
19.Installthenewsystemboardintothechassisandpressthesystemboardtotherearoftheserver.
Ensurethat:
•Thenewsystemboardisengagedbythemountingstudonthechassis.
•Therearconnectorsonthenewsystemboardareinsertedintothecorrespondingholesinthe
rearpanel.
Figure122.Installingthesystemboard
20.Removethemicroprocessorsfromtheoldsystemboardandinstallthemonthenewsystemboard.See
“Installingorreplacingthemicroprocessor”onpage107.
Note:Donotdropanythingontothemicroprocessorsocketontheoldsystemboardwhileitisexposed.
Thesocketpinsmustbekeptascleanaspossible.
21.Useacleaningpadtowipethethermalgreasefromtheheatsinksandthetopofthemicroprocessors.
Disposeofthecleaningpadafterallofthethermalgreaseisremoved.
22.Useoneofthefollowingmethodstoapplyappropriateamountofthermalgreasetothetopofthe
microprocessorsintheshapeofacrossoracircleasshown.Usingtoomuchortoolessthermalgrease
cancauseathermalproblemduetoimperfectcontactwiththecomponents.
Notes:
•Donottouchthethermalgrease.
•Keepthethermalgreaseoffthesystemboard.
Figure123.Applyingthethermalgreasetothetopofthemicroprocessor
142ThinkServerRD550UserGuideandHardwareMaintenanceManual
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