G.Skill TridentZ RGB 4000MHz 2x16GB, 16-19-19-39, 1.40VP/N:
Tested in Z590 FTW. Runs XMP profile 1 at above specs (gear 2). I clicked XMP 1, then changed it to 3733MHz, gear 1, 1.45V, 16-16-39 and it has been running with zero issues since the first bios (I am on the latest now (1.06?)). It booted if I left it at 1.4V (I think BIOS shows 1.43 for the reading when set at 1.4), but I'd have some issues with stability tests after tightening the timings above. I did not adjust any other settings for it.