DC Persistent Memory Module (DCPMM) installation order

This section contains information of how to install DC Persistent Memory Module (DCPMM) and DRAM DIMMs.

For more information about the processors compatibility, see Lenovo ServerProven website.

To install DC Persistent Memory Module (DCPMM), refer to the following combinations:

DCPMM installation order

Note: Before installing DCPMM, refer to Memory configuration and Configure DC Persistent Memory Module (DCPMM) for the requirements.

DCPMMs shall only be installed on DIMM3, DIMM6, DIMM11 and DIMM14.

Table 2. DCPMM population sequence - App direct mode
DCPMM population sequence - App direct mode
Note:

D1: It represents RDIMMs (DIMM density ≥16GB) can be installed on the corresponding DIMM slots.

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

Operation mode Configuration Processor 1 Processor 2
DIMM slot DIMM slot
8 7 6 5 4 3 2 1 16 15 14 13 12 11 10 9
App direct mode (not interleaved) 1 AEP and 12 DIMMs D1 D1 P D1 D1 D1 D1 D1 D1 D1 D1 D1 D1
App direct mode + Mirroring mode (not interleaved) 1 AEP and 12 DIMMs D1 D1 P D1 D1 D1 D1 D1 D1 D1 D1 D1 D1
App direct mode (not interleaved) 2 AEPs and 12 DIMMs D1 D1 P D1 D1 D1 D1 D1 D1 P D1 D1 D1 D1
App direct mode + Mirroring mode (not interleaved) 2 AEPs and 12 DIMMs D1 D1 P D1 D1 D1 D1 D1 D1 P D1 D1 D1 D1
App direct mode (interleaved or not interleaved) 4 AEPs and 12 DIMMs D1 D1 P D1 D1 P D1 D1 D1 D1 P D1 D1 P D1 D1
App direct mode + Mirroring mode (interleaved or not interleaved) 4 AEPs and 12 DIMMs D1 D1 P D1 D1 P D1 D1 D1 D1 P D1 D1 P D1 D1
Table 3. DCPMM population sequence - Memory mode
DCPMM population sequence - Memory mode
Note:

D2: It represents RDIMMs (DIMM density =16GB or 32GB) can be installed on the corresponding DIMM slots.

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

Operation mode Configuration Processor 1 Processor 2
DIMM slot DIMM slot
8 7 6 5 4 3 2 1 16 15 14 13 12 11 10 9
Memory mode 4 AEPs and 12 DIMMs D2 D2 P D2 D2 P D2 D2 D2 D2 P D2 D2 P D2 D2
Table 4. DCPMM population sequence - Mix memory mode
DCPMM population sequence - Mix memory mode
Note:

D3: It represents RDIMMs (DIMM density ≥16GB, no 3DS LRDIMM) can be installed on the corresponding DIMM slots.

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

Operation mode Configuration Processor 1 Processor 2
DIMM slot DIMM slot
8 7 6 5 4 3 2 1 16 15 14 13 12 11 10 9
Mix memory mode (interleaved or not interleaved) 4 AEPs and 12 DIMMs D3 D3 P D3 D3 P D3 D3 D3 D3 P D3 D3 P D3 D3