Lenovo System x3550 M5 - Page 282

•Microprocessorsaretobeinstalledonlybytrainedtechnicians.
Important:Alwaysusethemicroprocessorinstallationtooltoinstallamicroprocessor.Failingtouse
themicroprocessorinstallationtoolmaydamagethemicroprocessorsocketsonthesystemboard.Any
damagetothemicroprocessorsocketsmayrequirereplacingthesystemboard.
•Beextremelycareful,themicroprocessorsocketcontactsareveryfragile.Donottouchthe
microprocessorsocketcontacts.Contaminantsonthemicroprocessorcontactsormicroprocessorsocket
contacts,suchasoilfromyourskin,cancauseconnectionfailuresbetweenthecontactsandthesocket.
•Donotallowthethermalgreaseonthemicroprocessorandheatsinktocomeincontactwithanything.
Contactwithanysurfacecancontaminatethethermalgreaseandthemicroprocessorsocket.
•Donotuseanytoolsorsharpobjectstoliftthelockingleversonthemicroprocessorsocket.Doingso
mightresultinpermanentdamagetothesystemboard.
•Eachmicroprocessorsocketmustalwayscontaineitherasocketcoveroramicroprocessorandheatsink.
•Besuretouseonlytheinstallationtoolsprovidedwiththenewmicroprocessortoremoveorinstall
themicroprocessor.Donotuseanyothertool.
•Wheninstallingmultiplemicroprocessors,openonemicroprocessorsocketatatimetoavoiddamaging
othermicroprocessorsocketcontacts.
•Theserversupportsuptotwomulti-coremicroprocessors.Seehttp://www.lenovo.com/serverproven/
foralistofsupportedmicroprocessors.
•Thefirstmicroprocessormustalwaysbeinstalledinmicroprocessorsocket1onthesystemboard.
•Whenonemicroprocessorisinstalled,theairbafflemustbeinstalledtoprovidepropersystemcooling.
•Donotremovethefirstmicroprocessorfromthesystemboardwhenyouinstallthesecond
microprocessor.
•Whenyouinstallthesecondmicroprocessor,youmustalsoinstalladditionalmemoryandthefan6and
fan8.See“Memorymoduleinstallation”onpage160
fordetailsabouttheinstallationsequence.
•Donotmixmicroprocessorswithdifferentcoresinthesameserver.
•Toensureproperserveroperationwhenyouinstallanadditionalmicroprocessor,usemicroprocessors
thathavethesameQuickPathInterconnect(QPI)linkspeed,integratedmemorycontrollerfrequency,core
frequency,powersegment,internalcachesize,andtype.
•Mixingmicroprocessorsofdifferentsteppinglevelswithinthesameservermodelissupported.
•Whenmixingmicroprocessorswithdifferentsteppinglevelswithinthesameservermodel,youdonot
havetoinstallthemicroprocessorwithloweststeppinglevelandfeaturesinmicroprocessorsocket1.
•Bothmicroprocessorvoltageregulatormodulesareintegratedonthesystemboard.
•Readthedocumentationthatcomeswiththemicroprocessortodeterminewhetheryouhavetoupdate
theserverfirmware.Todownloadthelatestlevelofserverfirmwareandothercodeupdatesforyour
server,gotohttp://www.ibm.com/support/fixcentral.
•Themicroprocessorspeedsareautomaticallysetforthisserver;therefore,youdonothavetosetany
microprocessorfrequency-selectionjumpersorswitches.
•Ifthethermal-greaseprotectivecover(forexample,aplasticcaportapeliner)isremovedfromtheheat
sink,donottouchthethermalgreaseonthebottomoftheheatsinkorsetdowntheheatsink.Formore
informationaboutapplyingorworkingwiththermalgrease,see“Thermalgrease”onpage275
.
Note:Removingtheheatsinkfromthemicroprocessordestroystheevendistributionofthethermal
greaseandrequiresreplacingthethermalgrease.
•Toorderanadditionaloptionalmicroprocessor,contactyourLenovosalesrepresentativeorLenovo
reseller.
268LenovoSystemx3550M5InstallationandServiceGuide