Lenovo ThinkServer RD640 - Page 114

alternativetousinganuninterruptiblepowersupply,andasecondleveloffaulttolerancewhenusedin
conjunctionwithanuninterruptiblepowersupply.
ThetemperatureoftheTR700Batteryisgenerally15-20°C(59-68°F)higherthantheambienttemperature
duringfastcharge.Therefore,tocompletearechargecycle,theambienttemperatureshouldbelower
than55°C(131°F).Iftheambienttemperatureexceeds55°C(131°F),therechargecyclewillterminate
prematurely,thuspreventingtheTR700Batteryfromreachingafullychargedstate.Arechargecyclelasts
atleastsixhoursundernormaloperatingconditions.
Attention:ItisrecommendedthatyoureplacetheTR700Batteryannuallyorafter500rechargingcycles,
whichevercomesfirst.
InstallingtheTR700Battery
Attention:Donotopenyourserverorattemptanyrepairbeforereadingandunderstanding“Safetyinformation”
onpageiiiand“Guidelines”onpage75.
ThistopicprovidesinstructionsonhowtoinstalltheTR700BatteryonaThinkServerRAID700Adapterif
yourserverhasoneinstalled.
Beforeyoubegin,printalltherelatedinstructionsorensurethatyoucanviewthePDFversiononanother
computerforreference.
Note:UseanydocumentationthatcomeswiththeTR700Batteryandfollowthoseinstructionsinaddition
totheinstructionsinthistopic.
ToinstalltheTR700Battery,dothefollowing:
1.Removeallmediafromthedrivesandturnoffallattacheddevicesandtheserver.Then,disconnectall
powercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtotheserver.
2.Iftheserverisinstalledinarackcabinet,removetheserverfromtherackcabinetandplaceitonaflat,
clean,andstatic-protectivesurface.SeetheRackInstallationInstructionsthatcomeswiththeserver.
3.Removetheservercover.See“Removingtheservercover”onpage77.
4.Removethecoolingshroud.See“Removingandreinstallingthecoolingshroud”onpage82.
5.Removetherisercardassembly1andlayitupsidedownonaflat,clean,andstatic-protectivesurface.
See“Replacingtherisercardassembly1”onpage155.
6.RemovetheThinkServerRAID700Adapter,whichisakindofRAIDcard,fromtherisercardassembly
1.See“ReplacingtheRAIDcard”onpage159.
Note:CarefullyhandletheThinkServerRAID700Adapterbyitsedgesandplaceitonaflat,clean,
andstatic-protectivesurfaceafteryouremoveit.
7.Touchthestatic-protectivepackagethatcontainstheTR700Batterytoanyunpaintedsurfaceonthe
outsideoftheserver.Then,taketheTR700Batteryoutofthepackage.
100ThinkServerRD640UserGuideandHardwareMaintenanceManual