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Action:Thenetworkdriverlesmaybecorruptormissing.Updatethedriverbyreferringtothe“Solution”
descriptionfortheproceduretomakesurethatthecorrectdevicedriverisinstalled.
TheWakeonLANfeatureisnotworking
Symptom:TheWakeonLAN(WOL)featureisnotworking.
Actions:
•MakesurethatWOLisenabledintheBIOSSetupUtilityprogram.
•Ifitis,checkwithyourLANadministratorforthenecessarysettings.
IfyourcomputerisaGigabitEthernetmodelandyouuseaspeedof1000Mbps,theconnection
failsorerrorsoccur
Symptom:IfyourcomputerisaGigabitEthernetmodelandyouuseaspeedof1000Mbps,theconnection
failsorerrorsoccur.
Actions:
•UseCategory5wiringandmakesurethatthenetworkcableissecurelyconnected.
•Connecttoa1000BASE-Thub/switch(not1000BASE-X).
IfyourcomputerisaGigabitEthernetmodel,itcannotconnecttothenetworkat1000Mbps.Instead,
itconnectsat100Mbps
Symptom:IfyourcomputerisaGigabitEthernetmodel,itcannotconnecttothenetworkat1000Mbps.
Instead,itconnectsat100Mbps.
Actions:
•Tryanothercable.
•Makesurethatthelinkpartnerissettoauto-negotiate.
•Makesurethattheswitchis802.3ab-compliant(gigabitovercopper).
AwirelessLANproblem
Symptom:Youcannotconnectusingthebuilt-inwirelessnetworkingcard.
Actions:
•MakesurethatyourwirelessLANdriveristhelatestversion.ChecktheWebsiteandverifythedriver
versionsupportedbyAccessConnectionsisthelatestdocumentedinthereadmele.
•Makesurethatyourcomputeriswithinrangeofawirelessaccesspoint.
•Makesurethatthewirelessradioisenabledbydouble-clickingtheAccessConnectionsiconinthe
Windowsnoticationarea.
•CheckNetworkName(SSID),andyourencryptioninformation.UseAccessConnectionstoverifythis
case-sensitiveinformation.
AwirelessWANproblem
Message:UnauthorizedWANcardispluggedin-PoweroffandremovetheWANcard.
Action:TheWANcardisnotsupportedonthiscomputer.Removeit.
Note:SomecomputermodelsdonothaveawirelessWAN.
108ThinkCentreUserGuide
- ThinkCentre 1
- UserGuide 1
- FourthEdition(September2012) 2
- Contents 3
- Importantsafetyinformation 7
- Powercordsandpoweradapters 8
- Plugsandoutlets 9
- Externaldevices 9
- Generalbatterynotice 9
- Rechargeablebatterynotice 10
- Heatandproductventilation 10
- Operatingenvironment 11
- Modemsafetyinformation 11
- Lasercompliancestatement 12
- Powersupplystatement 12
- Chapter1.Productoverview 15
- Chapter1.Productoverview3 17
- Specications 18
- Lenovoprograms 18
- Chapter1.Productoverview5 19
- Chapter1.Productoverview7 21
- Locations 22
- .Productoverview9 23
- 10ThinkCentreUserGuide 24
- .Productoverview11 25
- Locatingcomponents 26
- Locatingpartsonthesystemboard 27
- Machinetypeandmodellabel 28
- Chapter2.Usingyourcomputer 29
- Usingthekeyboard 30
- UsingWindowsshortcutkeys 30
- Usingangerprintreader 30
- Usingthewheelmouse 31
- Adjustingaudio 31
- Aboutyourcomputeraudio 31
- UsingCDsandDVDs 32
- PlayingaCDorDVD 33
- RecordingaCDorDVD 33
- 20ThinkCentreUserGuide 34
- Chapter3.Youandyourcomputer 35
- Glareandlighting 36
- Aircirculation 36
- Voltage-selectionswitch 37
- Replacementpowercords 38
- Chapter4.Security 39
- Usingpasswords 40
- BIOSpasswords 40
- Windowspasswords 41
- Conguringthengerprintreader 41
- Usingandunderstandingrewalls 41
- Protectingdataagainstviruses 41
- 28ThinkCentreUserGuide 42
- Installingorreplacinghardware 43
- Installingexternaloptions 43
- Attention: 44
- 32ThinkCentreUserGuide 46
- Removingthecomputercover 47
- Replacingtheopticaldrive 51
- 38ThinkCentreUserGuide 52
- 40ThinkCentreUserGuide 54
- 44ThinkCentreUserGuide 58
- 46ThinkCentreUserGuide 60
- Replacingthebattery 62
- Replacingtheacpoweradapter 63
- 50ThinkCentreUserGuide 64
- Replacingthepowerswitchboard 67
- 54ThinkCentreUserGuide 68
- Replacingtheheatsink 69
- Figure45.Removingtheheatsink 70
- Replacingthemicroprocessor 72
- 2onthemicroprocessor 73
- 62ThinkCentreUserGuide 76
- ReplacingtheWiFicardmodule 78
- InstallingtherearWiFiantenna 80
- RemovingtherearWiFiantenna 81
- Replacingthesystemfan 83
- 70ThinkCentreUserGuide 84
- Replacingtheinternalspeaker 85
- 72ThinkCentreUserGuide 86
- Replacingthekeyboardormouse 87
- Completingthepartsreplacement 88
- Obtainingdevicedrivers 90
- Chapter6.Recoveryinformation 91
- Creatingrecoverymedia 92
- Usingrecoverymedia 92
- Performingabackupoperation 92
- Performingarecoveryoperation 93
- Creatingandusingarescuemedium 94
- Reinstallingsoftwareprograms 96
- Reinstallingdevicedrivers 96
- Solvingrecoveryproblems 96
- 84ThinkCentreUserGuide 98
- Viewingandchangingsettings 99
- Passwordconsiderations 100
- Power-OnPassword 100
- AdministratorPassword 100
- HardDiskPassword 100
- Enablingordisablingadevice 101
- Selectingastartupdevice 102
- EnablingErPcompliancemode 102
- ICEperformancemode 103
- ICEthermalalert 103
- ExitingtheSetupUtilityprogram 104
- Usingsystemprograms 105
- ThinkCentreUserGuide 106
- Chapter9.Preventingproblems 107
- UsingSystemUpdate 108
- Cleaningandmaintenance 108
- Cleaningyourcomputer 109
- Goodmaintenancepractices 110
- Movingyourcomputer 110
- Basictroubleshooting 111
- Troubleshootingprocedure 112
- Troubleshooting 112
- Audioproblems 113
- CDproblems 114
- DVDproblems 115
- DVDmoviewillnotplay 116
- Playbackisverysloworchoppy 116
- Intermittentproblems 117
- Monitorproblems 119
- Networkingproblems 120
- Ethernetproblems 121
- AwirelessLANproblem 122
- AwirelessWANproblem 122
- Optionproblems 123
- Performanceandlockupproblems 124
- Printerproblems 125
- Serialportproblems 126
- Softwareproblems 126
- USBproblems 127
- LenovoSolutionCenter 128
- ©CopyrightLenovo2012 129
- LenovoSupportWebsite 130
- Helpandservice 130
- Callingforservice 130
- Usingotherservices 131
- Purchasingadditionalservices 131
- 118ThinkCentreUserGuide 132
- AppendixA.Notices 133
- Trademarks 134
- Exportclassicationnotice 135
- Electronicemissionsnotices 135
- 124ThinkCentreUserGuide 138
- ImportantWEEEinformation 139
- Recyclinginformation 139
- RecyclinginformationforBrazil 140
- 128ThinkCentreUserGuide 142
- ChinaRoHS 143
- TurkishRoHS 143
- UkraineRoHS 143
- IndiaRoHS 144
- 132ThinkCentreUserGuide 146
- 134ThinkCentreUserGuide 148
- 136ThinkCentreUserGuide 150
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