Replacingthemicroprocessor
Attention:
Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Importantsafetyinformation”
intheThinkCentreSafetyandWarrantyGuidethatcamewithyourcomputer.ToobtainacopyoftheThinkCentre
SafetyandWarrantyGuide,goto:
http://www.lenovo.com/support
Thissectionprovidesinstructionsonhowtoreplacethemicroprocessor.
CAUTION:
Theheatsinkandmicroprocessormightbeveryhot.Turnoffthecomputerandwaitthreetove
minutestoletthecomputercoolbeforeremovingthecomputercover.
Toreplacethemicroprocessor,dothefollowing:
1.Removeallmediafromthedrivesandturnoffallattacheddevicesandthecomputer.Then,disconnect
allpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothecomputer.
2.Placeasoft,cleantowelorclothonthedeskorsurface.Holdthesidesofyourcomputerandgentlylay
itdownsothatthescreenisagainstthesurfaceandthecoverisfacingup.
3.Removethecomputercover.See“Removingthecomputercover”onpage15.
4.Removethefanductandtheheatsinkfromthesystemboard.See“Replacingtheheatsink”onpage29.
5.Liftthesmallhandle1andopentheretainer2toaccessthemicroprocessor3.
6.Liftthemicroprocessorstraightupandoutofthesocket.SeeFigure24“Removingthemicroprocessor”
onpage33.
Notes:
a.Yourmicroprocessorandsocketmightlookdifferentfromtheoneillustrated.
b.Notetheorientationofthemicroprocessorinthesocket.Y oucaneitherlookforthesmalltriangle1
ononecornerofthemicr oprocessorornotetheorientationofthenotches2onthemicroprocessor.
Thisisimportantwheninstallingthenewmicroprocessoronthesystemboard.
32ThinkCentreUserGuide