Figure17.Installingtheopticaldrive
7.Connectthesignalcableandthepowercabletotherearofthenewopticaldrive.
Whattodonext:
•Toworkwithanotherpieceofhardware,gototheappropriatesection.
•Tocompletethereplacement,goto“Completingthepartsreplacement”onpage84.
Replacingtheheatsink
Attention
Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Importantsafetyinformation”
intheThinkCentreSafetyandWarrantyGuidethatcamewithyourcomputer.ToobtainacopyoftheThinkCentre
SafetyandWarrantyGuide,goto:http://www.lenovo.com/support
Thissectionprovidesinstructionsonhowtoreplacetheheatsink.
CAUTION:
Theheatsinkmightbeveryhot.Turnoffthecomputerandwaitthreetoveminutesto
letthecomputercoolbeforeremovingthecomputercover.
Toreplacetheheatsink,dothefollowing:
1.Removethecomputercover.See“Removingthecomputercover”onpage68.
2.Locatetheheatsink.See“Locatingcomponents”onpage66.
3.Removethefourscrewsthatsecuretheheatsink.Then,lifttheheatsinkoffthesystemboard.
Notes:
a.Carefullyremovethefourscrewsfromthesystemboardtoavoidanypossibledamage.Thefour
screwscannotberemovedfromtheheatsink.
b.Youmighthavetogentlytwisttheheatsinktofreeitfromthemicroprocessor.
c.Whenhandlingtheheatsink,donottouchthethermalgreaseonthebottomoftheheatsink.
76HardwareMaintenanceManual
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