Lenovo ThinkServer TD350 - Page 190

17.Installthenewsystemboardintothechassis.Aligntheholesinthenewsystemboardwiththe
correspondingmountingstudsonthechassis.Then,movethesystemboardtowardstherearofthe
server.Ensurethattherearconnectorsonthenewsystemboardareinsertedintothecorresponding
holesintherearpanel.Tightenthetwoscrewstosecurethesystemboardinplace
Figure144.Installingthesystemboard
18.Removethemicroprocessorsfromtheoldsystemboardandinstallthemonthenewsystemboard.See
“Installingorreplacingthemicroprocessor”onpage138.
19.Useacleaningpadtowipethethermalgreasefromtheheatsinksandthetopofthemicroprocessors.
Disposeofthecleaningpadafterallofthethermalgreaseisremoved.
20.Useoneofthefollowingmethodstoapplyappropriateamountofthermalgreasetothetopofthe
microprocessorsintheshapeofacrossoracircleasshown.Usingtoomuchortoolittlethermalgrease
cancauseathermalproblemduetoimperfectcontactwiththecomponents.
Notes:
•Donottouchthethermalgrease.
•Keepthethermalgreaseoffthesystemboard.
Figure145.Applyingthethermalgreasetothetopofthemicroprocessor
21.Installtheheatsinksonthenewsystemboard.See“Replacingtheheatsink”onpage169.
22.Theoldsystemboardmustbereturnedwithtwomicroprocessorsocketcoverstoprotectthepinson
themicroprocessorsocketsduringshippingandhandling.Usethemicroprocessorsocketcovers
removedfromthenewsystemboard.
Toinstallamicroprocessorsocketcoverontheoldsystemboard,dothefollowing:
176ThinkServerTD350UserGuideandHardwareMaintenanceManual