Memory Installation Guidelines - Huawei FusionServer Pro 1288H V5 Technical White Paper

Huawei FusionServer Pro 1288H V5 Server
Technical White Paper
Table 5-7 DDR4 memory specifications
Parameter
Maximum capacity per DDR4 DIMM (GB)
Rated speed (MT/s)
Operating voltage (V)
Maximum number of DDR4 DIMMs in a server
Maximum DDR4 memory capacity of the server
(GB)
Maximum operating
speed (MT/s)
● a: The maximum number of DDR4 DIMMs is based on dual-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

5.4.4 Memory Installation Guidelines

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Issue 14 (2020-09-03)
b
configuration. The value is halved for a server with only one processor.
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.
▪
Each populated channel must have a spare rank.
– Memory mirroring mode
▪
Comply with the general installation guidelines.
▪
Each processor supports two integrated memory controllers (IMCs).
At least two channels of each IMC are used for installing DIMMs
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a
c
1DPC
2DPC
5 Hardware Description
Specifications
128
2933
1.2
24
3072
d
2933
2666
26