Solved! Thank you guys very much for your input. The variant with the 3090 graphics card and a DP cable (HDMI does not actually work) helped. I was then able to enter the Bios and make the settings according to theotorm. I then installed the 4090 and...
I have exactly the same problem with the following components:ROG Maximus Z790 HeroIntel i9-13900KSCorsair Vengeance 2 x 16GB, 7200 MHz, DDR5-RAMVarious tests with 1 or 2 RAM, different i9-13900KS and also i9-13900KF, with or without graphics card RT...
