Restarting Nvidia Drivers

Good day!
Such a problem. During any games, sometimes even when working in Sony Vegas, at some point the screen turns off several times, then turns on, the application crashes and a message appears in the tray that "the Nvidia driver stopped responding and was restarted." completely freezes and does not respond to neither keyboard nor mouse. I checked it on three different systems on my computer (Windows 7, Windows 8.1, Windows 10). Clean MSDN images, I don’t use assemblies. The system is now clean, Windows 7 (x64), a week after reinstallation. The same result. The video card almost does not heat up, before departures it happens somewhere around 40-50 degrees. I checked all possible ways: I installed old drivers (there were fewer departures but still appeared), set the TdrDelay value through the register, changed the voltage, fan power through the Afterburner, set minimum settings in games, launched in a window, etc. ASUS Geforce GTX 650 Ti Boost 2 GB video card. If I remember correctly, it was overclocked by the GTX 650, so I did not carry out any such shenanigans with it. I checked 2 more video cards, the same problem. Should I buy a new video card or a motherboard?