Lenovo ThinkSystem SR950 Setup Manual page 153

Installation order: memory sparing with six processors
Memory module installation order for memory sparing with six processors installed in the server.
The following table shows the DIMM population sequence for memory sparing when six 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.
• Processor 5 is installed in the lower system board of the upper compute tray.
• Processor 6 is installed in the upper system board of the upper compute tray (processor slot 7).
Note: An even number of DIMMs is required for memory sparing.
Table 124. Memory sparing with six processors (Processors 1 and 2, 12 to 24 total DIMMs installed in server)
Total
DIMMs 1 2 3 4
12
14
16
18
20
22
24
Related DIMM population sequences for six processor systems:
• Processor 1 and 2 DIMM population sequences:
– Table 125 "Memory sparing with six processors (Processors 1 and 2, 26 to 48 total DIMMs installed in
server)" on page 150
– Table 126 "Memory sparing with six processors (Processors 1 and 2, 50 to 72 total DIMMs installed in
server)" on page 151
• To continue populating DIMMs for a system with 16 to 24 DIMMs:
– Table 127 "Memory sparing with six processors (Processors 3 and 4, 12 to 24 total DIMMs installed in
server)" on page 152
– Table 130 "Memory sparing with six processors (Processors 5, 12 to 24 total DIMMs installed in
server)" on page 155
– Table 133 "Memory sparing with six processors (Processor 7 slot, which is actually Processor 6, 12 to
24 total DIMMs installed in server)" on page 158
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
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
17 18 19 20
17 18 19 20
17 18 19 20
17 18 19 20
17 18 19 20
Chapter 3
Total
12
14
16
18
20
22
24
.
Server hardware setup
149