Memory Installation Guidelines; Memory Installation Positions - Huawei FusionServer Pro CH121 V5 User Manual

FusionServer Pro CH121 V5 Compute Node
User Guide
Parameter
l a: If the Cascade Lake processor is used, the rated speed and maximum operating speed
l b: The maximum number of DDR4 memory modules is based on dual-processor
l c: The maximum DDR4 memory capacity varies depending on the processor type. The

2.3.4 Memory Installation Guidelines

l
l

2.3.5 Memory Installation Positions

A CH121 V5 supports a maximum of 24 DDR4 memory modules. Balanced memory
configuration is recommended for optimal memory performance.
Issue 06 (2019-08-10)
of the RDIMM can reach 2933 MT/s. If the Skylake processor is used, the rated speed
and maximum operating speed of a DDR4 memory module can reach 2666 MT/s only.
configuration. The value is halved for a server with only one processor.
value listed in this table is based on the assumption that twenty-four 128 GB DDR4
memory modules are configured.
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.
Observe the following when configuring DDR4 memory modules in specific operating
mode:
– Memory sparing mode
Comply with the general installation guidelines.
n
Each memory channel must have a valid online spare configuration.
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The channels can have different online spare configurations.
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Each populated channel must have a spare rank.
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– Memory mirroring mode
Comply with the general installation guidelines.
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Install memory modules for channels 1 and 2 or channels 3 and 4. The
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memory modules installed must be identical in size and organization.
For a multi-processor configuration, each processor must have a valid memory
n
mirroring configuration.
– Memory scrubbing mode
Comply with the general installation guidelines.
n
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Specifications
2 Hardware Description
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