Lenovo ThinkServer RD640 - Page 22

Features
Thistopicprovidesgeneralinformationabouttheserverfeaturesforavarietyofmodels.Dependingonyour
specificmodel,somefeaturesmightvaryorunavailable.Forinformationaboutyourspecificmodel,usethe
SetupUtilityprogram.See“ViewinginformationintheSetupUtilityprogram”onpage59.Youalsocanrefer
totheProductsSpecificationsReferencedocumentforThinkServerproductsat:
http://www.lenovo.com/psref/
Microprocessor
OneortwoIntel
®
Xeon
®
microprocessors(internalcachesizevariesbymodel)
ForalistoftheThinkServermicroprocessoroptions,goto:
http://lenovoquickpick.com/usa/home/thinkserver/rack-and-tower-server
Memory
Yourserverhas20memoryslots.Formoreinformation,see“Memorymoduleinstallationrules”onpage86
.
Powersupply
Oneortwo800-watthot-swapredundantpowersupplies(Universalinputandcompliantwith80PLUSGold)
Note:Ifyouareusinguninterruptiblepowersupplies(UPS),ensurethatyouuseonlypure-sineUPSes
withyourThinkServerserver.
Systemfans
Yourserversupportssixhot-swapsystemfanswithredundancy,whichmeansthatfivesystemfanscan
provideadequatecoolingwhiletheextraoneservesasaredundantsystemfan.Thisdesignhelpsyouto
avoidsignificantcoolingproblemswhenasystemfanfailsandyoucanreplaceahot-swapsystemfan
withoutturningofftheserver.
8ThinkServerRD640UserGuideandHardwareMaintenanceManual