Lenovo ThinkCentre Edge 71 - Replacing the Microprocessor

Figure65.Installingtheheatsinkfanduct
12.Tocompletetheinstallationorreplacement,goto“Completingthepartsreplacement”onpage139.
Replacingthemicroprocessor
Attention:
Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Importantsafetyinformation”
intheThinkCentreUserGuide.ToobtainacopyoftheThinkCentreUserGuide,goto:
http://www.lenovo.com/ThinkCentreUserGuides
Thissectionprovidesinstructionsonhowtoreplacethemicroprocessor.
CAUTION:
Theheatsinkandmicroprocessormightbeveryhot.Turnoffthecomputerandwaitthreetove
minutestoletthecomputercoolbeforeremovingthecomputercover.
Toreplacethemicroprocessor,dothefollowing:
1.Turnoffthecomputeranddisconnectallpowercordsfromelectricaloutlets.
2.Removethecomputercover.See“Removingthecomputercover”onpage109.
3.Removetheheatsinkandfanassembly.See“Replacingtheheatsinkandfanassembly”onpage127.
Note:Placetheheatsinkandfanassemblyonitssidesothatthethermalgreaseonthebottomofit
doesnotgetincontactwithanything.
4.Locatethesystemboardanddisconnectallcablesconnectedtothesystemboard.See“Locatingparts
onthesystemboard”onpage107.
130ThinkCentreHardwareMaintenanceManual