Lenovo System x3250 M4 - Memory Module Installation

Step7.Followtheinstructionsthatcomewiththedrivetosetanyjumpersorswitches.
Ifyouhaveotherdevicestoinstall,dosonow.Otherwise,goto“Completingtheinstallation”onpage54.
Memorymoduleinstallation
ThefollowingnotesdescribethetypesofDIMMsthattheserversupportsandotherinformationthatyou
mustconsiderwhenyouinstallDIMMs.
•ConfirmthattheserversupportstheDIMMthatyouareinstalling(seehttp://www.lenovo.com/
serverproven/).
•WhenyouinstallorremoveDIMMs,theserverconfigurationinformationchanges.Whenyourestartthe
server,thesystemdisplaysamessagethatindicatesthatthememoryconfigurationhaschanged.You
canusetheSetuputilitytoviewtheserverconfigurationinformation,see“UsingtheSetuputility”on
page64
formoreinformation.
•Theserversupportsonlyindustry-standarddouble-data-rate3(DDR3),1333or1600MHz,PC3L-12800
(single-rankordual-rank),unbufferedorsynchronousdynamicrandom-accessmemory(SDRAM)dual
inlinememorymodules(DIMMs)witherrorcorrectingcode(ECC).
•Theserversupportsamaximumoffoursingle-rankordual-rankunbufferedDIMMs.
•ThemaximumoperatingspeedoftheserverisdeterminedbytheslowestDIMMintheserver.
•IfyouinstallapairofDIMMsinDIMMconnectors1and3,thesizeandspeedoftheDIMMsthatyou
installinDIMMconnectors1and3mustmatcheachother.However,theydonothavetobethesame
sizeandspeedastheDIMMsthatareinstalledinDIMMconnectors2and4.
•YoucanusecompatibleDIMMsfromvariousmanufacturersinthesamepair.
•ThespecificationsofaDDR3DIMMareonalabelontheDIMM,inthefollowingformat.
gGBeRxfPC3v-wwwwwm-aa-bb-cc
where:
–gGBisthetotalcapacityoftheDIMM(forexample,1GB,2GB,or4GB)
–eRisthenumberofranks
–1R=single-rank
–2R=dual-rank
–4R=quad-rank
–xfisthedeviceorganizationorbitwidth(forexample,x4,x8,orx16)
–x4=x4organization(4DQlinesperSDRAM)
–x8=x8organization
–x16=x16organization
–wwwwwistheDIMMbandwidth,inMBps
•8500=8.53GBps(DDR3-1066SDRAMs,8-byteprimarydatabus)
•10600=10.66GBps(DDR3-1333SDRAMs,8-byteprimarydatabus)
•12800=12.80GBps(DDR3-1600SDRAMs,8-byteprimarydatabus)
–mistheDIMMtype
•E=UnbufferedDIMM(UDIMM)withECC(x72-bitmoduledatabus)
•R=RegisteredDIMM(RDIMM)
•U=UnbufferedDIMMwithnoECC(x64-bitprimarydatabus)
Chapter2.Installingoptionaldevices45