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Independent mode

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

Following are the independent mode guidelines:
  • Individual memory channels can run at different DIMM timings, but all channels must run at the same interface frequency.
  • Populate memory channel 0 first.
  • Memory channel 1 is empty or identically populated as memory channel 0.
  • Memory channel 2 is empty or identically populated as memory channel 1.
  • In each memory channel, populate slot 0 first.
  • If a memory channel has two DIMMs, populate the DIMM with a higher number of ranks in slot 0.
Table 1. Memory population in independent mode
Total* Optimal performance of this configuration requires that all the installed DIMMs are of the same capacity.Total
Processor 1
CH1 (F)CH0 (E)CH1 (H)CH0 (G)CH0 (C)CH1 (D)CH0 (A)CH1 (B)
2*      4 2 2*
4* 9 7  4 2 4*
6*109 7  4 216*