Memory Installation Guidelines - Huawei FusionServer Pro CH242 V5 Technical White Paper

Huawei FusionServer Pro CH242 V5 Compute Node
Technical White Paper
Table 5-3 DDR4 memory specifications
Parameter
Maximum capacity per
DDR4 DIMM (GB)
Rated speed (MT/s)
Rank
Operating voltage (V)
Maximum number of
DDR4 DIMMs in a node
Maximum DDR4
memory capacity of the
node (GB)
Maximum
operating
speed
(MT/s)
● a: The maximum number of DDR4 DIMMs is based on four-processor
● b: The maximum DDR4 memory capacity varies depending on the processor
● c: DPC (DIMM per channel) indicates the number of DIMMs per channel.
● d: If the Cascade Lake processor is used, the maximum operating speed of a

5.3.4 Memory Installation Guidelines

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Issue 07 (2020-07-31)
b
c
1DPC
2DPC
configuration. The value is halved for a server with two processors.
type. The value listed in this table is based on the assumption that DIMMs
are fully configured.
DIMM can reach 2933 MT/s. If the Skylake processor is used, the maximum
operating speed of a DIMM can reach 2666 MT/s only.
Observe the following when configuring DDR4 DIMMs:
– Install DIMMs only when corresponding processors are installed.
– Do not install LRDIMMs and RDIMMs in the same server.
– Install filler DIMMs in vacant slots.
Observe the following when configuring DDR4 DIMMs in specific operating
mode:
– Memory sparing mode
▪
Comply with the general installation guidelines.
▪
Each memory channel must have a valid online spare configuration.
▪
The channels can have different online spare configurations.
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Specifications
16 32
2933 2933
Single rank Dual rank
1.2 1.2
48 48
a
768 1536
d
2933 2933
2666 2666
5 Hardware Description
64
2666
Quad rank
1.2
48
3072
2666
d
2666
128
2666
Octal rank
1.2
48
6144
2666
2666
19