FusionServer 5288 V6 Server
Technical White Paper
5 Hardware Description
2022-06-25
30
Table 5-6
DDR4 memory specifications
Parameter
Specifications
Capacity per DDR4 memory
module (GB)
16
32
64
128
Type
RDIMM
RDIMM
RDIMM
LRDIMM
Rated speed (MT/s)
3200
3200
3200
3200
Operating voltage (V)
1.2
1.2
1.2
1.2
Maximum number of DDR4
DIMMs in a server
a
32
32
32
32
Maximum DDR4 memory
capacity of the server (GB)
512
1024
2048
4096
Actual rate
(MT/s)
1DPC
b
3200
3200
3200
3200
2DPC
3200
3200
3200
3200
⚫
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: DPC (DIMM per channel) 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
This section applies to a server fully configured with DDR4 memory modules. If PMem modules are
used together, see 5.4.2.4 DIMM Installation Rules.
Observe the following when configuring DDR4 memory modules:
⚫
Install memory modules only when corresponding processors are installed.
⚫
Do not install LRDIMMs and RDIMMs in the same server.
⚫
Install filler memory modules in vacant slots.
Observe the following when configuring DDR4 memory modules in specific operating mode:
⚫
Rank sparing mode
−
Comply with the general installation guidelines.
−
At least two ranks must be configured for each channel.
−
A maximum of two standby ranks can be configured for each channel.
−
The capacity of a standby rank must be greater than or equal to that of other ranks
in the same channel.
⚫
Memory mirroring mode
−
Comply with the general installation guidelines.
