Computer Hardware User Manual

•ThememorychannelsrunatthefastestcommonfrequencyoftheinstalledDIMMs.
•RDIMMsaresupportedinmodelswithanXeon3400seriesprocessor.
•DonotusebothRDIMMsandUDIMMsinthesameserver.
•Theserversupportsuptothreesingle-rank,dual-rank,orquad-rankRDIMMsperchannel.
•TheRDIMMoptionsthatareavailablefortheserverare1GB,2GB,4GB,and8GB(whenavailable)
DIMMs.
•Youcaninstallamaximumof32GBofmemoryintheserverwhenyouuseRDIMMs.
•ThefollowingtableliststhesupportedRDIMMpopulation.
Table11.SupportedRDIMMpopulationperchannel
DIMMconnectors
perchannel
DIMMsinstalledin
eachchannelDIMMtypeDIMMspeed
RanksperDIMM
(anycombination)
31RegisteredDDR3
ECC
1066,1333
Single-rank,
dual-rank
32RegisteredDDR3
ECC
1066,1333
Single-rank,
dual-rank
33RegisteredDDR3
ECC
800
Single-rank,
dual-rank
31RegisteredDDR3
ECC
1066
Quad-rank
32RegisteredDDR3
ECC
800
Quad-rank
•ThefollowingtableliststhemaximumDIMMpopulationusingrankedRDIMMs.
Table12.MaximummemorypopulationusingrankedRDIMMs(dependingonyourmodel)
NumberofRDIMMsDIMMtypeSizeTotalmemory
6
Single-rankRDIMMs1GB6GB
6
Single-rankRDIMMs2GB12GB
6Dual-rankRDIMMs
2GB12GB
4Dual-rankRDIMMs
4GB16GB
4
Quad-rankRDIMMs4GB16GB
6Dual-rankRDIMMs
4GB24GB
4
Quad-rankRDIMMs8GB(whenavailable)32GB
•ThefollowingtableshowstheRDIMMmemorypopulationruletooptimizethesystemperformance.
Table13.RDIMMpopulationrulefordual-channelsymmetricmode
DIMM
connector1
DIMM
connector2
DIMM
connector3
DIMM
connector4
DIMM
connector5
DIMM
connector6
PopulatedEmptyEmptyEmptyEmptyEmpty
PopulatedEmptyEmptyPopulatedEmptyEmpty
PopulatedPopulatedEmptyPopulatedPopulatedEmpty
PopulatedPopulatedPopulatedPopulatedPopulatedPopulated
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