Lenovo ThinkServer TD350 - Page 99

Thefollowingtableexplainsthememorymoduleinstallationrulesforserversthathavetwomicroprocessors
(CPU1andCPU2)installed.The“X”markindicatesthememoryslotsintowhichthememorymodules
shouldbeinstalledindifferentsituations.
Note:Ensurethatyouobservetheinstallationguidelinesatthebeginningofthistopic.
Figure47.CPU1DIMMsandCPU2DIMMs
Table4.Memorymoduleinstallationrulesforserverswithtwomicroprocessors
CPU1DIMMCPU2DIMM
A1A2B1B2
C1C2
D1D2A1A2B1B2
C1C2
D1D2
4DIMMsXXXX
8DIMMsXXXXXXXX
16DIMMsXXXXXXXXXXXXXXXX
Thefollowingsectionexplainsthememorymoduleinstallationrulesinindependentmode,mirroringmode,
sparingmode,andlockstepmode.
Memorymoduleinstallationorderinindependentmode
Inindependentmode,theRASfeaturesarenotavailable.ForinformationabouttheRASfeatures,referto
therelatedsectionin“Features”onpage7
.
Note:Allmemorymodulestobeinstalledmustbethesametype(LRDIMMorRDIMM).Itisalso
recommendedthatallmemorymoduleshavethesamefrequency,voltage,andnumberofranks.
Thefollowingtableexplainsthememorymoduleinstallationorderforserversthathaveonlyone
microprocessor(CPU1)installed.
Table5.Memorymoduleinstallationorderinindependentmodeforserverswithonemicroprocessor
CPU1DIMM
A1A2B1B2
C1C2
D1D2
DIMM
installationorder
1
5
263
7
48
Chapter6.Replacinghardware85