Lenovo ThinkStation C20 - Replacing the Heat Sink and Fan Assembly

board.Connectoneendofthenewsignalcabletotheopticaldriveandtheotherendtoanavailable
SATAconnectoronthesystemboard.See“Locatingpartsandconnectorsonthesystemboard”
onpage71.
b.Locateanavailableve-wirepowerconnectorandconnectittothenewopticaldrive.
Figure26.Connectinganewopticaldrive
7.ReinstallthePCIcardholderintothechassisifyouhaveremovedit.See“Removingandreinstallingthe
PCIcardholder”onpage76.
8.Reinstallthefrontbezel.See“Removingandreinstallingthefrontbezel”onpage75.
9.Tocompletetheinstallationorreplacement,goto“Completingthepartsreplacement”onpage110.
Replacingtheheatsinkandfanassembly
Attention
Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Importantsafety
information”intheThinkStationSafetyandWarrantyGuidethatcamewithyourcomputer.Toobtainacopy
oftheThinkStationSafetyandWarrantyGuide,goto:
http://www.lenovo.com/support
CAUTION:
Theheatsinkandfanassemblymightbeveryhot.Turnoffthecomputerandwaitthree
toveminutestoletthecomputercoolbeforeremovingthecomputercover.
Thissectionprovidesinstructionsonhowtoreplacetheheatsinkandfanassembly.
Toreplacetheheatsinkandfanassembly,dothefollowing:
1.Removeallmediafromthedrivesandturnoffallattacheddevicesandthecomputer.Then,disconnect
allpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothecomputer.
2.Removethecomputercover.See“Removingthecomputercover”onpage74.
3.RemovethePCIcardholder.See“RemovingandreinstallingthePCIcardholder”onpage76.
4.Yourcomputersupportstwoheatsinkandfanassemblies.Locatetheheatsinkandfanassemblyyou
wanttoreplace.See“Locatingcomponents”onpage70.
5.Dependingontheheatsinkandfanassemblyyouwanttoreplace,dooneofthefollowing:
•Ifyouarereplacingheatsinkandfanassembly1,goto6onpage91.
•Ifyouarereplacingheatsinkandfanassembly2,dothefollowing:
a.Removetheopticaldrive.See“Replacingtheopticaldrive”onpage88.
90ThinkStationHardwareMaintenanceManual