Dell PowerEdge R920 - Page 45

NOTE: DIMMs populated must be identical for each riser. In the mirroring mode, only one of the two CPUs is
populated.
NOTE: 64GB LRDIMMs are supported by the system.
Table 2. Memory Configurations—Single Riser
Memory Mode System
Capacity (in
GB)
DIMM Size
(in GB)
Number of
DIMMs DIMM Slot Population for CPU 1 ( Riser A and B)
Advanced ECC
Lockstep
2
6 10 4 8 12 1 5 9 3 7 11
32 4 8 X X X X
48 4 12 X X X X X X
64 4 16 X X X X X X X X
64 8 8 X X X X
96 8 12 X X X X X X
128 8 16 X X X X X X X X
192 8 24 X X X X X X X X X X X X
64 16 4 X X X X
96 16 6 X X X X X X
128 16 8 X X X X X X X X
128 32 4 X X X X
192 32 6 X X X X X X
256 32 8 X X X X X X X X
384 32 12 X X X X X X X X X X X X
512 64 8 X X X X
768 64 12 X X X X X X
1024 64 16 X X X X X X X X
1536 64 24 X X X X X X X X X X X X
Optimized
Population
(Independent
Channel)
24 4 6 X X X
32 4 8 X X X X
24 4 6 X X X
32 4 8 X X X X
32 8 4 X X X X
48 8 6 X X X
64 8 8 X X X X
80 8 10 X X X X X
96 16 6 X X X
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