Lenovo ThinkServer TD350 Manuale Utente Pagina 169

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5.Removethefourscrewsthatsecuretheheatsinktothesystemboard.Itisrecommendedthatyou
carefullyremovethefourscrewsusingthefollowingmethodtoavoidanypossibledamagetothe
systemboard.
a.Partiallyremovescrew1,thencompletelyremovescrew3,andthenreturntoscrew1and
completelyremoveit.
b.Partiallyremovescrew2,thencompletelyremovescrew4,andthenreturntoscrew2and
completelyremoveit.
Note:Thefourscrewsareintegratedpartsoftheheatsink.Donottrytoremovethefourscrews
fromtheheatsink.
Figure120.Removingthescrewsthatsecuretheheatsink
6.Gentlytwisttheheatsinktofreeitfromthemicroprocessorandthenlifttheheatsinkoffthesystem
board.
7.Layasidetheoldheatsink.Touchthestatic-protectivepackagethatcontainsthenewheatsinktoany
unpaintedsurfaceontheoutsideoftheserver.Then,removethenewheatsinkfromthepackageand
removetheprotectivecoverfromtheheatsink.
Notes:
Whenhandlingtheheatsink,donottouchthethermalgreaseonthebottomofit.
Beforeinstallingthenewheatsink,usethecleaningpadthatcomeswiththenewheatsinktowipe
thethermalgreasefromthetopofthemicroprocessor.Disposeofthecleaningpadafterallofthe
thermalgreaseisremovedfromthemicroprocessor.
8.Placethenewheatsinkonthesystemboardsothatthefourscrewsonthenewheatsinkarealigned
withthecorrespondingmountingstudsonthesystemboard.Notetheorientationofthenewheatsink.
Ensurethatthearrowonthenewheatsinkpointstotherearoftheserver.See“Servercomponents”
onpage25
.
Chapter6.Replacinghardware155
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