Cisco UCS C890 M5, Инструкция по эксплуатации

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Contents Page 51
Legend
DDR4 Type Capacity
DRAM1 RDIMM
3DS
LRDIMM
3DS
Refer to Validation
Matrix (DDR4 DIMMs
validated with DCPMM)
on the next page.
RDIMM LRDIMM
DRAM2 RDIMM - -
DRAM3 RDIMM
3DS
LRDIMM -
RDIMM
Note : DDR4 single rank DIMMs based on x8 devices are not compatible with any DCPMM
operating mode.
Legend
Capacity
DCPMM Any Capacity (Uniformly for all channels for a given configuration)
1. For MM, general NM/FM ratio is between 1:4 and 1:16. Excessive capacity for FM can
be used for AD. (NM = Near Memory; FM = Far Memory)
2. For each individual population, rearrangements between channels are allowed as long
as the resulting population is compliant with the X11 memory population rules for the
2nd Gen Intel® Xeon® Platinum 82XX processors.
3. For each individual population, use the same DDR4 DIMM in all slots.
4. For each individual population, sockets are normally symmetric with exceptions for 1
DCPMM per socket and 1 DCPMM per node case.
5. No mixing of DCPMM and NVMDIMMs within the same platform is allowed.
6. This DCPMM population guide targets a balanced DCPMM-to-DRAM-cache ratio in MM
and MM + AD modes.