Lenovo System x3250 M4 - Installing a DIMM

InstallingaDIMM
UsethisinformationtoinstallaDIMM.
Readthesafetyinformationin“Safety”onpagevand“Installationguidelines”onpage33.
Ifyouareinstallinganoptionaldeviceintheserver,turnofftheserverandperipheraldevices,anddisconnect
thepowercordsandallexternalcables.
Attention:Staticelectricitythatisreleasedtointernalservercomponentswhentheserverispoweredon
mightcausetheservertohalt,whichmightresultinthelossofdata.Toavoidthispotentialproblem,
alwaysuseanelectrostatic-dischargewriststraporothergroundingsystemwhenyouworkinsidethe
serverwiththepoweron.
ThefollowingillustrationshowsthelocationoftheDIMMconnectorsonthesystemboard.
DIMM 1
DIMM 2
DIMM 3
DIMM 4
Microprocessor
DIMM 4 DIMM 3 DIMM 2 DIMM 1
Figure17.ThelocationoftheDIMMconnectorsonthesystemboard
ToinstallaDIMM,completethefollowingsteps.
Step1.LocatetheDIMMconnectorsonthesystemboard.Determinetheconnectorsintowhichyouwill
installtheDIMMs.InstalltheDIMMsinthesequenceshowninthefollowingtable.
Table10.DIMMinstallationsequence
NumberofDIMMsInstallationsequence(connectors)
FirstpairofDIMMs
1,3
SecondpairofDIMMs
2,4
Step2.OpentheretainingcliponeachendoftheDIMMconnector.
Attention:ToavoidbreakingtheretainingclipsordamagingtheDIMMconnectors,openand
closetheclipsgently.
Chapter2.Installingoptionaldevices47