Installation order: memory sparing with three processors
Memory module installation order for memory sparing with three processors installed in the server.
The following tables show the DIMM population sequence for memory sparing when three processors are
installed.
• Processors 1 and 2 are installed in the lower system board of the lower compute tray.
• Processor 3 is installed in the upper system board of the lower compute tray or in the upper compute tray
(processor slot 4)
Note: An even number of DIMMs is required for memory sparing.
Table 116. Memory sparing with three processors (Processors 1 and 2, 6 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
6
7 8 19 20 6
8
5 6 7 8 19 20 8
10
5 6 7 8 17 18 19 20 10
12
5 6 7 8 17 18 19 20 12
14 5 6 7 8 9 10 17 18 19 20 14
16 5 6 7 8 9 10 17 18 19 20 21 22 16
18
5 6 7 8 9 10 17 18 19 20 21 22 18
20 3 4 5 6 7 8 9 10 17 18 19 20 21 22 20
22 3 4 5 6 7 8 9 10 15 16 17 18 19 20 21 22 22
24 3 4 5 6 7 8 9 10 15 16 17 18 19 20 21 22 24
Related DIMM population sequences for three processor systems:
• Processor 1 and 2 DIMM population sequences for 26 to 48 DIMMs, see Table 117 “Memory sparing with
three processors (Processors 1 and 2, 26 to 48 total DIMMs installed in server)” on page 142.
• To continue populating processor 3 DIMMs for a system with 6 to 24 DIMMs, see Table 118 “Memory
sparing with three processors (Processor 3, 6 to 24 total DIMMs installed in server)” on page 143.
Chapter 3. Server hardware setup 141
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