I can't get my system stable at 6400 MT/s with FCLK at 2133 no matter what. Why could that be?

Does ProcODT at 25.3 ohms affect stability in any way? I noticed that some people use higher values.

I'm using a Ryzen 7 9800X3D and an ASUS X870 MAX Gaming WiFi7.

My RAM kit is a 2x16GB G.Skill Trident Z5 Neo 8000 CL36 Hynix A-die.