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Independent mode installation order

In independent mode, memory channels can be populated with DIMMs in any order and you can populate all channels for the processor in any order with no matching requirements. Independent mode provides the highest level of memory performance, but lacks failover protection. The DIMM installation order for independent mode varies based on the number of memory modules installed in the server.

Independent mode installation rules​

Follow the rules below when installing memory modules in independent mode:

  • There should be at least one DDR5 DIMM installed.

  • All DDR5 memory modules must operate at the same speed in the same system.

  • In each memory channel, populate the slot farthest from the processor (slot 0) first.

  • All DIMMs must be all DDR5 DIMMs.

  • All memory modules to be installed must be of the same type.

The following table shows the sequence of populating memory modules for independent mode.

Table 1. Independent mode with one processor
Total DIMMsProcessor
H0H1G0G1F0F1E0E1A1A0B1B0C1C0D1D0
1 DIMMA0
2 DIMMs  G0      A0      
4 DIMMsG0E0A0C0
6 DIMMs  G0 F0 E0  A0   C0 D0
8 DIMMsH0G0F0E0A0B0C0D0
12 DIMMsH0 G0G1F0 E0E1A1A0 B0C1C0 D0
16 DIMMsH0H1G0G1F0F1E0E1A1A0B1B0C1C0D1D0