Nothing. I tried 2048, 2176, 2560, and even 3072.
Cold boot(i always switch off psu in the night) with stock settings->code 94. I need to enter bios, save and exit, and all works.
Boot with oc settings->code 94. No matter what i do, after the first boot screen pc stops with f.....g code and black screen. I tried different settings, even 200x16, without success. Is annoying

I think my board won a travel to rma.