Hazardousvoltage,current,andenergylevelsarepresentinsideanycomponentthathasthislabel
attached.Therearenoserviceablepartsinsidethesecomponents.Ifyoususpectaproblemwith
oneoftheseparts,contactaservicetechnician.
Toreplacethepowersupplyassembly,dothefollowing:
1.Turnoffthecomputeranddisconnectallpowercordsfromelectricaloutlets.
2.Removethecomputercover.See“Removingthecomputercover”onpage109.
3.Removethefrontbezel.See“Removingandreinstallingthefrontbezel”onpage110.
4.Pivotthedrivebayassemblyupward.Then,pivotthetwoplasticretainingclipsoutwardtoremove
theheatsinkfanductfromthefailingheatsinkandfanassembly.
Figure59.Removingtheheatsinkfanduct
5.Disconnectthepowersupplyassemblycablesfromalldrivesandfromthe24-pinpowerconnectorand
4-pinpowerconnectoronthesystemboard.See“Locatingpartsonthesystemboard”onpage107.
Note:Youmightalsoneedtoreleasethepowersupplyassemblycablesfromsomecableclipsorties
thatsecurethecablestothechassis.Makesurethatyounotethecableroutingbeforedisconnecting
thecables.
124ThinkCentreHardwareMaintenanceManual
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