Dependingonthemodel,yourservermightcomewithoneortwomicroprocessors.Forservermodelswith
onemicroprocessor,themicroprocessorisinstalledinthemicroprocessorsocket1andthemicroprocessor
socket2isprotectedbyaplasticsocketcover.YoucanpurchaseamicroprocessoroptionkitfromLenovo
andinstallthesecondmicroprocessortoexpandsystemcapabilities.
CAUTION:
Turnofftheserverandwaitthreetofiveminutestolettheservercoolbeforeremovingtheserver
cover.
Beforeyoubegin,printalltherelatedinstructionsorensurethatyoucanviewthePDFversiononanother
computerforreference.
Notes:
•Ensurethatyouinstallthecorrecttypeofmicroprocessoroptionyourserversupports.See“Features”on
page8
.Whentwomicroprocessorsareinstalled,bothmusthavethesamecorevoltageandcorespeed.
•Useanydocumentationthatcomeswiththemicroprocessoroptionkitandfollowthoseinstructionsin
additiontotheinstructionsinthistopic.
•Yourmicroprocessor,socket,andsocketcovermightlookslightlydifferentfromtheillustrationsinthis
topic.
Toinstallthesecondmicroprocessor,dothefollowing:
1.Removeallmediafromthedrivesandturnoffallattacheddevicesandtheserver.Then,disconnectall
powercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtotheserver.
2.Iftheserverisinstalledinarackcabinet,removetheserverfromtherackcabinetandplaceitonaflat,
clean,andstatic-protectivesurface.SeetheRackInstallationInstructionsthatcomeswiththeserver.
3.Removetheservercover.See“Removingtheservercover”onpage77.
4.Removethecoolingshroud.See“Removingandreinstallingthecoolingshroud”onpage82.
5.Locatethemicroprocessorsocket2onthesystemboard.See“Systemboardcomponents”onpage46.
6.Openthesmallhandle2firstbygentlypressingdownthehandlealittlebitandthenpullingthehandle
outwardtoreleaseitfromthesecuredposition.Then,opentheothersmallhandle
1inthesameway.
Note:Therearetwomarksonthemicroprocessorretainer.Youneedtoopenthesmallhandlemarked
withfirstandthenyoucanopentheothersmallhandlemarkedwith.
Figure74.Openingthehandles
120ThinkServerRD640UserGuideandHardwareMaintenanceManual