Mirroring mode
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Mirroring mode requires 4, 6 or 12 memory modules per CPU.
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The DIMM population will exactly be identical for the mirrored channels.
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As a result of the mirroring, the total physical memory available to the
system is half of what is populated.
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Mirroring Mode must be populated identically with regards to size and
organization.
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DIMM slot populations within a channel do not have to be identical, but the
same DIMM slot location across mirroring channel.
10.2.3.2 DDR4 DIMM and Optane PMem modules
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Optane PMem module population is limited to several patterns.
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The same DDR4 DIMM type and capacity are used for each DDR4 and
Optane PMem population.
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For App Direct (AD) mode, DDR4 DIMM/Optane PMem module capacity
ratio must be between 1:1, 1:2 and 1:4.
–
For App Direct (AD) mode, Optane PMem modules must be populated
symmetrically across sockets.
Main memory
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