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6.Removethefourscrewsthatsecuretheheatsinkandfanassemblytothesystemboard.Itis
recommendedthatyoucarefullyremovethefourscrewsfromthesystemboardusingthefollowing
methodtoavoidanypossibledamagetothesystemboard.
a.Partiallyremovescrew1,thencompletelyremovescrew2,andthenreturntoscrew1and
completelyremoveit.
b.Partiallyremovescrew3,thencompletelyremovescrew4,andthenreturntoscrew3and
completelyremoveit.
Note:Thefourscrewsareintegratedpartsoftheheatsinkandfanassembly.Donottrytoremovethe
fourscrewsfromtheheatsinkandfanassembly.
Figure105.Removingthescrewsthatsecuretheheatsinkandfanassembly
7.Gentlytwisttheheatsinkandfanassemblytofreeitfromthemicroprocessor,andthenlifttheheatsink
andfanassemblyoffthesystemboard.
8.Layasidetheoldheatsinkandfanassembly.Touchthestatic-protectivepackagethatcontainsthenew
heatsinkandfanassemblytoanyunpaintedsurfaceontheoutsideoftheserver.Then,removethenew
heatsinkandfanassemblyfromthepackage.
Notes:
Whenhandlingtheheatsinkandfanassembly,donottouchthethermalgreaseonthebottomofit.
Beforeinstallingthenewheatsinkandfanassembly,usethecleaningpadthatcomeswiththenew
heatsinkandfanassemblytowipethethermalgreasefromthetopofthemicroprocessor.Dispose
ofthecleaningpadafterallthermalgreaseisremovedfromthemicroprocessor.
9.Placethenewheatsinkandfanassemblyonthesystemboardsothateachofthefourscrewsonthe
newheatsinkandfanassemblyisinsertedintothecorrespondingmountingstudonthebackplane.
Notetheorientationofthenewheatsinkandfanassemblyandensurethatyouproperlyplaceitsothat
youcaneasilyconnecttheheatsinkandfanassemblycabletothemicroprocessorfanconnectoron
thesystemboard.See“Systemboardcomponents”onpage38
.
150ThinkServerTS440UserGuide
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