Lenovo ThinkSystem SR860 Setup Manual page 71

Installation order: independent memory mode with four processors
Memory module installation order for independent (non-mirroring) memory mode with four processors
installed in the server.
The following tables show the DIMM population sequence for independent memory mode 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 42. Independent mode with four processors (Processor 1 and 2, 4 to 24 total DIMMs installed in server)
Total
DIMMs 1 2 3 4
4
5
6
7
8
9
10
11
12
3
13
3
14
3
15
3
16
3
17
3
18
3
19
3
20
1 3
21
1 3
22
1 3
23
1 3
24
Related DIMM population sequences for four processor systems:
• Processor 1 and 2 DIMM population sequence for 25 to 48 DIMMs, see
four processors (Processor 1 and 2, 25 to 48 total DIMMs installed in server)" on page
• To continue populating processor 3 and 4 DIMMs for a system with 4 to 24 DIMMs, see
"Independent mode with four processors (Processor 3 and 4, 4 to 24 total DIMMs installed in server)" on
page 65.
Processor 1
5 6 7 8 9 10 11 12
8
5 8
5 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 8 10
5 8 10
5 8 10
5 8 10
5 8 10
5 8 10
5 8 10
5 8 10
Processor 2
13 14 15 16 17 18
17
17
17
17
17
17
17
17
15 17
15 17
15 17
12 15 17
12 15 17
12 15 17
12 15 17
12 15 17
12 13 15 17
12 13 15 17
12 13 15 17
Table 43 "Independent mode with
19 20 21 22 23 24 DIMMs
20
20
20
20
20
20
20 22
20 22
20 22
20 22
20 22
20 22
20 22
20 22
20 22 24
20 22 24
20 22 24
20 22 24
20 22 24
20 22 24
20 22 24
64.
Table 44
.
Chapter 3 Server hardware setup
Total
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
63