Table 2-7 DDR4 memory specifications
Parameter Specifications
Maximum capacity per DDR4 memory module (GB) 128
Rated speed (MT/s) 2933
Operating voltage (V) 1.2
Maximum number of DDR4 memory modules in a server
a
24
Maximum DDR4 memory capacity of the server (GB)
b
3072
Maximum operating speed
(MT/s)
1DPC
d
2933
c
2DPC
d
2666
l a: The maximum number of DDR4 memory modules is based on dual-processor
configuration. The value is halved for a server with only one processor.
l b: The maximum DDR4 memory capacity varies depending on the processor type. The
value listed in this table is based on the assumption that memory modules are fully
configured.
l c: If the Cascade Lake processor is used, the maximum operating speed of a memory
module can reach 2933 MT/s. If the Skylake processor is used, the maximum operating
speed of a memory module can reach 2666 MT/s only.
l d: 1DPC means 1 DIMM per channel, and 2DPC means 2 DIMMs per channel.
2.4.4 Memory Installation Guidelines
l Observe the following when configuring DDR4 memory modules:
– Install memory modules only when corresponding processors are installed.
– Do not install LRDIMMs and RDIMMs in the same server.
– Install filler memory modules in vacant slots.
l Observe the following when configuring DDR4 memory modules in specific operating
mode:
– Memory sparing mode
n Comply with the general installation guidelines.
n Each memory channel must have a valid online spare configuration.
n The channels can have different online spare configurations.
n Each populated channel must have a spare rank.
– Memory mirroring mode
n Comply with the general installation guidelines.
n Install memory modules for channels 1 and 2 or channels 3 and 4. The
memory modules installed must be identical in size and organization.
n For a multi-processor configuration, each processor must have a valid memory
mirroring configuration.
FusionServer Pro 2288H V5 Server
User Guide
2 Hardware Description
Issue 08 (2019-10-30) Copyright © Huawei Technologies Co., Ltd. 24
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