11.Lowerandpositiontheheatsinkfanductonthetopoftheheatsinkandfanassemblyuntilthetwo
screwholesintheheatsinkfanductarealignedwiththoseintheheatsinkandfanassembly.Install
thetwoscrewstosecuretheheatsinkfanduct.
Figure25.Installingtheheatsinkfanduct
Whattodonext:
•Toworkwithanotherpieceofhardware,gototheappropriatesection.
•Tocompletethereplacement,goto“Completingthepartsreplacement”onpage68.
Replacingthemicroprocessor
Attention:
Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Importantsafetyinformation”
intheThinkCentreSafetyandWarrantyGuidethatcamewithyourcomputer.ToobtainacopyoftheThinkCentre
SafetyandWarrantyGuide,goto:
http://www.lenovo.com/support
Thissectionprovidesinstructionsonhowtoreplacethemicroprocessor.
CAUTION:
Theheatsinkandmicroprocessormightbeveryhot.Turnoffthecomputerandwaitthree
toveminutestoletthecomputercoolbeforeremovingthecomputercover.
Toreplacethemicroprocessor ,dothefollowing:
1.Removeallmediafromthedrivesandturnoffallattacheddevicesandthecomputer.Then,disconnect
allpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothecomputer.
46ThinkCentreUserGuide