Toreplacedamagedorcontaminatedthermalgreaseonthemicroprocessorandheatsink,completethe
followingsteps.
Step1.Placetheheatsinkonacleanworksurface.
Step2.Removethecleaningpadfromitspackageandunfolditcompletely.
Step3.Usethecleaningpadtowipethethermalgreasefromthebottomoftheheatsink.
Note:Makesurethatallofthethermalgreaseisremoved.
Step4.Useacleanareaofthecleaningpadtowipethethermalgreasefromthemicroprocessor;then,
disposeofthecleaningpadafterallofthethermalgreaseisremoved.
Microprocessor
0.02 mL of thermal
grease
Figure83.9uniformlyspaceddotsonthetopofthemicroprocessor
Step5.Usethethermal-greasesyringetoplace9uniformlyspaceddotsof0.02mLeachonthetopof
themicroprocessor.Theoutermostdotsmustbewithinapproximately5mmoftheedgeofthe
microprocessor.Thisistoensureuniformdistributionofthegrease.
Figure84.Thermal-greasesyringe
Note:0.01mLisonetickmarkonthesyringe.Ifthegreaseisproperlyapplied,approximatelyhalf
(0.22mL)ofthegreasewillremaininthesyringe.
Step6.Installtheheatsinkontothemicroprocessorasdescribedin“Installingamicroprocessorand
heatsink”onpage276
.
Installingahot-swappowersupply
Usethisinformationtoinstallahot-swappowersupply.
Thefollowingnotesdescribethetypeofacpowersupplythattheserversupportsandotherinformationthat
youmustconsiderwhenyouinstallapowersupply:
•Makesurethatthedevicesthatyouareinstallingaresupported.Foralistofsupportedoptionaldevices
fortheserver,seehttp://www.lenovo.com/serverproven/.
•Beforeyouinstallanadditionalpowersupplyorreplaceapowersupplywithoneof
adifferentwattage,youmayusethePowerConfiguratorutilitytodeterminecurrent
Chapter2.Installingoptionaldevices93