Lenovo ThinkCentre E73z - Replacing the Heat Sink Assembly

Replacingtheheatsinkassembly
Attention:Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe
“Importantsafetyinformation”onpage1
Thissectionprovidesinstructionsonhowtoreplacetheheatsinkassembly.
CAUTION:
Theheatsinkandfanassemblymightbeveryhot.Turnoffthecomputerandwaitthreetove
minutestoletthecomputercoolbeforeremovingthecomputercover.
Toreplacetheheatsinkassembly,dothefollowing:
1.Removeallmediafromthedrivesandturnoffallattacheddevicesandthecomputer.Then,disconnect
allpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothecomputer.
2.Placeasoft,cleantowelorclothonthedeskorotheratsurface.Holdthesidesofyourcomputerand
gentlylayitdownsothatthescreenisagainstthesurfaceandthecoverisfacingup.
3.Removethecomputercover.See“Removingthecomputercover”onpage75.
4.Locatetheheatsinkassemblyonthesystemboard.See“LocatingmajorFRUsandCRUs”onpage66.
5.Removethesystemboardshield.See“Removingandreinstallingthesystemboardshield”onpage83.
90ThinkCentreE73zHardwareMaintenanceManual