Lenovo ThinkCentre Edge - Replacing the Heat Sink Assembly

1.Removeallmediafromthedrivesandturnoffallattacheddevicesandthecomputer.Then,disconnect
allpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothecomputer.
2.Placeasoft,cleantowelorclothonthedeskorotheratsurface.Holdthesidesofyourcomputerand
gentlylayitdownsothatthescreenisagainstthesurfaceandthecoverisfacingup.
3.Removethecomputercover.See“Removingthecomputercover”onpage95.
4.Locatethemicroprocessorfaninthecomputer.See“FRUlocations”onpage86.
5.Removethemicroprocessorboardshield.See“Removingandreinstallingthesystemboardshield”on
page102.
6.Notetheroutingofthemicroprocessorfancable,andthendisconnectthemicroprocessorfancable
fromthesystemboard.See“Systemboardpartsandconnectors”onpage88.
7.Removethetwoscrews1thatsecurethemicroprocessorfantothemainbracket.Then,liftthe
microprocessorfanoffthemainbracket.
Figure26.Removingthemicroprocessorfan
8.Toreinstallthemicroprocessorfan,positionthenewmicroprocessorfanonthemainbracketandalign
thescrewholesinthenewmicroprocessorfanwiththoseinthemainbracket.Reinstallthetwoscrews
thatsecurethemicroprocessorfantothemainbracket.
9.Connectthenewmicroprocessorfancabletothesystemboard.See“Systemboardpartsand
connectors”onpage88.
10.Reinstallthesystemboardshield.See“Removingandreinstallingthesystemboardshield”onpage102.
11.Reinstallthecomputercover.See“Removingthecomputercover”onpage95.
12.Goto“Completingthepartsreplacement”onpage125.
Replacingtheheatsinkassembly
Attention
Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Importantsafety
information”intheThinkCentreEdgeSafetyandWarrantyGuidethatcamewithyourcomputer.Toobtaina
Chapter8.ReplacingFRUs105