Lenovo ThinkSystem SR950 - Page 144

Installation order: memory sparing with two processors
Memory module installation order for memory sparing with two processors installed in the server.
The following table shows the DIMM population sequence for memory sparing when two processors are
installed.
• Processors 1 and 2 are installed in the lower system board of the lower compute tray.
Note: An even number of DIMMs is required for memory sparing.
Table 115. Memory sparing with two processors, 4 to 24 total DIMMs installed in server
Total Processor 1 Processor 2 Total
DIM-
Ms
1 2
3
4
5 6
7
8 9 10
11 12
13
14
15 16
17
18 19 20
21 22
23
24
DIMMs
4 7 8 19 20 4
6
5 6 7 8 19 20 6
8
5 6 7 8 17 18 19 20 8
10
5 6 7 8 9 10 17 18 19 20 10
12
5 6 7 8 9 10 17 18 19 20 21 22 12
14 3 4 5 6 7 8 9 10 17 18 19 20 21 22 14
16 3 4 5 6 7 8 9 10 15 16 17 18 19 20 21 22 16
18 3 4 5 6 7 8 9 10 11 12 15 16 17 18 19 20 21 22 18
20 3 4 5 6 7 8 9 10 11 12 15 16 17 18 19 20 21 22 23 24 20
22 1 2 3 4 5 6 7 8 9 10 11 12 15 16 17 18 19 20 21 22 23 24 22
24 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 24
140 ThinkSystem SR950 Setup Guide