Yourserverhasaspecialtypeofmemorythatmaintainsthedate,time,andconfigurationinformationfor
built-infeatures.Thecoin-cellbatterykeepstheinformationactivewhenyouturnofftheserver.The
coin-cellbatterynormallyrequiresnochargingormaintenancethroughoutitslife;however,nobatterylasts
forever.Ifthecoin-cellbatteryfails,thedate,time,andconfigurationinformation,includingpasswords,are
lostandanerrormessageisdisplayedwhenyouturnontheserver.
DANGER
Dangerofexplosionifbatteryisincorrectlyreplaced.
Whenreplacingthelithiumcoincellbattery,useonlythesameoranequivalenttypethatis
recommendedbythemanufacturer.Thebatterycontainslithiumandcanexplodeifnotproperly
used,handled,ordisposedof.
Donot:
•Throworimmerseintowater
•Heattomorethan100°C(212°F)
•Repairordisassemble
Disposeofthebatteryasrequiredbylocalordinancesorregulations.
ThefollowingstatementappliestousersinthestateofCalifornia,U.S.A.
CaliforniaPerchlorateInformation:
Productscontainingmanganesedioxidelithiumcoincellbatteriesmaycontainperchlorate.
PerchlorateMaterial-specialhandlingmayapply,See
http://www.dtsc.ca.gov/hazardouswaste/perchlorate
Beforeyoubegin,printalltherelatedinstructionsorensurethatyoucanviewthePDFversiononanother
computerforreference.
Toreplacethecoin-cellbattery,dothefollowing:
Note:Afteryoureplacethecoin-cellbattery,youmustresetpasswords,resetsystemdateandtime,and
reconfiguretheserver.
1.Removeallexternalmediafromthedrivesandturnoffallattacheddevicesandtheserver.Then,
disconnectallpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedto
theserver.
2.Prepareyourserver.See“Removingorextendingtheserverfromtherackcabinet”onpage61.
3.Removetheservercover.See“Removingtheservercover”onpage61.
4.Locatethecoin-cellbattery.See“Systemboardcomponents”onpage36.
Note:IfthereisanyPCIecardinstalledontherisercardassembly,itmightblockyouraccesstothe
coin-cellbattery.Inthiscase,youneedtocarefullylifttherisercardassemblyupsothatyoucan
accessthecoin-cellbattery.Youdonotneedtodisconnectanycablesfromtherisercardassembly
orcompletelyremovetherisercardassembly.
146ThinkServerRD550UserGuideandHardwareMaintenanceManual
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