Oh wow, no maxmem 4666C15 DR on Z490 Dark? I have same model mobo and RAMs, maybe I should give something similar a go! 1.75V no maxmem is crazy.

This is actually my profile for the 4000C19 kit, and I thought I had them on the board, but it's actually the 4000C16. I couldn't get the 15-15-35 to work with the 4000C19. Now I've found out the 4000C16 does it. https://ibb.co/kkzGmMs

Holy Schnitzel! I have 4000C19 too, I have to try something on my Dark as well, this is motivation. What is your daily preset?

13th Gen is my daily. I have bought this just for having fun. ;)