Unfortunately yes, it is a hardware problem, the motherboard has a problem with the Nvidia 4000 series cards, until I discovered the problem, I tested 3 gpus, before I used the RX6800XT, for a year and never had a problem.

For this reason I didn't send my MOBO, I was afraid something like that would happen to me, especially since the solution of changing the Nvidia panel, power management mode, to prefer maximum performance, worked in my case, they would certainly clai...

Same problem with me, my case is an NZXT H1V2, and I used an AMD RX6800XT (I never had any problems in a year and 3 months of use), I bought an MSI RTX 4070 ti Super Ventus 2X OC (Used), and my machine started to show black screen and restarts from t...