Lenovo ThinkSystem SR950 Setup Manual page 144

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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
DIM-
Ms
1
2
3
4
4
6
8
10
12
3
4
14
3
4
16
3
4
18
3
4
20
1
2
3
4
22
1
2
3
4
24
ThinkSystem SR950 Setup Guide
140
Processor 1
5
6
7
8
9
10 11 12
7
8
5
6
7
8
5
6
7
8
5
6
7
8
9
10
5
6
7
8
9
10
5
6
7
8
9
10
5
6
7
8
9
10
5
6
7
8
9
10 11 12
5
6
7
8
9
10 11 12
5
6
7
8
9
10 11 12
5
6
7
8
9
10 11 12
Processor 2
13 14 15 16 17 18
19 20 21 22 23 24
19 20
19 20
17 18
19 20
17 18
19 20
17 18
19 20 21 22
17 18
19 20 21 22
15 16 17 18
19 20 21 22
15 16 17 18
19 20 21 22
15 16 17 18
19 20 21 22 23 24
15 16 17 18
19 20 21 22 23 24
13 14 15 16 17 18
19 20 21 22 23 24
Total
DIMMs
4
6
8
10
12
14
16
18
20
22
24

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