7.ToinstallthenewrightI/Oassemblyintothecomputer,positionthenewrightI/Oassemblyintoplace
andthenalignthescrewholeswiththecorrespondingholesinthecomputermainbracket.
8.InstallthethreescrewstosecuretherightI/Oassemblytothecomputermainbracket.
9.ConnecttherightI/OassemblycableandtheintrusionswitchcabletothenewrightI/Oassembly.
Whattodonext:
•Toworkwithanotherpieceofhardware,gototheappropriatesection.
•Tocompletetheinstallationorreplacement,goto“Completingthepartsreplacement”onpage52.
Replacingthepowersupply
Attention:
Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Importantsafetyinformation”
intheThinkCentreSafetyandWarrantyGuidethatcamewithyourcomputer.ToobtainacopyoftheThinkCentre
SafetyandWarrantyGuide,goto:
http://www.lenovo.com/support
Thissectionprovidesinstructionsonhowtoreplacethepowersupply.
CAUTION:
Neverremovethecoveronapowersupplyoranypartthathasthefollowinglabelattached.
Hazardousvoltage,current,andenergylevelsarepresentinsideanycomponentthathasthislabel
attached.Therearenoserviceablepartsinsidethesecomponents.Ifyoususpectaproblemwith
oneoftheseparts,contactaservicetechnician.
Toreplacethepowersupply,dothefollowing:
1.Removeallmediafromthedrivesandturnoffallattacheddevicesandthecomputer.Then,disconnect
allpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothecomputer.
2.Placeasoft,cleantowelorclothonthedeskorsurface.Holdthesidesofyourcomputerandgentlylay
itdownsothatthescreenisagainstthesurfaceandthecoverisfacingup.
3.Removethecomputercover.See“Removingthecomputercover”onpage15.
4.Disconnectthepowersupplycablefromthesystemboard.See“Systemboardpartandconnect or
locations”onpage12.
5.Removetheharddiskdrive.See“Replacingtheharddiskdrive”onpage25.
6.RemovetherearI/Oassemblycover.See“RemovingorreinstallingtherearI/Oassemblycover”
onpage19.
Chapter2.Installingorreplacinghardware47