Here are some sticks I would look at. They're more expensive than the cheap stuff obviously. But I value my time more than dicking around with bad ram for days.
Buy G.SKILL TridentZ Series 32GB (4 x 8GB) DDR4 3600 (PC4 28800) Desktop Memory Model F4-3600C16Q-32GTZSW with fast shipping and top-rated customer service. Once you know, you Newegg!
www.newegg.com
^^I had 2 sets of these leftover from a previous 7820x build. I had bought these years ago obviously when they were double the price, coincidentally that was the last time I bought ram so compared to todays pricing, it is dirt cheap lol. That said old school Samsung B-dies from Intel days dropped right into my Asus 3900x build w/o one issue. I ended up handing down that rig so I needed a new set of dimms.
Buy G.SKILL TridentZ Series 16GB (2 x 8GB) DDR4 3600 (PC4 28800) Desktop Memory Model F4-3600C15D-16GTZ with fast shipping and top-rated customer service. Once you know, you Newegg!
www.newegg.com
^^I' got these for my 3900x, got em for 140 when they were on sale and coming from the last time I bought ram, it's still cheap.
Buy G.SKILL TridentZ Series 32GB (4 x 8GB) 288-Pin PC RAM DDR4 3200 (PC4 25600) Desktop Memory Model F4-3200C16Q-32GTZSK with fast shipping and top-rated customer service. Once you know, you Newegg!
www.newegg.com
Also, general rule stay away from "odd numbered timings" like the c15 kit I am using. Boards don't like displaying odd timings w/o disabling gear down mode. And disabling gear down mode means a bit of tweaking timings and settings and other crap making it a bigger pain than that timing is worth. That's generally why we rarely see odd timing ram on cas latency.