Lenovo ThinkCentre Edge 91 - Replacing the Heat Sink and Fan Assembly

10.Lowerandpositiontheheatsinkfanductonthetopoftheheatsinkandfanassemblyuntilitsnaps
intoposition.
3 4
5 6 7 8
Figure64.Installingtheheatsinkfanduct
11.Securethepowersupplyassemblycableswiththecableclipsandtiesinthechassis.
12.Tocompletetheinstallationorreplacement,goto“Completingthepartsreplacement”onpage141.
Replacingtheheatsinkandfanassembly
Attention:
Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Importantsafetyinformation”
intheThinkCentreUserGuide.ToobtainacopyoftheThinkCentreUserGuide,goto:
http://www.lenovo.com/ThinkCentreUserGuides
Thissectionprovidesinstructionsonhowtoreplacetheheatsinkandfanassembly.
CAUTION:
Theheatsinkandfanassemblymightbeveryhot.Turnoffthecomputerandwaitthreetove
minutestoletthecomputercoolbeforeremovingthecomputercover.
Toreplacetheheatsinkandfanassembly,dothefollowing:
1.Turnoffthecomputeranddisconnectallpowercordsfromelectricaloutlets.
2.Removethecomputercover.See“Removingthecomputercover”onpage112.
3.Removethefrontbezel.See“Removingandreinstallingthefrontbezel”onpage113.
130ThinkCentreHardwareMaintenanceManual