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8.Installthenewpowersupplyassemblyintothechassissothatthescrewholesinthenewpowersupply

assemblyarealignedwiththecorrespondingholesintherearofthechassis.Then,installthethree

screwstosecurethenewpowersupplyassemblyinplace.

Note:UseonlyscrewsprovidedbyLenovo.

Figure43.Installingthepowersupplyassembly

9.Connectthenewpowersupplyassemblycablestoalldrivesandthesystemboard.See“Locating

partsonthesystemboard”onpage13.

64ThinkCentreM73UserGuide

1 2 ... 71 72 73 74 75 76 77 78 79 80 81 ... 157 158

ThinkCentreM73 1
UserGuide 1
ThirdEdition(June2014) 2
Contents 3
Importantsafetyinformation 7
Powercordsandpoweradapters 8
Plugsandoutlets 9
Externaldevices 9
Heatandproductventilation 9
Operatingenvironment 10
Lasercompliancestatement 10
Powersupplystatement 11
Cleaningandmaintenance 11
Chapter1.Productoverview 13
Chapter1.Productoverview3 15
Speciﬁcations 17
Lenovoprograms 17
Chapter1.Productoverview7 19
Locations 21
10ThinkCentreM73UserGuide 22
.Productoverview11 23
Locatingcomponents 24
Locatingpartsonthesystemboard 25
Locatinginternaldrives 26
Machinetypeandmodellabel 27
16ThinkCentreM73UserGuide 28
Chapter2.Usingyourcomputer 29
NavigatingonWindows8 30
NavigatingonWindows8.1 31
Usingthekeyboard 33
UsingWindowsshortcutkeys 33
Usingaﬁngerprintreader 33
Usingthewheelmouse 34
Adjustingaudio 34
Aboutyourcomputeraudio 34
UsingCDsandDVDs 35
PlayingaCDorDVD 36
RecordingaCDorDVD 36
Chapter2.Usingyourcomputer25 37
26ThinkCentreM73UserGuide 38
Chapter3.Youandyourcomputer 39
Glareandlighting 40
Aircirculation 40
Accessibilityinformation 40
Chapter3.Youandyourcomputer29 41
Chapter3.Youandyourcomputer31 43
Registeringyourcomputer 44
Chapter4.Security 45
Lockingthecomputercover 46
BIOSpasswords 47
Windowspasswords 48
Conﬁguringtheﬁngerprintreader 48
Usingandunderstandingﬁrewalls 48
Protectingdataagainstviruses 48
.Security37 49
38ThinkCentreM73UserGuide 50
Installingorreplacinghardware 51
Installingexternaloptions 51
Removingthecomputercover 52
Attention: 54
44ThinkCentreM73UserGuide 56
1asshownto 58
Replacingthebattery 59
Replacingtheharddiskdrive 60
Replacingthesolid-statedrive 62
56ThinkCentreM73UserGuide 68
Replacingthemicroprocessor 77
Replacingthesystemfanassembly 80
ReplacingtheWiFiunits 82
RemovingtheWiFiadaptercard 83
RemovingtheWiFicardmodule 84
InstallingtheWiFiunits 85
74ThinkCentreM73UserGuide 86
InstallingtherearWiFiantenna 87
RemovingtherearWiFiantenna 88
InstallingthefrontWiFiantenna 89
RemovingthefrontWiFiantenna 90
Replacingthekeyboard 91
Replacingthemouse 92
Completingthepartsreplacement 93
Obtainingdevicedrivers 94
Chapter6.Recoveryinformation 95
Creatingrecoverymedia 96
Usingrecoverymedia 96
Performingabackupoperation 96
Performingarecoveryoperation 97
Creatingandusingarescuemedium 98
Reinstallingsoftwareprograms 100
Reinstallingdevicedrivers 100
Solvingrecoveryproblems 100
Refreshingyourcomputer 101
ThinkCentreM73UserGuide 102
Viewingandchangingsettings 103
Usingpasswords 103
Passwordconsiderations 104
Power-OnPassword 104
AdministratorPassword 104
HardDiskPassword 104
Enablingordisablingadevice 105
Selectingastartupdevice 106
EnablingErPLPScompliancemode 106
ICEperformancemode 107
ICEthermalalert 107
Usingsystemprograms 109
Chapter9.Preventingproblems 111
UsingSystemUpdate 112
Cleaningyourcomputer 113
Goodmaintenancepractices 114
Movingyourcomputer 114
Basictroubleshooting 115
Troubleshootingprocedure 116
Troubleshooting 116
Audioproblems 117
CDproblems 118
DVDproblems 119
DVDmoviewillnotplay 120
Playbackisverysloworchoppy 120
Intermittentproblems 121
Monitorproblems 123
Networkingproblems 124
Ethernetproblems 125
AwirelessLANproblem 126
Optionproblems 127
Performanceandlockupproblems 128
Printerproblems 130
Serialportproblems 130
Softwareproblems 131
USBproblems 132
LenovoSolutionCenter 132
Informationresources 133
LenovoThinkVantageT ools 133
HelpandSupport 133
SafetyandWarranty 133
LenovoWebsite 133
LenovoSupportWebsite 134
Helpandservice 134
Callingforservice 134
Usingotherservices 135
Purchasingadditionalservices 135
124ThinkCentreM73UserGuide 136
AppendixA.Notices 137
Trademarks 138
Exportclassiﬁcationnotice 139
Televisionoutputnotice 139
Electronicemissionsnotices 139
Eurasiancompliancemark 141
Brazilregulatorynotice 141
Mexicoregulatorynotice 141
ImportantWEEEinformation 143
RecyclinginformationforJapan 143
RecyclinginformationforBrazil 144
134ThinkCentreM73UserGuide 146
EuropeanUnionRoHS 147
ChinaRoHS 147
TurkishRoHS 147
UkraineRoHS 148
IndiaRoHS 148
AppendixE.ChinaEnergyLabel 149
138ThinkCentreM73UserGuide 150
140ThinkCentreM73UserGuide 152
142ThinkCentreM73UserGuide 154
144ThinkCentreM73UserGuide 156

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