xFusion Digital Technologies FusionServer G5500 V7, Technology White Paper

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Table 5-6 DDR5 memory parameters
Parameter Specifications
Capacity of a DDR5
memory module
(GB) 16 32 64 128 256
Type RDIMM RDIMM RDIMM RDIMM-
3DS RDIMM-
3DS
Rated speed (MT/s) 4800 4800 4800 4800 4800
Operating voltage
(V) 1.1 1.1 1.1 1.1 1.1
Maximum number of
DDR5 DIMMs in a
server
a
32 32 32 32 32
Maximum DDR5
memory capacity of
the server (GB) 512 1024 2048 4096 8192
Actual
speed
(MT/s)
1DPC
b
4800 4800 4800 4800 4800
2DPC 4400 4400 4400 4400 4400
● a: The maximum number of DDR5 memory modules is based on dual-
processor configuration.
● b: DIMM per channel (DPC) indicates the number of memory modules per
channel.
● The information listed in this table is for reference only. For details, consult
the local sales representative.
5.4.1.4 DIMM Installation Rules
Observe the following rules when configuring DDR5 memory modules:
● The memory modules configured must be DDR5 RDIMMs.
● The memory modules must be configured with the same number of ranks.
● Install filler memory modules in vacant slots.
5.4.1.5 Positions of Memory Modules
A server supports up to 32 DDR5 memory modules. To maximize performance, it is
advised to use balanced memory configuration.
Observe the memory module installation rules when configuring memory modules.
For details, see the
Server Assembly Guide .
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