Lenovo ThinkCentre Edge 72z - Removing and Reinstalling the System Board Shield

6.TurntherearI/Oassemblyupsidedown,andthenremovethetwoscrewsthatsecurethepowercord
connectortothepowercordconnectorbracket.RemovetherearI/Oassemblyfromthecomputer.
Figure23.Removingthepowercordconnector
7.ToreinstalltherearI/Oassembly,reinstallthetwoscrewsthatsecurethepowercordconnectortothe
powercordconnectorbracket.PositionthenewrearI/Oassemblyintoplace,andthenalignthe
screwholeswiththecorrespondingholesinthecomputermainbracket.Installthetwoscrewsto
securetherearI/Oassembly.
8.Goto“Completingthepartsreplacement”onpage124.
Removingandreinstallingthesystemboardshield
Attention
Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Importantsafety
information”intheSafety,Warranty,andSetupGuidethatcamewithyourcomputer.Toobtainacopyofthe
Safety,Warranty,andSetupGuide,goto:
http://www.lenovo.com/support
Thissectionprovidesinstructionsonhowtoremoveandreinstallthesystemboardshield.
Toremoveandreinstallthesystemboardshield,dothefollowing:
1.Removeallmediafromthedrivesandturnoffallattacheddevicesandthecomputer.Then,disconnect
allpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothecomputer.
2.Placeasoft,cleantowelorclothonthedeskorotheratsurface.Holdthesidesofyourcomputerand
gentlylayitdownsothatthescreenisagainstthesurfaceandthecoverisfacingup.
3.Removethecomputercover.See“Removingthecomputercover”onpage94.
4.Locatethesystemboardshieldinthecomputer.See“LocatingmajorFRUsandCRUs”onpage82.
Chapter9.ReplacingFRUs101