Lenovo ThinkSystem SR950 Setup Manual page 198

DCPMM Installation order: Mixed Memory mode with four processors
When implementing Mixed Memory mode, any supported DIMMs in any capacity can be installed.
When four processors are installed in the server:
• Processors 1 and 2 are installed in the lower system board of the lower compute tray.
• Processors 3 and 4 are installed in the upper 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 184. Mixed Memory mode with 6 DCPMMs and 6 DRAM DIMMs per processor (4 processors)
In the table below:
• P = DCPMM
• D = DRAM DIMM
Processor 1
1 2 3 4 5
D P D P D
Processor 3
1 2 3 4 5
D P D P D
4 DCPMMs/ 6 DRAM DIMMs per processor
Table 185. Mixed Memory mode with 4 DCPMMs and 6 DRAM DIMMs per processor (4 processors)
In the table below:
• P = DCPMM
• D = DRAM DIMM
Processor 1
1 2 3 4 5
D D P D
Processor 3
1 4 5
2 3
D D P D
2 DCPMMs/ 6 DRAM DIMMs per processor
Note: Only RDIMMs are recommended for this configuration
Table 186. Mixed Memory mode with 2 DCPMMs and 6 DRAM DIMMs per processor (4 processors)
In the table below:
ThinkSystem SR950 Setup Guide
194
6 7 8 9 10 11
P P D P D P
6 7 8 9 10 11
P P D P D P
6 7 8 9 10 11
P P D P D
7 11
6 8 9 10
P P D P D
12 13 14 15 16 17 18
D D P D P
12 13 14 15 16 17 18
D D P D P
12 13 14 15 16 17 18
D D D P
14 15 17 18
12 13 16
D D D P
Processor 2
19 20 21 22
D P P D P D
Processor 4
19 20 21 22
D P P D P D
Processor 2
19 20 21 22
D P P D P D
Processor 4
19 20 21 22
D P P D P D
23 24
P D
23 24
P D
23 24
D
23 24
D