User's Manual

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6.Removethefourscrewsthatsecuretheheatsinkandfanassemblytothesystemboard.Itis
recommendedthatyoucarefullyremovethefourscrewsfromthesystemboardusingthefollowing
methodtoavoidanypossibledamagetothesystemboard.
a.Partiallyremovescrew1,thencompletelyremovescrew3,andthenreturntoscrew1and
completelyremoveit.
b.Partiallyremovescrew2,thencompletelyremovescrew4,andthenreturntoscrew2and
completelyremoveit.
Note:Thefourscrewsareintegratedpartsoftheheatsinkandfanassembly.Donottrytoremovethe
fourscrewsfromtheheatsinkandfanassembly.
Figure90.Removingthescrewsthatsecuretheheatsinkandfanassembly
7.Gentlytwisttheheatsinkandfanassemblytofreeitfromthemicroprocessorandthenlifttheheatsink
andfanassemblyoffthesystemboard.
8.Layasidetheoldheatsinkandfanassembly.Touchthestatic-protectivepackagethatcontainsthenew
heatsinkandfanassemblytoanyunpaintedsurfaceontheoutsideoftheserver.Then,removethenew
heatsinkandfanassemblyfromthepackage.
Note:Whenhandlingtheheatsinkandfanassembly,donottouchthethermalgreaseonthebottomof
it.
9.Placethenewheatsinkandfanassemblyonthesystemboardsothatthefourscrewsonthenewheat
sinkandfanassemblyarealignedwiththecorrespondingmountingstudsonthesystemboard.Note
theorientationofthenewheatsinkandfanassemblyandmakesurethatyouproperlyplaceitsothat
youcaneasilyconnecttheheatsinkandfanassemblycabletothemicroprocessorfanconnectoron
thesystemboard.See“Systemboardcomponents”onpage42
.
156ThinkServerUserGuide