Yeah, it's super frustrating, I'm happy I knew about it before I did my ddr5 build. And then my board has this cool feature where when I load the XMP/EXPO profile from the ram, it turns termination from Auto to Off, and won't boot... sometimes it figures it out and goes back to the JEDEC profile, but usually I have to clear the CMOS. Tons of fun! And latest BIOS does the same thing, I updated recently cause I was having weird things, which did go away but not sure if the BIOS update or new fan settings helped more.