xFusion Digital Technologies 02313MKD - DIMM Installation Rules

FusionServer 2288H V6 Server
Technical White Paper
5 Hardware Description
2022-06-25
151
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For details about the capacity type of a single memory module, see "Search Parts" in the
Compatibility Checker.
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The maximum number of memory modules supported depends on the memory type and
rank quantity.
Each memory channel supports a maximum of 8 ranks. The number of memory modules supported by
each channel varies depending on the number of ranks supported by each channel:
Number of memory modules supported by each channel ≤ Number of ranks supported by each memory
channel/Number of ranks supported by each memory module
Table 5-53 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
16
16
16
16
Maximum DDR4 memory
capacity of the server (GB)
256
512
1024
2048
Actual rate
(MT/s)
1DPC
b
3200
3200
3200
3200
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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.
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b: DPC (DIMM per channel) indicates the number of memory modules per channel.
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The information listed in this table is for reference only. For details, consult the local
sales representative.
5.2.4.1.4 DIMM Installation Rules
Observe the following when configuring DDR4 memory modules:
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Install memory modules only when corresponding processors are installed.
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Do not install LRDIMMs and RDIMMs in the same server.
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Install filler memory modules in vacant slots.
Observe the following when configuring DDR4 memory modules in specific operating mode:
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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.