
CAUTION:
Theheatsinksandmicroprocessorsmightbeveryhot.Turnofftheserverandwaitthreetofive
minutestolettheservercoolbeforeremovingtheservercover.
Beforeyoubegin,printalltherelatedinstructionsorensurethatyoucanviewthePDFversiononanother
computerforreference.
Note:Dependingonthemodel,yourservermightlookslightlydifferentfromtheillustrationsinthistopic.
Toreplacethesystemboard,dothefollowing:
1.Removeallmediafromthedrivesandturnoffallattacheddevicesandtheserver.Then,disconnectall
powercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtotheserver.
2.Iftheserverisinstalledinarackcabinet,removetheserverfromtherackcabinetandplaceitonaflat,
clean,andstatic-protectivesurface.SeetheRackInstallationInstructionsthatcomeswiththeserver.
3.Removethehot-swapredundantpowersupplies.See“Installingorreplacingahot-swapredundant
powersupply”onpage133.
4.Removetheservercover.See“Removingtheservercover”onpage87.
5.Removethecoolingshroud.See“Removingandreinstallingthecoolingshroud”onpage95.
6.Recordthecomponentlocations,cableconnections,andcableroutingintheserver.
7.Removethesystemfancagewiththeinstalledsystemfansasawholebyliftingthesystemfancage
straightupandoutofthechassis.
PSU
Mem
CPU
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Figure156.Removingthesystemfancagewithsystemfans
8.Removethetworisercardassemblies.See“Replacingtherisercardassembly1”onpage176and
“Replacingtherisercardassembly2”onpage178.
192ThinkServerRD440UserGuideandHardwareMaintenanceManual
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