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The second generation EPYC processor models are built from eight CCD (Core Cache Die) chaplets, grouped as four quadrants, and each is comprised of two CCDs and two memory channels. This is different from the 1st Generation EPYC which was composed of four SoCs connected only through the AMD Infinity Fabric (TM) technology.
Memory DIMMs
It is recommended to have Memory 8 DIMMs, per socket (2 DIMMs per CPU die). The CPU than will be able to push more bandwidth to reach HDR InfiniBand speed.
AMD 2nd Generation EPYC BIOS Recommendations
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