Thehot-swapredundantpowersupplyaddsasecondsourceofpowertotheserver.Whentheserveris
populatedwithtwohot-swapredundantpowersupplies,itcanwithstandapowerlossfromeitherpower
supply.Thishelpsyouavoidsignificantinterruptiontotheoperationofthesystemwhenapowersupply
fails.Youcanreplaceahot-swapredundantpowersupplywithoutturningofftheserver.
Note:TomaintaintheEMIintegrityandcoolingoftheserver,installanewhot-swapredundantpower
supplyassoonasyouremovethefailingoneorcovertheotherbaywithashieldifyouuseonemodule
toprovidepower.
Someservermodelscomewithonlyonepowersupply.Youcanpurchaseahot-swapredundantpower
supplyoptionfromLenovo.
CAUTION:
Hazardousmovingparts.Keepfingersandotherbodypartsaway.
CAUTION:
Neverremovethecoveronapowersupplyoranypartthathasthefollowinglabelattached.
Hazardousvoltage,current,andenergylevelsarepresentinsideanycomponentthathasthislabel
attached.Therearenoserviceablepartsinsidethesecomponents.Ifyoususpectaproblemwith
oneoftheseparts,contactaservicetechnician.
Installingahot-swapredundantpowersupply
Attention:Donotopenyourserverorattemptanyrepairbeforereadingandunderstanding“Safetyinformation”
onpageiiiand“Guidelines”onpage73.
Thistopicprovidesinstructionsonhowtoinstallahot-swapredundantpowersupply.
Beforeyoubegin,printalltherelatedinstructionsorensurethatyoucanviewthePDFversiononanother
computerforreference.
Notes:
•Yourhot-swapredundantpowersupplymightlookslightlydifferentfromtheillustrationsinthistopic.
•Useanydocumentationthatcomeswiththenewhot-swapredundantpowersupplyandfollowthose
instructionsinadditiontotheinstructionsinthistopic.
Toinstallahot-swapredundantpowersupply,dothefollowing:
112ThinkServerRD340UserGuideandHardwareMaintenanceManual
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