Step11.Reinstallthecover(see“Replacingthecover”onpage120).
Step12.Slidetheserverintotherack.
Step13.Reconnectthepowercordsandanycablesthatyouremoved.
Step14.Turnontheperipheraldevicesandtheserver.
Thermalgrease
Thethermalgreasemustbereplacedwhenevertheheatsinkhasbeenremovedfromthetopofthe
microprocessorandisgoingtobereusedorwhendebrisisfoundinthegrease.
Whenyouareinstallingtheheatsinkonthesamemicroprocessorthatitwasremovedfrom,makesure
thatthefollowingrequirementsaremet:
•Thethermalgreaseontheheatsinkandmicroprocessorisnotcontaminated.
•Additionalthermalgreaseisnotaddedtotheexistingthermalgreaseontheheatsinkandmicroprocessor.
Notes:
•Readthesafetyinformationthatbeginson“Safety”onpagev
.
•Readthe“Installationguidelines”onpage116.
•Read“Handlingstatic-sensitivedevices”onpage118
.
Toreplacedamagedorcontaminatedthermalgreaseonthemicroprocessorandheatsink,completethe
followingsteps:
Step1.Placetheheatsinkonacleanworksurface.
Step2.Removethecleaningpadfromitspackageandunfolditcompletely.
Step3.Usethecleaningpadtowipethethermalgreasefromthebottomoftheheatsink.
Note:Makesurethatallofthethermalgreaseisremoved.
Step4.Useacleanareaofthecleaningpadtowipethethermalgreasefromthemicroprocessor;then,
disposeofthecleaningpadafterallofthethermalgreaseisremoved.
Step5.Usethethermal-greasesyringetoplacenineuniformlyspaceddotsof0.02mleachonthetopof
themicroprocessor.Theoutermostdotsmustbewithinapproximately5mmoftheedgeofthe
microprocessor;thisistoensureuniformdistributionofthegrease.
Microprocessor
0.02 mL of thermal
grease
Figure202.Thermalgreasedistribution
Note:Ifthegreaseisproperlyapplied,approximatelyhalfofthegreasewillremaininthesyringe.
Chapter5.Removingandreplacingcomponents267
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