Lenovo x3550 M5 - Page 271

Attention:Donottouchthethermalmaterialonthebottomoftheheatsink.Touchingthethermal
materialwillcontaminateit.Ifthethermalmaterialonthemicroprocessororheatsinkbecomes
contaminated,youmustwipeoffthecontaminatedthermalmaterialonthemicroprocessororheat
sinkwiththealcoholwipesandreapplycleanthermalgreasetotheheatsink.
a.Useascrewdrivertoloosenthecaptivescrewononesideoftheheatsinktobreaktheseal
withthemicroprocessor.
b.Loosenallthecaptivescrewsontheheatsink,rotatingeachscrewonefullturnuntileach
screwisloose.
c.Gentlylifttheheatsinkfromthemicroprocessor.Afterremoval,placetheheatsink(withthe
thermalgreasesideup)onaclean,flatsurface.
Heat sink
Figure185.Heatsinkremoval
Step7.Openthemicroprocessorsocketreleaseleversandretainer.
Microprocessor
release lever
Microprocessor
release lever
Figure186.Microprocessorsocketleversandretainerdisengagement
a.Identifywhichreleaseleverislabeledasthefirstreleaselevertoopenandopenit.
b.Openthesecondreleaseleveronthemicroprocessorsocket.
c.Openthemicroprocessorretainer.
Chapter5.Removingandreplacingcomponents257