Lenovo ThinkSystem SR950, Setup Manual

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DCPMM Installation order: Memory mode with eight processors
When implementing Memory mode, any supported DIMMs in any capacity can be installed. However, you
should consider using DIMMs that are greater than 32 GB.
When eight 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.
• Processors 5 and 6 are installed in the lower system board of the upper compute tray.
• Processors 7 and 8 are installed in the upper system board of the upper compute tray.
Several configurations are supported with implementing Memory mode with eight 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 211. Memory mode with 6 DCPMMs and 6 DRAM DIMMs per processor (8 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
Processor 3 Processor 4
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
Processor 5 Processor 6
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
Processor 7 Processor 8
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 212. Memory mode with 4 DCPMMs and 6 DRAM DIMMs per processor (8 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
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ThinkSystem SR950 Setup Guide