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•Ifthisdoesnotcorrecttheproblem,followthesolutionsfor“ACDorDVDdoesnotwork”onpage52.
ACDorDVDdoesnotwork
Solutions:
•Ensurethatthediscisinsertedcorrectly,withitslabelup.
•Ensurethatthediscyouareusingisclean.Toremovedustorfingerprints,wipethedisccleanwithasoft
clothfromthecentertotheoutside.Wipingadiscinacircularmotionmightcauselossofdata.
•Ensurethatthediscyouareusingisnotscratchedordamaged.Tryinsertinganotherdiscthatyou
knowisgood.Ifyoucannotreadfromaknown-gooddisc,youmighthaveaproblemwithyouroptical
driveorthecablingtoyouropticaldrive.Ensurethatthepowercableandsignalcablearesecurely
connectedtothedrive.
Unabletouseabootablerecoverymedium,suchastheProductRecoveryCD,to
startyourcomputer
Solution:EnsurethattheCDorDVDdriveisinthestartupsequencebeforetheharddiskdrive.Referto
“Selectingorchangingthestartupdevicesequence”onpage38forinformationonviewingandchanging
thestartupsequence.Notethatonsomemodelsthestartupsequenceispermanentlysetandcannot
bechanged.
DVDproblems
ThissectionprovidessolutionstoDVD-relatedproblems.
BlackscreeninsteadofDVDvideo
Solutions:
•RestarttheDVDplayerprogram.
•Tryalowerscreenresolutionorcolordepth.
•Closeanyopenfiles,andthenrestartthecomputer.
DVDmoviedoesnotplay
Solutions:
•Ensurethatthediscsurfaceiscleanandnotscratched.
•Checkthediscorpackageforregionalcoding.Youmightneedtopurchaseadiscwithcodingfor
theregionwhereyouareusingyourcomputer.
NoaudioorintermittentaudiowhileplayingaDVDmovie
Solutions:
•Checkthevolumecontrolsettingsonyourcomputerandonyourspeakers.
•Ensurethatthediscsurfaceiscleanandnotscratched.
•Checkallcableconnectionstoandfromthespeakers.
•UsetheDVDmenuforthevideotoselectadifferentaudiotrack.
Playbackissloworchoppy
Solutions:
•Disableanybackgroundprograms,suchasAntiVirusorDesktopThemes.
•Ensurethatvideoresolutionissettolessthan1152x864pixels.
52ThinkCentreM79UserGuide
- ThinkCentreM79 1
- UserGuide 1
- FirstEdition(July2014) 2
- Contents 3
- Beforeusingthismanual 7
- Serviceandupgrades 7
- Staticelectricityprevention 8
- Powercordsandpoweradapters 8
- Plugsandoutlets 9
- Externaldevices 9
- Heatandproductventilation 9
- Operatingenvironment 10
- Lasercompliancestatement 10
- Powersupplystatement 11
- Cleaningandmaintenance 11
- Chapter1.Productoverview 13
- 2ThinkCentreM79UserGuide 14
- 4ThinkCentreM79UserGuide 16
- Locatingcomponents 17
- Locatingpartsonthesystemboard 18
- Locatinginternaldrives 19
- Features 20
- Chapter1.Productoverview9 21
- Chapter1.Productoverview11 23
- Specifications 24
- Lenovoprograms 24
- Chapter1.Productoverview13 25
- Chapter1.Productoverview15 27
- Chapter2.Usingyourcomputer 29
- Usingthefingerprintreader 30
- Usingthewheelmouse 30
- Managingpower 30
- AutomaticPower-onfeatures 31
- Settingthecomputervolume 31
- Usingadisc 32
- Usingtheopticaldrive 32
- Handlingandstoringadisc 33
- Playingandremovingadisc 33
- Recordingadisc 33
- Frequentlyaskedquestions 35
- Chapter3.Youandyourcomputer 37
- Glareandlighting 38
- Aircirculation 38
- Accessibilityinformation 38
- Chapter3.Youandyourcomputer27 39
- Chapter3.Youandyourcomputer29 41
- Chapter4.Security 43
- 32ThinkCentreM79UserGuide 44
- Usingpasswords 45
- BIOSpasswords 45
- Configuringthefingerprintreader 46
- Usingandunderstandingfirewalls 46
- Protectingdataagainstviruses 46
- Windowspasswords 46
- Chapter5.Advancedconfiguration 47
- UsingBIOSpasswords 48
- Enablingordisablingadevice 49
- Selectingastartupdevice 50
- EnablingErPLPScompliancemode 50
- ICEperformancemode 51
- ICEthermalalert 51
- ExitingtheSetupUtilityprogram 52
- UpdatingorrecoveringtheBIOS 52
- BIOSlevels 52
- Usingsystemprograms 52
- UpdatingtheBIOSfromadisc 53
- 44ThinkCentreM79UserGuide 56
- Chapter6.Preventingproblems 57
- UsingtheSystemUpdateprogram 58
- Cleaningyourcomputer 58
- Goodmaintenancepractices 59
- Movingyourcomputer 60
- Basictroubleshooting 61
- Troubleshootingprocedure 62
- Troubleshooting 62
- Audioproblems 63
- CDproblems 63
- DVDproblems 64
- Intermittentproblems 65
- Harddiskdriveproblems 65
- Keysonthekeyboarddonotwork 66
- Themousedoesnotwork 66
- Monitorproblems 67
- Networkingproblems 68
- HeadsetprofileorAVprofile 69
- Performanceandlockupproblems 70
- Theprinterdoesnotwork 71
- Softwareproblems 71
- Diagnostics 72
- LenovoSolutionCenter 72
- 62ThinkCentreM79UserGuide 74
- Chapter8.Recoveryinformation 75
- Creatingrecoverymedia 76
- Usingrecoverymedia 76
- Performingabackupoperation 76
- Performingarecoveryoperation 76
- Creatingandusingarescuemedium 78
- Solvingrecoveryproblems 80
- Refreshingyourcomputer 80
- 70ThinkCentreM79UserGuide 82
- Installingorreplacinghardware 83
- Installingexternaloptions 83
- Removingthecomputercover 83
- 1inwardandpivotthedrive 87
- InstallingorreplacingaPCIcard 89
- Figure17.RemovingaPCIcard 90
- Replacingthebattery 91
- Replacingtheharddiskdrive 92
- Replacingthesolid-statedrive 94
- 88ThinkCentreM79UserGuide 100
- Replacingtheslimcardreader 102
- ThinkCentreM79UserGuide 104
- Replacingthemicroprocessor 110
- Replacingthesystemfanassembly 114
- Replacingthethermalsensor 115
- 1inthechassis.Then,alignthe 117
- 1and2inthechassis 117
- 106ThinkCentreM79UserGuide 118
- RemovingthefrontWi-Fiantenna 119
- InstallingtherearWi-Fiantenna 119
- RemovingtherearWi-Fiantenna 120
- ReplacingtheWi-Fiunits 121
- RemovingtheWi-Ficardmodule 122
- InstallingtheWi-Fiunits 123
- 112ThinkCentreM79UserGuide 124
- Replacingthekeyboardormouse 125
- Completingthepartsreplacement 126
- Obtainingdevicedrivers 127
- 116ThinkCentreM79UserGuide 128
- Informationresources 129
- LenovoThinkVantageTools 129
- HelpandSupport 129
- SafetyandWarranty 129
- LenovoWebsite 129
- LenovoSupportWebsite 130
- Helpandservice 130
- Callingforservice 130
- Usingotherservices 131
- Purchasingadditionalservices 131
- 120ThinkCentreM79UserGuide 132
- Exportclassificationnotice 133
- Electronicemissionsnotices 133
- Eurasiancompliancemark 135
- Brazilregulatorynotice 135
- Mexicoregulatorynotice 135
- 124ThinkCentreM79UserGuide 136
- ImportantWEEEinformation 137
- RecyclinginformationforJapan 137
- RecyclinginformationforBrazil 138
- 128ThinkCentreM79UserGuide 140
- EuropeanUnionRoHS 141
- ChinaRoHS 141
- TurkishRoHS 141
- UkraineRoHS 142
- IndiaRoHS 142
- 130ThinkCentreM79UserGuide 142
- AppendixD.ChinaEnergyLabel 143
- 132ThinkCentreM79UserGuide 144
- ©CopyrightLenovo2014 145
- 134ThinkCentreM79UserGuide 146
- AppendixF.Notices 147
- Trademarks 148
- 138ThinkCentreM79UserGuide 150
- 140ThinkCentreM79UserGuide 152
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