ThefollowingdiagramliststheDIMMconnectorsoneachmemorychannel.
Figure139.Connectorsoneachmemorychannel
Followtheinstallationsequenceforranksparingmode:
•Installatleastonequad-rankDIMMinachannel.
•Installatleasttwosingle-rankordual-rankDIMMsinachannel.
Table23.MemoryranksparingmodeDIMMpopulationsequence
NumberofDIMMs
Numberofinstalled
microprocessorDIMMconnector
FirstpairofDIMMs
11,2
SecondpairofDIMMs
14,5
ThirdpairofDIMMs
18,9
FourthpairofDIMMs
111,12
FifthpairofDIMMs
17,10
SixthpairofDIMMs
13,6
SeventhpairofDIMMs
213,14
EighthpairofDIMMs
216,17
NinthpairofDIMMs
220,21
TenthpairofDIMMs
223,24
EleventhpairofDIMMs
219,22
TwelfthpairofDIMMs
215,18
DIMMconnectors3,6,7,10,15,18,19,and22arenotusedinmemoryranksparingmodewhenUDIMMsare
installedintheserver.
Replacingamemorymodule
Usethisinformationtoinstallamemorymodule.
Toinstallamemorymodule,completethefollowingsteps:
Step1.Readthesafetyinformationthatbeginson“Safety”onpagevand“Installationguidelines”
onpage31
.
Step2.Turnofftheserverandperipheraldevicesanddisconnectthepowercordsandallexternalcables,
ifnecessary.
Step3.Removethecover(see“Removingthecover”onpage189).
Step4.Removetheairbaffle(see“Removingtheairbaffle”onpage191).
Chapter6.Removingandreplacingcomponents219
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