Lenovo ThinkSystem SR950 Setup Manual page 196

DCPMM Installation order: Mixed Memory mode with two processors
When implementing Mixed Memory mode, any supported DIMMs in any capacity can be installed.
When two processors are installed in the server:
• Processors 1 and 2 are installed in the lower system board of the lower compute tray.
Several configurations are supported with implementing Mixed Memory mode with six 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 180. Mixed Memory mode with 6 DCPMMs and 6 DRAM DIMMs per processor (2 processors)
In the table below:
• P = DCPMM
• D = DRAM DIMM
Processor 1
1 2 3 4 5
D P D P D
4 DCPMMs/ 6 DRAM DIMMs per processor
Table 181. Mixed Memory mode with 4 DCPMMs and 6 DRAM DIMMs per processor (2 processors)
In the table below:
• P = DCPMM
• D = DRAM DIMM
Processor 1
1 2 3 4 5
D D P D
2 DCPMMs/ 6 DRAM DIMMs per processor
Note: Only RDIMMs are recommended for this configuration
Table 182. Mixed Memory mode with 2 DCPMMs and 6 DRAM DIMMs per processor (2 processors)
In the table below:
• P = DCPMM
• D = DRAM DIMM
Processor 1
1 2 3 4 5 6
D D D P
ThinkSystem SR950 Setup Guide
192
6 7 8 9 10 11
P P D P D P
6 7 8 9 10 11
P P D P D
7 8 9 10 11
P D D
12 13 14 15 16 17 18
D D P D P
12 13 14 15 16 17 18
D D D P
12 13 14 15 16 17 18
D D D
Processor 2
19 20 21 22
D P P D P D
Processor 2
19 20 21 22
D P P D P D
Processor 2
19 20 21 22 23
D P P D D
23 24
P D
23 24
D
24
D