Lenovo ThinkSystem SR950 Setup Manual page 68

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Installation order: independent memory mode with two processors
Memory module installation order for independent (non-mirroring) memory mode with two processors
installed in the server.
The following table shows the DIMM population sequence for independent memory mode when two
processors are installed.
• Processors 1 and 2 are installed in the lower system board of the lower compute tray.
Note: When adding one or more DIMMs during a memory upgrade, you might need to move other DIMMs
that are already installed to new locations.
Table 44. Independent mode with two processors, 2 to 24 total DIMMs installed in server
Total
DIMMs 1
2
3
4
2
3
4
5
6
3
7
3
8
3
9
3
10
1
3
11
1
3
12
1
3
13
1
3
14
3
4
15
3
4
16
1
3
17
1
3
18
3
4
19
3
4
20
1
2
3
4
21
1
3
4
22
1
2
3
4
23
1
2
3
4
24
ThinkSystem SR950 Setup Guide
64
Processor 1
5
6
7
8
9
10 11 12
8
5
8
5
8
5
8
10
5
8
10
5
8
10
5
8
10
5
8
10
5
8
10
5
8
10
5
8
10
5
7
8
9
10
5
7
8
9
10
5
6
7
8
9
10
5
6
7
8
9
10
5
7
8
9
10 11 12
5
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
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 DIMMs
17
17
17
17
15
17
12
15
17
12
15
17
12
15
17
12
13
15
17
13
15
17
13
15
17
13
15
17
15 16 17 18 19 20 21 22
15 16 17 18 19 20 21 22
13
15
17
13
15
17
15 16 17 18 19 20 21 22 23 24
13
15
17
13
15 16 17 18 19 20 21 22 23 24
13
15 16 17 18 19 20 21 22 23 24
13 14 15 16 17 18 19 20 21 22 23 24
Total
20
20
20
20
20
22
20
22
20
22
20
22
20
22
24
20
22
24
20
22
24
20
22
24
19 20 21 22
19 20 21 22
19 20 21 22 23 24
19 20 21 22 23 24
19 20 21 22 23 24
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24

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