Lenovo System x3500 M4 - Page 281

Table37.MemorymirroredchannelmodeDIMMpopulationsequence(continued)
NumberofDIMMs
Numberofinstalled
microprocessorDIMMconnector
SeventhpairofDIMMs
213,16
EighthpairofDIMMs
221,24
NinthpairofDIMMs
214,17
TenthpairofDIMMs
220,23
EleventhpairofDIMMs
219,22
TwelfthpairofDIMMs
215,18
Note:DIMMconnectors3,6,7,10,15,18,19,and22arenotusedinmemorymirroredmodewhenUDIMMs
areinstalledintheserver.
WhenyouinstallorremoveDIMMs,theserverconfigurationinformationchanges.Whenyourestartthe
server,thesystemdisplaysamessagethatindicatesthatthememoryconfigurationhaschanged.
Memoryranksparing
Sparingenablesafailingranktobereplacedbyranksinstalledinanunoccupiedspace.Anunusedspare
rankonthechannelcanbeusedtocopythecontentsofafailingrankonthatchannel.
YoucanenableranksparingmemoryintheSetuputility(see“StartingtheSetuputility”onpage107).
ThefollowingdiagramliststheDIMMconnectorsoneachmemorychannel.
Figure181.Connectorsoneachmemorychannel
Note:YoucaninstallDIMMsforthemicroprocessor2oncethemicroprocessor2isinstalled.Youdonot
needtowaituntilalloftheDIMMconnectorsformicroprocessor1arefilled.
Thefollowingtableshowstheinstallationsequenceformemoryranksparingmode:
Table38.MemoryranksparingmodeDIMMpopulationsequence
NumberofDIMMs
Numberofinstalled
microprocessorDIMMconnector
FirstpairofDIMMs
11,2
SecondpairofDIMMs
14,5
ThirdpairofDIMMs
18,9
FourthpairofDIMMs
111,12
FifthpairofDIMMs
17,10
SixthpairofDIMMs
13,6
Chapter6.Removingandreplacingcomponents267