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Installation order: Memory Mode with four processors

Memory module installation order for Memory Mode with four processors installed in the compute node.

The following tables show the DIMM population sequence for independent Memory Mode when four processors are installed.

Note
When adding one or more DIMMs during a memory upgrade, you might need to move other DIMMs that are already installed to new locations.
Table 1. Memory Mode with four processors (Processors 1 and 2)

D: DRAM DIMMs with 16 GB or larger capacity.

P: Only DC Persistent Memory Module (DCPMM) can be installed on the corresponding DIMM slots.

ConfigurationProcessor 1Processor 2
123456 789101112131415161718 192021222324
8 DCPMMs and 24 DIMMsDDDP PDDDDDDP PDDD
16 DCPMMs and 24 DIMMsD DPDP PDPD DD DPDP PDPD D
24 DCPMMs and 24 DIMMsDPDPDP PDPDPDDPDPDP PDPDPD
8 DCPMMs and 16 DIMMsP D D   D D PP D D   D D P
Note
8 DCPMMs and 16 DIMMs: one DIMM per processor channel configuration.

Related DIMM population sequences for four processor systems:

To continue populating processor 3 and 4 DIMMs for system, see Table 2.

Table 2. Memory Mode with four processors (Processors 3 and 4)

D: DRAM DIMMs with 16 GB or larger capacity.

P: Only DC Persistent Memory Module (DCPMM) can be installed on the corresponding DIMM slots.

ConfigurationProcessor 3Processor 4
252627282930 313233343536373839404142 434445464748
8 DCPMMs and 24 DIMMsDDDP PDDDDDDP PDDD
16 DCPMMs and 24 DIMMsD DPDP PDPD DD DPDP PDPD D
24 DCPMMs and 24 DIMMsDPDPDP PDPDPDDPDPDP PDPDPD
8 DCPMMs and 16 DIMMsP D D   D D PP D D   D D P
Note
8 DCPMMs and 16 DIMMs: one DIMM per processor channel configuration.

Related DIMM population sequences for four processor systems:

To continue populating processor 1 and 2 DIMMs for system, see Table 1.

Table 3. Supported DCPMM capacity in Memory Mode with four processors
Total DCPMMsTotal DIMMsProcessor Family128 GB DCPMM256 GB DCPMM512 GB DCPMM
824L √√
M √√
Other √ 
1624L√√√
M√√ 
Other√  
2424L√√√
M√√ 
Other√  
816L√√√
M√√√
Other√√