Lenovo ThinkSystem SR950 Setup Manual page 165

Installation order: memory sparing with eight processors
Memory module installation order for memory sparing with eight processors installed in the server.
The following table shows the DIMM population sequence for memory sparing when eight 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.
• Processors 5 and 6 are installed in the lower system board of the upper compute tray.
• Processors 7 and 8 are installed in the upper system board of the upper compute tray.
Note: An even number of DIMMs is required for memory sparing.
Table 136. Memory sparing with eight processors (Processors 1 and 2, 16 to 24 total DIMMs installed in server)
Total
DIMMs 1 2 3 4
16
18
20
22
24
Related DIMM population sequences for eight processor systems:
• Processor 1 and 2 DIMM population sequences:
– Table 137 "Memory sparing with eight processors (Processors 1 and 2, 26 to 48 total DIMMs installed
in server)" on page 162
– Table 138 "Memory sparing with eight processors (Processors 1 and 2, 50 to 72 total DIMMs installed
in server)" on page 163
– Table 139 "Memory sparing with eight processors (Processors 1 and 2, 74 to 96 total DIMMs installed
in server)" on page 164
• To continue populating DIMMs for a system with 16 to 24 DIMMs:
– Table 140 "Memory sparing with eight processors (Processors 3 and 4, 16 to 24 total DIMMs installed
in server)" on page 165
– Table 144 "Memory sparing with eight processors (Processors 5 and 6, 16 to 24 total DIMMs installed
in server)" on page 169
– Table 148 "Memory sparing with eight processors (Processors 7 and 8, 16 to 24 total DIMMs installed
in server)" on page 173
Processor 1
5 6 7 8 9 10 11 12
7 8
5 6 7 8
5 6 7 8
5 6 7 8
5 6 7 8
Processor 2
13 14 15 16 17 18 19 20 21 22 23 24 DIMMs
19 20
19 20
19 20
17 18 19 20
17 18 19 20
Chapter 3
Total
16
18
20
22
24
.
Server hardware setup
161