A quad-rank LRDIMM generates the same electrical load as a single-rank RDIMM on a
memory bus.
Table 5-6 DDR4 memory specifications
Parameter
Specifications
Maximum
capacity per
DDR4 memory
module (GB)
16
16
32
32
64
128
Rated speed
(MT/s)
2666
2933
2666
2933
2933
2933
Rank
Dual
rank
Dual
rank
Dual
rank
Dual
rank
Dual
rank
Quad
rank
Operating voltage
(V)
1.2
1.2
1.2
1.2
1.2
1.2
Maximum
number of DDR4
memory modules
in a server
a
24
24
24
24
24
24
Maximum DDR4
memory capacity
of the server
(GB)
b
384
384
768
768
1536
3072
Maxim
um
operati
ng
speed
(MT/s)
1DPC
c
2666
2933
d
2666
2933
d
2933
d
2933
d
2DPC
2666
2666
2666
2666
2666
2666
● 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.
● 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.
● 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
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.
Huawei FusionServer Pro 2288X V5 Server
Technical White Paper
5 Hardware Description
Issue 03 (2020-04-20)
Copyright © Huawei Technologies Co., Ltd.
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