Installation order: Memory Mode with two processors

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

Table 1. Three categories of DIMM
DIMM Category DDR4 Type Capacity
D1 RDIMM All density of DDR4 more than 32 GB
D2 RDIMM 16 GB or 32 GB RDIMM

The following table shows the DIMM population sequence for Memory Mode when two 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 2. Memory Mode with two processors

D1–D2: Refer to Table 1.

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

Configuration Processor 1 Processor 2
1 2 3 4 5 6   7 8 9 10 11 12 13 14 15 16 17 18   19 20 21 22 23 24
4 DCPMMs and 12 DIMMs D2 D2 D2 P   P D2 D2 D2 D2 D2 D2 P   P D2 D2 D2
8 DCPMMs and 12 DIMMs D1   D1 P D1 P   P D1 P D1   D1 D1   D1 P D1 P   P D1 P D1   D1
12 DCPMMs and 12 DIMMs D1 P D1 P D1 P   P D1 P D1 P D1 D1 P D1 P D1 P   P D1 P D1 P D1
4 DCPMMs and 8 DIMMs P   D1   D1       D1   D1   P P   D1   D1       D1   D1   P
Note: 4 DCPMMs and 8 DIMMs: one DIMM per processor channel configuration.
Table 3. Supported DCPMM capacity in Memory Mode with two processors
Total DCPMMs Total DIMMs Processor Family 128 GB DCPMM 256 GB DCPMM 512 GB DCPMM
4 12 L
M
Other  
8 12 L
M  
Other    
12 12 L
M  
Other    
4 8 L
M
Other