The game crashes after an hour

At first, there was a different issue, dxgi_error_device_removed, which I was most likely able to fix by installing driver version 560.94. But then I encountered another problem: after about an hour of playing, the game simply freezes, along with the sound, the keyboard backlight turns off, and the PC can only be recovered from this state by forcing a reboot with the button. I tried all the solutions while trying to fix the dxgi error, but nothing helped except installing an older version of the drivers, but now I've encountered this problem.

My PC:
4070
i5 12400f
32GB RAM

I want to clarify that the processor and RAM are overclocked, but just a year ago I played with the same settings and everything worked fine. The problems appeared around after installing the 4070. Before that, I was playing on the 1060 and everything was fine. Now I have a full HD monitor, and the freezes occurred at medium graphics settings with DLSS enabled.