6.Followthissequencetoremovethefourscrewsthatsecuretheheatsinkandfanassemblytothe
systemboard:
a.Partiallyremovescrew1,thenfullyremovescrew2,andthenfullyremovescrew1.
b.Partiallyremovescrew3,thenfullyremovescrew4,andthenfullyremovescrew3.
Note:Carefullyremovethefourscrewsfromthesystemboardtoavoidanypossibledamagetothe
systemboard.Thefourscrewscannotberemovedfromtheheatsinkandfanassembly.
Figure59.Removingtheheatsinkandfanassembly
7.Liftthefailingheatsinkandfanassemblyoffthesystemboard.
Notes:
a.Youmighthavetogentlytwisttheheatsinkandfanassemblytofreeitfromthemicroprocessor.
b.Whilehandlingtheheatsinkandfanassembly,donottouchthethermalgreaseonthebottomofit.
8.Placethenewheatsinkandfanassemblyonthesystemboardsothatthefourscrewsontheheatsink
andfanassemblyarealignedwiththecorrespondingholesonthesystemboard.Makesurethatyou
properlyplacetheheatsinkandfanassemblysothatyoucaneasilyconnecttheheatsinkandfan
assemblycabletothemicroprocessorfanconnectoronthesystemboard.
9.Followthissequencetoinstallthefourscrewstosecurethenewheatsinkandfanassembly.SeeFigure
59“Removingtheheatsinkandfanassembly”onpage78.
a.Partiallytightenscrew1,thenfullytightenscrew2,andthenfullytightenscrew1.
b.Partiallytightenscrew3,thenfullytightenscrew4,andthenfullytightenscrew3.
Note:Donotover-tightenthescrews.
10.Connecttheheatsinkandfanassemblycabletothemicroprocessorfanconnectoronthesystem
board.See“Locatingpartsonthesystemboard”onpage17.
Whattodonext:
•Toworkwithanotherpieceofhardware,gototheappropriatesection.
78ThinkServerTS140HardwareMaintenanceManual
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