I have a GTX 960 by gigabyte. When I first got the card the fans would turn off when I'm not in a game. (I got the card 2 years ago). I have only just noticed that it's doing this. On their website it says that when the gpu is under a set loading or temp the fans will remain off
https://www.gigabyte.com/Graphics-Card/GV-N960WF2OC-4GD-rev-11#ov
that is my gou
https://www.gigabyte.com/Graphics-Card/GV-N960WF2OC-4GD-rev-11#ov
that is my gou