Hazardousvoltage,current,andenergylevelsarepresentinsideanycomponentthathasthislabel
attached.Therearenoserviceablepartsinsidethesecomponents.Ifyoususpectaproblemwith
oneoftheseparts,contactaservicetechnician.
Toreplacethepowersupplyassembly,dothefollowing:
1.Turnoffthecomputeranddisconnectallpowercordsfromelectricaloutlets.
2.Removethecomputercover.See“Removingthecomputercover”onpage121.
3.Removethefrontbezel.See“Removingandreinstallingthefrontbezel”onpage122.
4.Pivotthedrivebayassemblyupward.Then,pivotthetwoplasticretainingclipsoutwardtoremove
theheatsinkfanductfromthefailingheatsinkandfanassembly.
Figure76.Removingtheheatsinkfanduct
5.Disconnectthepowersupplyassemblycablesfromalldrivesandfromthe14-pinpowerconnectorand
4-pinpowerconnectoronthesystemboard.See“Locatingpartsonthesystemboard”onpage81.
Note:Youmightalsoneedtoreleasethepowersupplyassemblycablesfromsomecableclipsorties
thatsecurethecablestothechassis.Makesurethatyounotethecableroutingbeforedisconnecting
thecables.
Chapter10.ReplacingFRUs(machinetypes:3377,3386,and3388)137
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