Lenovo ThinkServer TD350 - Page 97

•Eachslotsupports4GB,8GB,16GB,and32GBdoubledatarate4(DDR4)RDIMMs.
•Eachslotsupports32GBand64GBDDR4loadreductiondualinlinememorymodules(LRDIMMs).
•Yourserversupportsuptoeightmemorymoduleswhenonemicroprocessorisinstalledandupto16
memorymoduleswhentwomicroprocessorsareinstalled.
•Theminimumsystemmemoryis4GB(onlyonemicroprocessorinstalledandonlyone4GBRDIMM
installedintheCPU1DIMMA1slot).
•Themaximumsystemmemoryis1024GB(twomicroprocessorsinstalledandone64GBLRDIMM
installedineachofthe16memoryslots).
Note:Ifyourserverhasa64GB2400MHzmemorymoduleinstalled,ensurethattheambienttemperature
doesnotexceed35°C(95°F)andallsystemfansareworkingproperly.Ifasystemfanfails,turnofftheserver
immediatelyandreplacethesystemfanassoonaspossibletoavoidsystemfailureordataloss.Toreplace
asystemfan,refertoReplacingthesystemfan.
Formoreinformationaboutthememorymodulesinyourspecificservermodel,usetheSetupUtility
program.See“ViewinginformationintheSetupUtilityprogram”onpage57.
ForalistofsupportedThinkServermemorymoduleoptions,goto:
http://lenovoquickpick.com/usa/home/thinkserver/rack-and-tower-server
Beforeinstallingamemorymodule,ensurethatyouobservethefollowingguidelines:
•Allmemorymodulestobeinstalledmustbethesametype(RDIMMorLRDIMM).
•Whenyouinstallmemorymoduleswithdifferentranksinonechannel,startfromthefarthestmemoryslot
inthechannelandinstallthememorymodulethathasthemostranksfirst.
•Ifyouinstall1.35Vmemorymodulesand1.50Vmemorymodulesintothememoryslotsforthesame
microprocessor,youmustconfiguretheworkingvoltageintheBIOSsothatallthememorymodules
runat1.50V.
•Whenyouinstallmemorymoduleswithdifferentfrequenciesintothememoryslotsforthesame
microprocessor,allthememorymodulesrunatthelowestfrequency.
•Itisrecommendedthatyouinstallthelow-voltagememorymodulesintothememoryslotsforthesame
microprocessortoensurelowpowerconsumption.
•Itisrecommendedthatyouinstallthehigh-frequencymemorymodulesintothememoryslotsforthe
samemicroprocessortoensurehighperformance.
Chapter6.Replacinghardware83