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4.Laythecomputeronitssideandremovethefourscrewsattherearofthechassisthatsecurethe
powersupplyassembly.
Figure21.Removingthescrewsforthepowersupplyassembly
5.Slidethepowersupplyassemblytothefrontofthecomputerandthenliftitoutofthechassis.
6.Makesurethatthenewpowersupplyassemblyisthecorrectreplacement.Somepowersupply
assembliesautomaticallysensethevoltage,somepowersupplyassembliesarevoltagespecic,and
somepowersupplyassemblieshaveavoltage-selectionswitch.Ifyourpowersupplyassemblyhas
avoltage-selectionswitch,makesurethatyousetthevoltage-selectionswitchtomatchthevoltage
availableatyourelectricaloutlet.Ifnecessary,useaballpointpentoslidethevoltage-selectionswitch
tothecorrectposition.
•Ifthevoltagesupplyrangeinyourlocalcountryorregionis100–127Vac,setthevoltage-selection
switchto115V.
•Ifthevoltagesupplyrangeinyourlocalcountryorregionis200–240Vac,setthevoltage-selection
switchto230V.
7.Installthenewpowersupplyassemblyintothechassissothatthescrewholesinthepowersupply
assemblyalignwiththoseinthechassis.
8.Installandtightenthefourscrewstosecurethepowersupplyassembly.
Note:UseonlyscrewsprovidedbyLenovo.
9.Reconnectthepowersupplyassemblycablestothesystemboardandeachofthedrives.
10.Securethepowersupplyassemblycableswiththecableclipsandtiesinthechassis.
11.Tocompletetheinstallationorreplacement,goto“Completingthepartsreplacement”onpage95.
Replacingthemicroprocessor
Attention:
Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Importantsafetyinformation”
intheUserGuide.ToobtainacopyoftheUserGuide,goto:
http://www.lenovo.com/ThinkCentreUserGuides
Thissectionprovidesinstructionsonhowtoreplacethemicroprocessor.
Chapter9.ReplacingFRUs87
- HardwareMaintenanceManual 1
- FirstEdition(January2013) 2
- Contents 3
- Chapter10.Additionalservice 4
- AppendixA.Notices.........101 4
- Index.................103 4
- Chapter1.Aboutthismanual 5
- Chapter2.Safetyinformation 7
- Voltage-selectionswitch 9
- Safetyinspectionguide 9
- Groundingrequirements 10
- Chapter2.Safetyinformation7 11
- .Safetyinformation9 13
- Chapter2.Safetyinformation11 15
- .Safetyinformation13 17
- .Safetyinformation15 19
- Chapter2.Safetyinformation17 21
- ≥18kg≥32kg≥55kg 23
- .Safetyinformation21 25
- Chapter2.Safetyinformation25 29
- Chapter3.Generalinformation 33
- Lenovoprograms 34
- LenovoSupportWebsite 35
- Chapter4.Generalcheckout 37
- Basictroubleshooting 39
- Troubleshootingprocedure 40
- Troubleshooting 41
- Audioproblems 41
- NoaudioinWindows 42
- CDproblems 43
- DVDproblems 44
- Intermittentproblems 45
- Harddiskdriveproblems 45
- Monitorproblems 48
- Networkingproblems 49
- AwirelessLANproblem 51
- AwirelessWANproblem 51
- Optionproblems 52
- Performanceandlockupproblems 53
- Printerproblems 55
- Serialportproblems 55
- Softwareproblems 56
- USBproblems 57
- Diagnostics 57
- LenovoSolutionCenter 57
- Viewingandchangingsettings 59
- Usingpasswords 59
- Passwordconsiderations 60
- Power-OnPassword 60
- AdministratorPassword 60
- HardDiskPassword 60
- Enablingordisablingadevice 61
- Selectingastartupdevice 61
- EnablingErPcompliancemode 62
- ExitingtheSetupUtilityprogram 63
- Chapter7.Symptom-to-FRUindex 65
- POSTerrorcodes 66
- .Symptom-to-FRUindex63 67
- Miscellaneouserrormessages 68
- Undeterminedproblems 69
- Chapter8.Locations 71
- LocatingmajorFRUsandCRUs 72
- .Locations69 73
- LookingupFRUinformation 74
- Locatingpartsonthesystemboard 75
- Locatinginternaldrives 76
- Chapter9.ReplacingFRUs 77
- Removingthecomputercover 78
- Attention: 79
- Figure7.Removingthefrontbezel 79
- InstallingorreplacingaPCIcard 80
- .ReplacingFRUs77 81
- Figure10.RemovingaPCIcard 82
- Replacingthebattery 83
- Chapter9.ReplacingFRUs81 85
- Replacingtheopticaldrive 86
- .ReplacingFRUs83 87
- Chapter9.ReplacingFRUs85 89
- Replacingthemicroprocessor 91
- 2onthemicroprocessor 93
- Chapter9.ReplacingFRUs89 93
- Replacingthesystemboard 94
- Chapter9.ReplacingFRUs91 95
- .ReplacingFRUs93 97
- Completingthepartsreplacement 99
- ©CopyrightLenovo2013 101
- Powermanagement 104
- AutomaticPower-onfeatures 104
- AppendixA.Notices 105
- Televisionoutputnotice 106
- EuropeanconformanceCEmark 106
- Trademarks 106
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