Huawei FusionServer Pro 2288X V5 - Page 28

NO TICE
● A server must use the same model of DDR4 DIMMs, and all the DIMMs operate
at the same speed, which is the smallest value of:
● Memory speed supported by a processor
● Maximum operating speed of a DIMM
● The DDR4 DIMMs of
dierent types (RDIMM and LRDIMM) and specications
(capacity, bit width, rank, and height) cannot be used together.
● Contact your local Huawei sales representative or use the Intelligent
Computing Compatibility Checker to determine the components to be used.
● 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 Intelligent Computing 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.
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.
A quad-rank LRDIMM generates the same electrical load as a single-rank RDIMM on a
memory bus.
FusionServer Pro 2288X V5 Server
User Guide 2 Hardware Description
Issue 04 (2020-06-05) Copyright © Huawei Technologies Co., Ltd. 20