Step2.Unlockandremovetheleft-sidecover(see“Removingtheleft-sidecover”onpage182).
Step3.Removetheairbaffle(see“Removingtheairbaffle”onpage188).
Step4.LocatetheDIMMconnectorsonthesystemboard(see“System-boardinternalconnectors”on
page25).
Attention:ToavoidbreakingtheretainingclipsordamagingtheDIMMconnectors,handlethe
clipsgently.
Step5.MovetheDIMMretainingclipsonthesideoftheDIMMconnectortotheopenpositionbypressing
theretainingclipsawayfromthecenteroftheDIMMconnector.
DIMM
Alignment
slot
Retaining
clip
Alignment tab
Figure170.Memorymoduleremoval
Step6.Usingyourfingers,lifttheDIMMoutoftheDIMMconnector.
Ifyouareinstructedtoreturntheservercomponentoroptionaldevice,followallpackaginginstructions,
anduseanypackagingmaterialsforshippingthataresuppliedtoyou.
Memorymoduleinstallation
ThefollowingnotesdescribethetypesofDIMMsthattheserversupportsandotherinformationthatyou
mustconsiderwhenyouinstallDIMMs.
•WhenyouinstallorremoveDIMMs,theserverconfigurationinformationchanges.Whenyourestartthe
server,thesystemdisplaysamessagethatindicatesthatthememoryconfigurationhaschanged.
•Theserversupportsonlyindustry-standarddouble-data-rate4(DDR4),1600,1866,or2133
MHz,PC4-12800,PC4-14900,orPC4-17000registeredorloaddeduction,synchronousdynamic
random-accessmemory(SDRAM)dualinlinememorymodules(DIMMs)witherrorcorrectingcode(ECC).
Seehttp://www.lenovo.com/serverproven/foralistofsupportedmemorymodulesfortheserver.
–ThespecificationsofaDDR4DIMMareonalabelontheDIMM,inthefollowingformat.
gggggeRxffPC4v-wwwwwm-aa-bb-ccd
where:
–gggggisthetotalcapacityoftheDIMM(forexample,1GB,2GB,or4GB)
Chapter6.Removingandreplacingcomponents251