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Actions:
•Themonitormightbeoperatinginalow-refreshratedisplaymode.Setthemonitortothehighest,
noninterlacedrefreshratesupportedbyyourmonitorandthevideocontrollerinyourcomputer.
Attention:Usingaresolutionorrefreshratethatisnotsupportedbyyourmonitormightdamageit.Check
thedocumentationthatcomeswithyourmonitortoverifythesupportedrefreshrates.
•Themonitormightbeaffectedbyinterferencefromnearbyequipment.Magneticeldsaroundother
devices,suchastransformers,appliances,uorescentlights,andothermonitorsmightbecausingthe
problem.Moveuorescentdesklightingoranyequipmentthatproducesmagneticeldsfartheraway
fromthemonitor.Ifthisdoesnotcorrecttheproblem,dothefollowing:
1.Turnoffthemonitor.(Movingacolormonitorwhileitisturnedonmightcausescreendiscoloration.)
2.Adjusttheplacementofthemonitorandotherdevicessothattheyareatleast305mm(12inches)
apart.
3.Turnonthemonitor.
•YoucanresettherefreshratethroughyouroperatingsystemControlPanel:
OntheWindows7operatingsystem,clickStart➙ControlPanel➙HardwareandSound➙Adjust
screenresolution➙AdvancedSettings.ThenclicktheMonitortabandselectanewrefreshrate.
OntheWindows8operatingsystem,openControlPanelandclickHardwareandSound➙Adjust
screenresolution➙AdvancedSettings.ThenclicktheMonitortabandselectanewrefreshrate.
•Seeyouroperatingsystemdocumentationorhelpforfurtherinformationonmonitorsettings.
Iftheseactionsdonotcorrecttheproblem,yourmonitormightneedservice.SeeChapter11“Getting
information,help,andservice”onpage119
fordetails.
Theimageisdiscolored
Symptom:Theimageisdiscolored.
Action:Themonitormightbeaffectedbyinterferencefromnearbyequipment.Magneticeldsaroundother
devices,suchastransformers,appliances,uorescentlights,andothermonitorsmightbecausingthe
problem.Moveuorescentdesklightingoranyequipmentthatproducesmagneticeldsfurtherawayfrom
themonitor.Ifthisdoesnotcorrecttheproblem,dothefollowing:
1.Turnoffthemonitor.(Movingacolormonitorwhileitisturnedonmightcausescreendiscoloration.)
2.Adjusttheplacementofthemonitorandotherdevicessothattheyareatleast305mm(12inches)apart.
3.Turnonthemonitor.
Iftheseactionsdonotcorrecttheproblem,yourmonitormightneedservice.SeeChapter11“Getting
information,help,andservice”onpage119
fordetails.
Networkingproblems
Thefollowingarethemostcommonnetworkingproblems.Selectyournetworkingproblemfromthe
followinglist:
•“Ethernetproblems”onpage111
•“AwirelessLANproblem”onpage112
•“AwirelessWANproblem”onpage112
•“Bluetoothproblem”onpage113
Formoreinformation,see“HelpandSupport”onpage119.
110ThinkCentreUserGuide
- ThinkCentre 1
- UserGuide 1
- ThirdEdition(September2012) 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 16
- Lenovoprograms 17
- Chapter1.Productoverview7 19
- Locations 20
- .Productoverview9 21
- 10ThinkCentreUserGuide 22
- .Productoverview11 23
- Locatingcomponents 24
- Locatingpartsonthesystemboard 25
- Locatinginternaldrives 26
- Machinetypeandmodellabel 27
- 16ThinkCentreUserGuide 28
- Chapter2.Usingyourcomputer 29
- Usingthekeyboard 30
- UsingWindowsshortcutkeys 30
- Usingangerprintreader 30
- Usingthewheelmouse 31
- Adjustingaudio 31
- Aboutyourcomputeraudio 31
- UsingCDsandDVDs 32
- PlayingaCDorDVD 33
- RecordingaCDorDVD 33
- 22ThinkCentreUserGuide 34
- Chapter3.Youandyourcomputer 35
- Glareandlighting 36
- Aircirculation 36
- Registeringyourcomputer 37
- Voltage-selectionswitch 37
- Replacementpowercords 38
- Chapter4.Security 39
- BIOSpasswords 40
- Windowspasswords 41
- Conguringthengerprintreader 41
- Usingandunderstandingrewalls 41
- Protectingdataagainstviruses 41
- 30ThinkCentreUserGuide 42
- Installingorreplacinghardware 43
- Installingexternaloptions 43
- Openingthecomputercover 44
- Figure9.Removingthefrontbezel 45
- Attention: 46
- 36ThinkCentreUserGuide 48
- InstallingorreplacingaPCIcard 49
- Figure14.RemovingaPCIcard 50
- Installingthecardreader 51
- Replacingthecardreader 54
- Replacingthebattery 56
- Installingthesolid-statedrive 57
- Replacingtheharddiskdrive 59
- 1,pin2,pin4,andpin 60
- Replacingtheopticaldrive 61
- 50ThinkCentreUserGuide 62
- 1,2and3onthesystemboard 70
- Replacingthemicroprocessor 72
- Replacingtheinternalspeaker 76
- Replacingthethermalsensor 78
- 1inthechassis.Thenalign 80
- 1and2inthechassis 80
- ReplacingtheWiFiunits 82
- RemovingtheWiFicardmodule 83
- InstallingtheWiFiunits 84
- InstallingtherearWiFiantenna 86
- RemovingtherearWiFiantenna 87
- InstallingthefrontWiFiantenna 88
- RemovingthefrontWiFiantenna 90
- Replacingthekeyboardormouse 91
- Completingthepartsreplacement 91
- Obtainingdevicedrivers 92
- Chapter6.Recoveryinformation 93
- Creatingrecoverymedia 94
- Usingrecoverymedia 94
- Performingabackupoperation 94
- Performingarecoveryoperation 95
- Creatingandusingarescuemedium 96
- Reinstallingsoftwareprograms 98
- Reinstallingdevicedrivers 98
- Solvingrecoveryproblems 98
- 88ThinkCentreUserGuide 100
- Viewingandchangingsettings 101
- Usingpasswords 101
- AdministratorPassword 102
- HardDiskPassword 102
- Passwordconsiderations 102
- Power-OnPassword 102
- Enablingordisablingadevice 103
- Selectingastartupdevice 104
- EnablingErPcompliancemode 104
- ICEperformancemode 105
- ICEthermalalert 105
- ExitingtheSetupUtilityprogram 106
- Usingsystemprograms 107
- ThinkCentreUserGuide 108
- Chapter9.Preventingproblems 109
- UsingSystemUpdate 110
- Cleaningyourcomputer 111
- Goodmaintenancepractices 112
- Movingyourcomputer 112
- Basictroubleshooting 113
- Troubleshootingprocedure 114
- Troubleshooting 114
- Audioproblems 115
- CDproblems 116
- DVDproblems 117
- DVDmoviewillnotplay 118
- Playbackisverysloworchoppy 118
- Intermittentproblems 119
- Monitorproblems 121
- Networkingproblems 122
- Ethernetproblems 123
- AwirelessLANproblem 124
- AwirelessWANproblem 124
- Optionproblems 125
- Performanceandlockupproblems 126
- Printerproblems 127
- Serialportproblems 128
- Softwareproblems 128
- USBproblems 129
- LenovoSolutionCenter 130
- ©CopyrightLenovo2012 131
- LenovoSupportWebsite 132
- Helpandservice 132
- Callingforservice 132
- Usingotherservices 133
- Purchasingadditionalservices 133
- 122ThinkCentreUserGuide 134
- AppendixA.Notices 135
- Trademarks 136
- Exportclassicationnotice 137
- Electronicemissionsnotices 137
- 128ThinkCentreUserGuide 140
- ImportantWEEEinformation 141
- Recyclinginformation 141
- RecyclinginformationforBrazil 142
- 132ThinkCentreUserGuide 144
- ChinaRoHS 145
- TurkishRoHS 145
- UkraineRoHS 145
- IndiaRoHS 146
- 136ThinkCentreUserGuide 148
- 138ThinkCentreUserGuide 150
- 140ThinkCentreUserGuide 152
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