Table 5-3 DDR4 memory specifications
Parameter
Specifications
Maximum capacity per
DDR4 DIMM (GB)
16
32
64
128
Rated speed (MT/s)
2933
2933
2666
2666
Rank
Single rank Dual rank
Quad rank
Octal rank
Operating voltage (V)
1.2
1.2
1.2
1.2
Maximum number of
DDR4 DIMMs in a node
a
48
48
48
48
Maximum DDR4
memory capacity of the
node (GB)
b
768
1536
3072
6144
Maximum
operating
speed
(MT/s)
1DPC
c
2933
d
2933
d
2666
2666
2DPC
2666
2666
2666
2666
● a: The maximum number of DDR4 DIMMs is based on four-processor
configuration. The value is halved for a server with two processors.
● b: The maximum DDR4 memory capacity varies depending on the processor
type. The value listed in this table is based on the assumption that DIMMs
are fully configured.
● 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
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.
5.3.4 Memory Installation Guidelines
●
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.
Huawei FusionServer Pro CH242 V5 Compute Node
Technical White Paper
5 Hardware Description
Issue 07 (2020-07-31)
Copyright © Huawei Technologies Co., Ltd.
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