Huawei FusionServer Pro XH321 V5 - Page 24

● The memory can be used with Intel
®
Xeon
®
Scalable Skylake and Cascade
Lake processors. The maximum memory capacity supported varies depending
on the processor model.
– Skylake processors
▪ M processors: 1.5 TB/socket
▪ Other processors: 768 GB/socket
– Cascade Lake processors
▪ L processors: 4.5 TB/socket
▪ M processors: 2 TB/socket
▪ Other processors: 1 TB/socket
● The total memory capacity is the sum of the capacity of all DDR4 DIMMs.
NO TICE
The total memory capacity cannot exceed the maximum memory capacity
supported by the CPUs.
● Use the Computing Product Compatibility Checker to determine the
capacity type of a single DIMM.
● The maximum number of DIMMs supported by a server varies depending on
the CPU type, memory type, rank quantity, and operating voltage.
NO TE
Each memory channel supports a maximum of 8 ranks. The number of DIMMs
supported by each channel varies depending on the number of ranks supported by
each channel:
Number of DIMMs supported by each channel ≤ Number of ranks supported by each
memory channel/Number of ranks supported by each DIMM
● A memory channel supports more than eight ranks for LRDIMMs.
NO TE
A quad-rank LRDIMM generates the same electrical load as a single-rank RDIMM on a
memory bus.
Table 2-5 DDR4 memory specications
Parameter
Specications
Maximum capacity per DDR4 DIMM (GB) 64
Rated speed (MT/s) 2933
Operating voltage (V) 1.2
Maximum number of DDR4 DIMMs in a node
a
16
FusionServer Pro XH321 V5 Server Node
Maintenance and Service Guide 2 Hardware Description
Issue 17 (2021-03-09) Copyright © Huawei Technologies Co., Ltd. 15