Lenovo ThinkServer TD350 70DG - Page 97

Table3.Memorymoduleinstallationrulesforserverswithtwomicroprocessors
CPU1DIMMCPU2DIMM
A1A2B1B2
C1C2
D1D2A1A2B1B2
C1C2
D1D2
4DIMMsXXXX
8DIMMsXXXXXXXX
16DIMMsXXXXXXXXXXXXXXXX
Thefollowingsectionexplainsthememorymoduleinstallationrulesinindependentmode,mirroringmode,
sparingmode,andlockstepmode.
Memorymoduleinstallationorderinindependentmode
Inindependentmode,theRASfeaturesarenotavailable.ForinformationabouttheRASfeatures,referto
therelatedsectionin“Features”onpage8.
Note:Allmemorymodulestobeinstalledmustbethesametype(LVRDIMMorRDIMM).Itisalso
recommendedthatallmemorymoduleshavethesamefrequency,voltage,andnumberofranks.
Thefollowingtableexplainsthememorymoduleinstallationorderforserversthathaveonlyone
microprocessor(CPU1)installed.
Table4.Memorymoduleinstallationorderinindependentmodeforserverswithonemicroprocessor
CPU1DIMM
A1A2B1B2
C1C2
D1D2
DIMM
installationorder
1
5
263
7
48
Thefollowingtableexplainsthememorymoduleinstallationorderforserversthathavetwomicroprocessors
(CPU1andCPU2)installed.
Table5.Memorymoduleinstallationorderinindependentmodeforserverswithtwomicroprocessors
CPU1DIMMCPU2DIMM
A1A2B1B2
C1C2
D1D2A1A2B1B2
C1C2
D1D2
DIMM
installationorder
19311
5
13
7
15210412614816
Memorymoduleinstallationorderinmirroringmode
Inmirroringmode,theservermaintainstwoidenticalcopiesofalldatainmemoryandtheRASfeaturesare
available.ForinformationabouttheRASfeatures,refertotherelatedsectionin“Features”onpage8.
Note:Allmemorymodulestobeinstalledmustbethesametype(LVRDIMMorRDIMM).Itisalso
recommendedthatallmemorymoduleshavethesamefrequency,voltage,andnumberofranks.
Thefollowingtableexplainsthememorymoduleinstallationorderforserversthathaveonlyone
microprocessor(CPU1)installed.
Table6.Memorymoduleinstallationorderinmirroringmodeforserverswithonemicroprocessor
CPU1DIMM
A1A2B1B2
C1C2
D1D2
DIMM
installationorder
1
5
263
7
48
Chapter6.Replacinghardware83