CAUTION:
Neverremovethecoveronapowersupplyoranypartthathasthefollowinglabelattached.
Hazardousvoltage,current,andenergylevelsarepresentinsideanycomponentthathasthislabel
attached.Therearenoserviceablepartsinsidethesecomponents.Ifyoususpectaproblemwith
oneoftheseparts,contactaservicetechnician.
Beforeyoubegin,printalltherelatedinstructionsorensurethatyoucanviewthePDFversiononanother
computerforreference.
Note:Dependingonthemodel,yourservermightlookslightlydifferentfromtheillustrationsinthistopic.
Toreplacethepowerdistributionboardandcageassembly,dothefollowing:
1.Removeallmediafromthedrivesandturnoffallattacheddevicesandtheserver.Then,disconnectall
powercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtotheserver.
2.Removethehot-swapredundantpowersupplies.See“Installingorreplacingahot-swapredundant
powersupply”onpage122.
Note:Ifyourservercomeswithonehot-swapredundantpowersupplyinstalledintheredundantpower
supplybay1(thebaynumberismarkedontherearofthechassis),thereisashiedinstalledonbay2to
protecttheemptybay.Removetheshieldandsaveitforfutureuse.
3.Removetheservercover.See“Removingtheservercover”onpage67.
4.Laytheserveronitssideforeasieroperation.
5.Removethefrontsystemfans.See“Replacingthefrontsystemfan1”onpage144.
6.Recordthecableroutingandconnection.Then,disconnectthepowercablesofthepowerdistribution
boardandcageassemblyfromthesystemboardandorthepowerconversionboard.
7.Releasethepowercablesofthepowerdistributionboardandcageassemblyfromthecableclips
andtiesinthechassis.
Chapter6.Installing,removing,orreplacinghardware127
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