Lenovo System x3650 M5 - DIMM Installation Sequence

DIMM 3 DIMM 9 DIMM 6 DIMM 12 DIMM 2 DIMM 8 DIMM 5 DIMM 11 DIMM 1 DIMM 7 DIMM 4 DIMM 10
Microprocessor 1
CPU1
DIMM 15 DIMM 21 DIMM 18 DIMM 24 DIMM 14 DIMM 20 DIMM 17 DIMM 23 DIMM 13 DIMM 19 DIMM 16 DIMM 22
Microprocessor 2
CPU2
Figure104.DIMMconnectorslocation
DIMMinstallationsequence
Dependingontheservermodel,theservermaycomewithaminimumofone4GBDIMMinstalledinslot
1.WhenyouinstalladditionalDIMMs,installthemintheordershowninthefollowingtabletooptimize
systemperformance.
Ingeneral,allfourchannelsonthememoryinterfaceforeachmicroprocessorcanbepopulatedinanyorder
andhavenomatchingrequirements.
Table12.NormalmodeDIMMinstallationsequence
Numberofinstalled
microprocessorDIMMconnectorpopulationsequence
Onemicroprocessorinstalled
1,4,9,12,2,5,8,11,3,6,7,10
Twomicroprocessorsinstalled1,13,4,16,9,21,12,24,2,14,5,17,8,20,11,23,3,15,6,18,7,19,10,22
Foroptimalperformance:
Makesureallfourmemorychannelsofeachmicroprocessorarepopulated.Eachmemorychannelsshould
bepopulatedwiththesametypeandamountofmemoryperchannel.Eachmicroprocessorsocketshould
bepopulatedwiththesametypeandamountofmemorypersocket.1DPC(oneDIMMperchannel)or
2DPC(twoDIMMperchannel)memoryconfigurationarerecommended.Unlessthereisaneedformemory
174LenovoSystemx3650M5InstallationandServiceGuide