•Installatleasttwosingle-rankordual-rankDIMMsinachannel.
Table14.MemoryranksparingmodeDIMMpopulationsequence
NumberofDIMMs
Numberofinstalled
microprocessorDIMMconnector
FirstpairofDIMMs
11,2
SecondpairofDIMMs
14,5
ThirdpairofDIMMs
18,9
FourthpairofDIMMs
111,12
FifthpairofDIMMs
13,6
SixthpairofDIMMs
17,10
SeventhpairofDIMMs
113,14
EighthpairofDIMMs
116,17
NinthpairofDIMMs
120,21
TenthpairofDIMMs
123,24
EleventhpairofDIMMs
115,18
TwelfthpairofDIMMs
119,22
Replacingamemorymodule
Usethisinformationtoreplaceamemorymodule.
Step1.Readthesafetyinformationthatbeginson“Safety”onpagevand“Installationguidelines”on
page297.
Step2.Turnofftheserverandperipheraldevicesanddisconnectthepowercordsandallexternalcables,
ifnecessary.
Step3.Removethetopcover(see“Removingthetopcover”onpage149).
Step4.Removetheairbaffle(see“Removingtheairbaffle”onpage152).
Step5.CarefullyopentheretainingclipsoneachendoftheDIMMconnectorandremovetheDIMM.
Attention:ToavoidbreakingtheretainingclipsordamagingtheDIMMconnectors,openand
closetheclipsgently.
Chapter5.Installing,removing,andreplacingcomponents177
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