
Whattodonext:
•Toworkwithanotherpieceofhardware,gototheappropriatesection.
•Tocompletethereplacement,goto“Completingthepartsreplacement”onpage183
.
Forservicetechnicianonly:replacingthepowerdistributionboard
Attention:ThisproceduremustbeperformedonlybytrainedservicepersonnelofLenovo.Donotopenyourserveror
attemptanyrepairbeforereadingandunderstanding“Safetyinformation”onpageiiiand“Guidelines”onpage67.
CAUTION:
Hazardousmovingparts.Keepfingersandotherbodypartsaway.
CAUTION:
Neverremovethecoveronapowersupplyoranypartthathasthefollowinglabelattached.
Hazardousvoltage,current,andenergylevelsarepresentinsideanycomponentthathasthislabel
attached.Therearenoserviceablepartsinsidethesecomponents.Ifyoususpectaproblemwith
oneoftheseparts,contactaservicetechnician.
Beforeyoubegin,printalltherelatedinstructionsorensurethatyoucanviewthePDFversiononanother
computerforreference.
Note:Useanydocumentationthatcomeswiththenewpowerdistributionboardandfollowthose
instructionsinadditiontotheinstructionsinthistopic.
Toreplacethepowerdistributionboard,dothefollowing:
1.Removeallmediafromthedrivesandturnoffallattacheddevicesandtheserver.Then,disconnectall
powercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtotheserver.
2.Prepareyourserver.See“Removingorextendingtheserverfromtherackcabinet”onpage69.
3.Removetheservercover.See“Removingtheservercover”onpage69.
4.Disconnectthepowercablesfromthepowerdistributionboard.
5.Removethecoolingshroud.See“Removingandreinstallingthecoolingshroud”onpage72.
6.Removethesystemfancagewithsystemfans.See“Removingandreinstallingthesystemfancage”
onpage77.
7.Recordthecomponentlocations,cableconnections,andcableroutingintheserver.
8.Removethetworisercardassemblies.See“Replacingtherisercard”onpage85.
Chapter6.Replacinghardware179
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