Lenovo ThinkSystem SR630 Maintenance Manual page 172

Table 50. Memory population in App Direct Mode with two processors (CPU 1 and CPU 2) (continued)
8 PMEMs D
and 16
DIMMs
16 PMEMs D
P
and 16
DIMMs
Note: Configurations with an asterisk (*) support the not-interleaved mode only. 100% interleaved mode is
not supported.
Memory Mode
In this mode, PMEMs act as volatile system memory, while DRAM DIMMs act as cache. Ensure that the ratio
of total DRAM DIMM capacity to total PMEM capacity within a processor is between 1:4 and 1:16.
With one processor
Table 51. Memory Mode with one processor (CPU 1)
• D: DRAM DIMM
• P: Persistent Memory Module (PMEM)
Configuration
1
4 PMEMs and 4
P
DIMMs
4 PMEMs and 8 D
DIMMs
8 PMEMs and 8 D
DIMMs
With two processors
Table 52. Memory Mode with two processors (CPU 1 and CPU 2)
• D: DRAM DIMM
• P: Persistent Memory Module (PMEM)
Configura-
tion
1 2
8 PMEMs
P
and 8
DIMMs
8 PMEMs D
and 16
DIMMs
16 PMEMs D
P
and 16
DIMMs
Configura-
tion
17 18
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D D D
P
D D D
P P
2 3 4 5 6
D
P
D D
P
D D
P P P
3 4 5 6 7
D D
P
D D D
P
D D D
P P
19 20 21 22 23
D
P P
D
P P P
DIMM slots
7 8 9 10 11
D D
D D
P P
D D
P P
DIMM slots
8 9 10 11
D
D
P P
D
P P P
DIMM slots
24 25 26 27
D D
P
D D
P P
12 13 14 15
D
P
D D
P
D D
P P P
12 13 14 15
D
P
D D
P
D D
P P
28 29 30 31
D
D
16
P
D
D
16
P
D
D
32