Lenovo ThinkServer TS460 - Page 127

6.Placetheoldsystemboardonaclean,flat,andstatic-protectivesurface.
7.Notetheorientationofthenewsystemboardandcarefullyplaceitintothechassis.Ensurethattherear
connectorsonthenewsystemboardareinsertedintothecorrespondingholesintherearpanelandthe
eightscrewholesinthenewsystemboardarealignedwiththecorrespondingmountingstudsonthe
chassis.Then,installtheeightscrewsfollowingtherecommendednumericalsequenceinthereverse
sequenceasyouremovethemtosecurethenewsystemboardinplace.
8.Forthenewsystemboard,removetheCPUsocketcoverfromtheCPUsocket.
Note:DonotdropanythingontotheCPUsocketwhileitisexposed.Thesocketpinsmustbekept
ascleanaspossible.
Figure86.RemovingtheCPUsocketcover
9.RemovetheCPUfromtheoldsystemboardandinstallitonthenewsystemboard.See“CPU”on
page104.
10.UseacleaningpadtowipethethermalgreasefromtheheatsinkandthetopoftheCPU.Disposeofthe
cleaningpadafterallofthethermalgreaseisremoved.
11.UseoneofthefollowingmethodstoapplyappropriateamountofthermalgreasetothetopoftheCPU
intheshapeofacrossoracircleasshown.Usingtoomuchortoolittlethermalgreasecancausea
thermalproblemduetoimperfectcontactwiththecomponents.
Notes:
•Donottouchthethermalgrease.
•Keepthethermalgreaseoffthesystemboard.
Figure87.ApplyingthethermalgreasetothetopoftheCPU
12.Installtheheatsinkandfanassemblyonthenewsystemboard.See“Installingtheheatsinkand
fanassembly”onpage96.
13.Reinstallallpartsthatyouhaveremovedonebyoneinthereversedsequenceasyouremovethem.
Connectallcablestothenewsystemboard.
Chapter5.Replacinghardware113