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 in the lower system board of the lower compute tray.
• Processors 3 and 4 are installed in the upper system board of the lower compute tray or in the upper
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 49. Independent mode with four processors (Processors 1 and 2, 4 to 24 total DIMMs installed in server)
Total Processor 1 Processor 2 Total
DIMMs 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 8 20 4
5 5 8 20 5
6 5 8 17 20 6
7 5 8 17 20 7
8
5 8 17 20 8
9
5 8 10 17 20 9
10
5 8 10 17 20 22 10
11 5 8 10 17 20 22 11
12 5 8 10 17 20 22 12
13 3 5 8 10 17 20 22 13
14 3 5 8 10 15 17 20 22 14
15 3 5 8 10 15 17 20 22 15
16 3 5 8 10 15 17 20 22 16
17 3 5 8 10 12 15 17 20 22 17
18 3 5 8 10 12 15 17 20 22 24 18
19 3 5 8 10 12 15 17 20 22 24 19
20 3 5 8 10 12 15 17 20 22 24 20
21 1 3 5 8 10 12 15 17 20 22 24 21
22 1 3 5 8 10 12 13 15 17 20 22 24 22
23 1 3 5 8 10 12 13 15 17 20 22 24 23
24 1 3 5 8 10 12 13 15 17 20 22 24 24
Related DIMM population sequences for four processor systems:
• Processor 1 and 2 DIMM population sequences for 25 to 48 DIMMs, see Table 50 “Independent mode
with four processors (Processors 1 and 2, 25 to 48 total DIMMs installed in server)” on page 70.
• To continue populating processor 3 and 4 DIMMs for a system with 4 to 24 DIMMs, see Table 51
“Independent mode with four processors (Processors 3 and 4, 4 to 24 total DIMMs installed in server)” on
page 71.
Chapter 3. Server hardware setup 69
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