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Installation order: memory mirroring with four processors
Memory module installation order for memory mirroring with four processors installed in the server.
The following tables show the DIMM population sequence for memory mirroring when four processors are
installed.
• Processors 1 and 2 are installed on the system board.
• Processors 3 and 4 are installed in the processor and memory expansion tray.
Note: When adding one or more DIMMs during a memory upgrade, you might need to remove some DIMMs
that are already installed to new locations.
Table 48. Memory mirroring with four processors (Processors 1 and 2)
Total
DIMMs 1
2
3
4
8
10
3
12
3
14
3
16
1
3
18
1
3
20
1
3
22
1
3
24
3
4
26
3
4
28
3
4
30
3
4
32
1
2
3
4
34
1
2
3
4
36
1
2
3
4
38
1
2
3
4
40
1
2
3
4
42
1
2
3
4
44
1
2
3
4
48
Related DIMM population sequences for four processor systems:
• To continue populating processor 3 and 4 DIMMs, see
(Processor 3 and 4)" on page
ThinkSystem SR850 Setup Guide
68
Processor 1
5
6
7
8
9
10 11 12
8
10
8
10
5
8
10
5
8
10
5
8
10
5
8
10
5
8
10
5
8
10
5
8
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
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
5
6
7
8
9
10 11 12
69.
Processor 2
13 14 15 16 17 18
12
15
17
12
15
17
12
15
17
12
13
15
17
12
13
15
17
13
15
17
15 16 17 18
15 16 17 18
15 16 17 18
15 16 17 18
13 14 15 16 17 18
13 14 15 16 17 18
13 14 15 16 17 18
13 14 15 16 17 18
13 14 15 16 17 18
13 14 15 16 17 18
Table 49 "Memory mirroring with four processors
19 20 21 22 23 24 DIMMs
20
22
20
22
20
22
20
22
24
20
22
20
22
20
22
20
22
24
20
22
24
20
22
24
19 20 21 22
19 20 21 22
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
19 20 21 22 23 24
19 20 21 22 23 24
19 20 21 22 23 24
Total
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
42
44
48
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