i did that and it's and didn't showed up again.That looks like a driver issue. I would use ddu and reinstall latest drivers....
yesdid you try another game to see if it happens could be graphic itself try also at lower level of graphic .
then use hwinfo and check temp in system also the gpu one could be a high temp issue .
i played the last of us part 1 1080x1920 medium graphic for 5 hours Nothing happened. after download new windows and the last driver after uninstall with ddudid you try another game to see if it happens could be graphic itself try also at lower level of graphic .
It sounds like that was your problem then.i did that and it's and didn't showed up again.
I don't have the money to replace one of them but I'll try as soon as possibleI'd say either the power supply is failing and not supplying enough voltage to the graphics card or the graphics card is failing.
Replacing one of them at a time with a known good part would be a good way to narrow it down.