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AMD EPYC 7551P memory. Cant find memory from MB QVL list.. Suggestions?

I got a super good deal on an AMD Epyc 7551P, so I jumped on it. I also picked up an ASROCK EPYCD8-2T motherboard and have started my search for memory. I checked the motherboard manuals QVL list but I havent had any luck in finding any of the modules listed as being available anywhere. The list was also very small and in very odd (aka: small) configurations so its not entirely surprising I suppose.

I have a couple 1950X based systems and the memory compatibility was very hit and miss. I also have a 3960X and that was much better with RAM compatibility. I am want to do 8 channel and preferably at least 256GB of ram on the Epyc system. Does anyone have any experience and advice regarding memory compatibility on Naples CPU’s? Can I pretty much just get any 8 modules and as long as its 2666MHz and ECC its going to work?

You have one of the boards I was looking at for EPYC 7262, but that processor is not on the supported CPU list, but jumping in here so I’ll see if you get any responses on your memory question since I will face similar concerns.