Each processor, P0 and P1, has twelve DIMM slots (D0-D11), six on each processor
side. Each DIMM slot supports a single memory channel, for total of twelve DDR5
memory channels per processor (0-11).
Table 9-1 Memory Channels and DIMM Slots for P0 and P1
Memory Channel DIMM Slot
0 D3
1 D1
2 D0
3 D5
4 D4
5 D2
6 D8
7 D10
8 D11
9 D6
10 D7
11 D9
Note:
In single-processor systems, the DIMM slots associated with processor 1
(P1) are nonfunctional and should not be populated with DIMMs.
DIMM Population Scenarios
There are two scenarios in which you are required to populate DIMMs:
• A DIMM fails and needs to be replaced.
Chapter 9
DIMM Population Scenarios
9-2
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