
10.Goto“Completingthepartsreplacement”onpage57.
Replacingtheheatsinkandfanassembly
Attention
DonotopenyourserverorattemptanyrepairbeforereadingandunderstandingtheChapter1“Aboutthis
manual”onpage1
andtheSafetyInformationbook.ToobtainacopyoftheSafetyInformationbook,
goto:http://www.lenovo.com/support
Thissectionprovidesinstructionsonhowtoreplacetheheatsinkandfanassembly.
CAUTION:
Theheatsinkandfanassemblymightbeveryhot.Turnofftheserverandwaitthreeto
veminutestolettheservercoolbeforeremovingtheservercover.
Toreplacetheheatsinkandfanassembly,dothefollowing:
1.Removeallmediafromthedrivesandturnoffallattacheddevicesandtheserver.Then,disconnectall
powercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtotheserver.
2.Removetheservercover.See“Removingtheservercover”onpage30.
3.Laytheserveronitssideforeasieraccesstothesystemboard.
4.Locatetheheatsinkandfanassembly.See“System-boardinternalconnectors”onpage25.
5.Disconnecttheheatsinkandfanassemblycablefromthemicroprocessorfanconnectoronthesystem
board.See“System-boardinternalconnectors”onpage25.
6.Followthissequencetoremovethefourscrewsthatsecuretheheatsinkandfanassemblytothe
systemboard:
a.Partiallyremovescrew1,thenfullyremovescrew2,andthenfullyremovescrew1.
b.Partiallyremovescrew3,thenfullyremovescrew4,andthenfullyremovescrew3.
Note:Carefullyremovethefourscrewsfromthesystemboardtoavoidanypossibledamagetothe
systemboard.Thefourscrewscannotberemovedfromtheheatsinkandfanassembly.
44ThinkServerHardwareMaintenanceManual
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