Lenovo ThinkServer sd350 - Page 142

•Beextremelycareful,themicroprocessorsocketcontactsareveryfragile.Donottouchthe
microprocessorsocketcontacts.Contaminantsonthemicroprocessorcontactsormicroprocessorsocket
contacts,suchasoilfromyourskin,cancauseconnectionfailuresbetweenthecontactsandthesocket.
•Donotallowthethermalgreaseonthemicroprocessorandheatsinktocomeincontactwithanything.
Contactwithanysurfacecancontaminatethethermalgreaseandthemicroprocessorsocket.
•Donotuseanytoolsorsharpobjectstoliftthelockingleversonthemicroprocessorsocket.Doingso
mightresultinpermanentdamagetothesystemboard.
•Eachmicroprocessorsocketmustalwayscontaineitherasocketcoveroramicroprocessorandheatsink.
•Besuretouseonlytheinstallationtoolsprovidedwiththenewmicroprocessortoremoveorinstall
themicroprocessor.Donotuseanyothertool.
•Wheninstallingmultiplemicroprocessors,openonemicroprocessorsocketatatimetoavoiddamaging
othermicroprocessorsocketcontacts.
•Themicroprocessorinstallationtoolhasthemicroprocessorinstalledonthetool,andmayhavea
protectivecoveroverthemicroprocessor.Donotusethetool,orremovethecoveruntilyouare
instructedtodoso.
Note:Besuretousetheinstallationtoolthatcomeswithyourmicroprocessorinstallationtoolassembly.
Thetoolhastwosettingsforinstallingtwodifferentsizesofmicroprocessors.Thesettingsthataremarked
onthetoolare“L”forsmallerlowcoremicroprocessors,and“H”forlargerhighcoremicroprocessors.
Figure65.Microprocessorinstallationtool
Toremoveamicroprocessorandheatsink,completethefollowingsteps:
Step1.Readthesafetyinformationthatbeginson“Safety”onpagevand“Installationguidelines”
onpage75.
Step2.Turnofftheserverandperipheraldevices.
Step3.Removethecomputenode(see“Removingacomputenodefromachassis”onpage77).
Step4.Removetheairbaffle(see“Removingtheairbaffle”onpage86).
Step5.RemovethetwoDIMMslocatednexttotheheatsink(see“RemovingaDIMM”onpage93).
Step6.Locatethemicroprocessortoberemoved(see“System-boardinternalconnectors”onpage23).
Step7.Removetheheatsink.
Attention:Donottouchthethermalmaterialonthebottomoftheheatsink.Touchingthethermal
materialwillcontaminateit.Ifthethermalmaterialonthemicroprocessororheatsinkbecomes
contaminated,youmustwipeoffthecontaminatedthermalmaterialonthemicroprocessororheat
sinkwiththealcoholwipesandreapplycleanthermalgreasetotheheatsink.
126LenovoThinkServersd350ServerType5493,LenovoThinkServern400EnclosureType5495InstallationandServiceGuide