Lenovo ThinkCentre Edge 72z - Replacing the Heat Sink Assembly

1.Removeallmediafromthedrivesandturnoffallattacheddevicesandthecomputer.Then,disconnect
allpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothecomputer.
2.Placeasoft,cleantowelorclothonthedeskorotheratsurface.Holdthesidesofyourcomputerand
gentlylayitdownsothatthescreenisagainstthesurfaceandthecoverisfacingup.
3.Removethecomputercover.See“Removingthecomputercover”onpage94.
4.Locatethemicroprocessorfaninthecomputer.See“LocatingmajorFRUsandCRUs”onpage82.
5.Removethemicroprocessorboardshield.See“Removingandreinstallingthesystemboardshield”on
page101.
6.Notetheroutingofthemicroprocessorfancable,andthendisconnectthemicroprocessorfancable
fromthesystemboard.See“Locatingpartsonthesystemboard”onpage86.
7.Removethetwoscrews1thatsecurethemicroprocessorfantothemainbracket.Then,liftthe
microprocessorfanoffthemainbracket.
Figure26.Removingthemicroprocessorfan
8.Toreinstallthemicroprocessorfan,positionthenewmicroprocessorfanonthemainbracketandalign
thescrewholesinthenewmicroprocessorfanwiththoseinthemainbracket.Reinstallthetwoscrews
thatsecurethemicroprocessorfantothemainbracket.
9.Connectthenewmicroprocessorfancabletothesystemboard.See“Locatingpartsonthesystem
board”onpage86.
10.Reinstallthesystemboardshield.See“Removingandreinstallingthesystemboardshield”onpage101.
11.Reinstallthecomputercover.See“Removingthecomputercover”onpage94.
12.Goto“Completingthepartsreplacement”onpage124.
Replacingtheheatsinkassembly
Attention
Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Importantsafety
information”intheSafety,Warranty,andSetupGuidethatcamewithyourcomputer.Toobtainacopyofthe
104ThinkCentreEdgeHardwareMaintenanceManual