I did switch back to the old graphics card, same error/problems. I run memtest now

I assembled all parts myself, did this for years - had no problems till now.

Yesterday I also tried using a hdmi connection instead DP, same problems. All drivers, also the chipset driver, are...

Hi guys,

I bought some new hardware (to be precise, a whole computer but I kept the monitor) and installed a new os. My hardware is a Gigabyte Z790-board, an intel 12700K-cpu, 3080ti graphics...