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DCPMM Installation order: Memory mode with four processors

When implementing Memory mode, any supported DIMMs in any capacity can be installed. However, you should consider using DIMMs that are greater than 32 GB.

When four processors are installed in the server:

  • Processors 1 and 2 are installed in the lower system board of the lower compute tray.

  • Processors 3 and 4 are installed in the upper system board of the lower compute tray.

Several configurations are supported with implementing Memory mode with four processors:

  • 6 DCPMMs/6 DRAM DIMMs per processor

  • 4 DCPMMs/6 DRAM DIMMs per processor

  • 2 DCPMMs/6 DRAM DIMMs per processor

  • 2 DCPMMs/4 DRAM DIMMs per processor

6 DCPMMs/ 6 DRAM DIMMs per processor​

Table 1. Memory mode with 6 DCPMMs and 6 DRAM DIMMs per processor (4 processors).
In the table below:

  • P = DCPMM

  • D = DRAM DIMM

Processor 1Processor 2
123456 789101112131415161718 192021222324
DPDPDP PDPDPDDPDPDP PDPDPD
Processor 3Processor 4
123456 789101112131415161718 192021222324
DPDPDP PDPDPDDPDPDP PDPDPD

4 DCPMMs/ 6 DRAM DIMMs per processor​

Table 2. Memory mode with 4 DCPMMs and 6 DRAM DIMMs per processor (4 processors).
In the table below:

  • P = DCPMM

  • D = DRAM DIMM

Processor 1Processor 2
123456 789101112131415161718 192021222324
D DPDP PDPD DD DPDP PDPD D
Processor 3Processor 4
123456 789101112131415161718 192021222324
D DPDP PDPD DD DPDP PDPD D

2 DCPMMs/ 8 DRAM DIMMs per processor​

Table 3. Memory mode with 2 DCPMMs and 8 DRAM DIMMs per processor (4 processors).
In the table below:

  • P = DCPMM

  • D = DRAM DIMM

Processor 1Processor 2
123456 789101112131415161718 192021222324
P DDDD DDDD PP DDDD DDDD P
Processor 3Processor 4
123456 789101112131415161718 192021222324
P DDDD DDDD PP DDDD DDDD P

2 DCPMMs/ 6 DRAM DIMMs per processor​

Table 4. Memory mode with 2 DCPMMs and 6 DRAM DIMMs per processor (4 processors).
In the table below:

  • P = DCPMM

  • D = DRAM DIMM

Note
In this configuration, only RDIMMs are recommended for the DRAM DIMMs.
Processor 1Processor 2
123456 789101112131415161718 192021222324
D D DP PD D DD D DP PD D D
Processor 3Processor 4
123456 789101112131415161718 192021222324
D D DP PD D DD D DP PD D D

2 DCPMMs/ 4 DRAM DIMMs per processor​

Table 5. App Direct mode with 2 DCPMMs and 4 DRAM DIMMs per processor (4 processors).
In the table below:

  • P = DCPMM

  • D = DRAM DIMM

Processor 1Processor 2
123456 789101112131415161718 192021222324
P D D   D D PP D D   D D P
Processor 3Processor 4
123456 789101112131415161718 192021222324
P D D   D D PP D D   D D P