Lenovo ThinkServer RD450 - Page 148

12.Closethemicroprocessorretainer.Closethesmallhandle1firstandthenclosethesmallhandle
2.Ensurethattheretainerislockedintopositionandthenewmicroprocessorissecurelyseatedin
thesocket.
Note:Therearetwomarksonthemicroprocessorretainer.Ensurethatyouclosethesmallhandle
markedwithfirstandthenclosethesmallhandlemarkedwith.Alwaysfollowthecorrectsequence
whenyouclosethesmallhandles.
Figure106.Securingthemicroprocessorinthesocket
13.Useacleaningpadtowipethethermalgreasefromtheremovedheatsink.Disposeofthecleaning
padafterallofthethermalgreaseisremoved.
14.Useoneofthefollowingmethodstoapplyappropriateamountofthermalgreasetothetopofthenewly
installedmicroprocessorintheshapeofacrossoracircleasshown.Usingtoomuchortoolittle
thermalgreasecancauseathermalproblemduetoimperfectcontactwiththecomponents.
Notes:
•Donottouchthethermalgrease.
•Keepthethermalgreaseoffthesystemboard.
Figure107.Applyingthethermalgreasetothetopofthemicroprocessor
15.Reinstalltheheatsink.See“Installingorreplacingaheatsink”onpage124.
16.Ifyouareinstructedtoreturntheoldmicroprocessor,followallpackaginginstructionsanduseany
packagingmaterialsthataresuppliedtoyouforshipping.
Whattodonext:
•Toworkwithanotherpieceofhardware,gototheappropriatesection.
134ThinkServerRD450UserGuideandHardwareMaintenanceManual