Lenovo 7X19 Setup Manual page 92

Mixed Memory Mode
In this mode, some percentage of DCPMM capacity is directly accessible to specific applications (App
Direct), while the rest serves as system memory. The App Direct part of DCPMM is displayed as persistent
memory, while the rest of DCPMM capacity is displayed as system memory. DRAM DIMMs act as cache in
this mode.
Installation order: Mixed Memory Mode with two processors
Memory module installation order for DCPMM Mixed Memory mode with two installed processors.
Table 68. Memory population in Mixed Memory Mode with two processors
• D: DRAM DIMMs of 16 GB or larger capacity
Note: 3DS LRDIMMs are not supported in this mode.
• P: DC Persistent Memory Module (DCPMM)
Configuration
1 2 3
4 DCPMMs D
P
with 8 DIMMs
D D
4 DCPMMs
with 12 DIMMs
8 DCPMMs D D
with 12 DIMMs
12 DCPMMs D D
P
with 12 DIMMs
Table 69. Supported DCPMM capacity in Mixed Memory Mode with two processors
Total Total
Processor Family
PMMs DIMMs
4 8
4 12
8 12
12 12
ThinkSystem SR850 Setup Guide
84
Processor 1
4 5 6 7 8 9 10 11 12
D D
D D
P P
D D
P P P P
D D
P P P P
128 GB DCPMM
L
M
Other
L
M
Other
L
M
Other
L
M
Other
13 14 15 16 17 18
D D
P P
D D D D
D D D D
D D D D
P P
256 GB DCPMM
√
√
√
√
√
√
√
√
√
√
√
√
Processor 2
19 20 21 22 23 24
D D
D D
P P
D D
P P P P
D D
P P P P
512 GB DCPMM
√ √
√ √
√
√ √
√ √
√
√ √
√
√
√ √
√
√
D
P
D D
D D
D D
P