Lenovo ThinkSystem SR950 - 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 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
D P D P D P P D P D P D D P D P D P P 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 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
D D P D P P D P D D D D P D P P D P D 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 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
D D D P P D D D D D D P P D D D
192 ThinkSystem SR950 Setup Guide