingadevice 91
- Selectingastartupdevice 92
- EnablingErPcompliancemode 92
- ICEperformancemode 93
- ICEthermalalert 93
- ExitingtheSetupUtilityprogram 94
- Usingsystemprograms 95
- Chapter9.Preventingproblems 97
- UsingSystemUpdate 98
- Cleaningyourcomputer 99
- Goodmaintenancepractices 100
- Movingyourcomputer 101
- 90ThinkCentreM93zUserGuide 102
- Basictroubleshooting 103
- Troubleshooting 104
- Troubleshootingprocedure 104
- Audioproblems 105
- CDproblems 106
- DVDproblems 107
- DVDmoviewillnotplay 108
- Playbackisverysloworchoppy 108
- Intermittentproblems 109
- ThinkCentreM93zUserGuide 110
- Monitorproblems 111
- Networkingproblems 112
- Ethernetproblems 113
- AwirelessLANproblem 114
- AwirelessWANproblem 114
- Optionproblems 115
- Performanceandlockupproblems 116
- Printerproblems 117
- Serialportproblems 118
- Softwareproblems 118
- USBproblems 119
- LenovoSolutionCenter 120
- ©CopyrightLenovo2013 121
- LenovoSupportWebsite 122
- Helpandservice 122
- Callingforservice 122
- Usingotherservices 123
- Purchasingadditionalservices 123
- 112ThinkCentreM93zUserGuide 124
- AppendixA.Notices 125
- Trademarks 126
- Exportclassicationnotice 127
- Electronicemissionsnotices 127
- EurAsianComplianceMark 129
- 118ThinkCentreM93zUserGuide 130
- ImportantWEEEinformation 131
- RecyclinginformationforJapan 131
- RecyclinginformationforBrazil 132
- 122ThinkCentreM93zUserGuide 134
- EuropeanUnionRoHS 135
- ChinaRoHS 135
- TurkishRoHS 135
- UkraineRoHS 136
- IndiaRoHS 136
- AppendixE.ChinaEnergyLabel 137
- 126ThinkCentreM93zUserGuide 138
- 128ThinkCentreM93zUserGuide 140
- 130ThinkCentreM93zUserGuide 142
- 132ThinkCentreM93zUserGuide 144
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