Step5.Usethethermal-greasesyringetoplacenineuniformlyspaceddotsof0.02mleachonthetopof
themicroprocessor.Theoutermostdotsmustbewithinapproximately5mmoftheedgeofthe
microprocessor;thisistoensureuniformdistributionofthegrease.
Microprocessor
0.02 mL of thermal
grease
Figure209.Thermalgreasedistribution
Note:Ifthegreaseisproperlyapplied,approximatelyhalfofthegreasewillremaininthesyringe.
Figure210.Syringe
Step6.Installtheheatsinkontothemicroprocessor.
Forservicetechnicianonly:removingthesystemboard
Usethisinformationtoremovethesystemboard.
Notes:
•Whenyoureplacethesystemboard,youmusteitherupdatetheserverwiththelatestfirmwareorrestore
thepre-existingfirmwarethatthecustomerprovidesonadisketteorCDimage.Makesurethatyouhave
thelatestfirmwareoracopyofthepre-existingfirmwarebeforeyouproceed.
•Whenyoureplacethesystemboard,makesurethatyouremovetheIntegratedManagementModule
AdvancedUpgradeandplaceitonthenewsystemboard.ForinformationabouttheAdvancedUpgrade,
see“Usingtheremotepresenceandblue-screencapturefeatures”onpage43
.
•Beforeyoureplacethesystemboard,makesurethatyoubackupanyfeaturesondemand(FoD)keysthat
wereenabled.ReactivateanyFeaturesonDemandfeatures.Instructionsforautomatingtheactivation
offeaturesandinstallingactivationkeysisintheFeaturesonDemandUser'sGuide.Todownloadthe
document,gotohttps://fod.lenovo.com/lkms,login,andclickHelp.
Toremovethesystemboard,completethefollowingsteps:
Step1.Readthesafetyinformationthatbeginson“Safety”onpagev,“Handlingstatic-sensitivedevices”
onpage118
,and“Installationguidelines”onpage116.
Step2.Turnofftheserverandanyattacheddevices.
Step3.Turnofftheperipheraldevicesanddisconnectallpowercords.
276LenovoSystemx3550M5InstallationandServiceGuide