Figure20.Installingtheheatsinkfanduct
Whattodonext:
•Toworkwithanotherpieceofhar dware,gototheappropriatesection.
•Tocompletethereplacement,goto“Completingthepartsreplacement”onpage40.
Replacingthemicroprocessor
Attention:
Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Importantsafetyinformation”
intheThinkCentreSafetyandWarrantyGuidethatcamewithyourcomputer.ToobtainacopyoftheThinkCentre
SafetyandWarrantyGuide,goto:
http://www.lenovo.com/support
Thissectionprovidesinstructionsonhowtoreplacethemicroprocessor.
CAUTION:
Theheatsinkandmicroprocessormightbeveryhot.Turnoffthecomputerandwait
threetoveminutestoletthecomputercoolbeforeremovingthecomputercover.
Toreplacethemicroprocessor,dothefollowing:
1.Removeallmediafromthedrivesandturnoffallattacheddevicesandthecomputer.Then,disconnect
allpowercordsfromelectricaloutletsanddisconnectallcablesthatar econnectedtothecomputer.
2.Removethecomputercover.See“Removingthecomputercover”onpage14.
3.Removetheheatsinkandfanassembly.See“Replacingtheheatsinkandfanassembly”onpage22.
Note:Placetheheatsinkandfanassemblyonitssidesothatthethermalgreaseonthebottomofit
doesnotgetincontactwithanything.
Chapter2.Installingorreplacinghardware25