Have you tested to see if the fan turns on with programs like furmark or the like? There are power/fan/noise saving features on graphics cards (modern) been a standard for some time they will turn on (fan) when it needs too.
Have you tested to see if the fan turns on with programs like furmark or the like? There are power/fan/noise saving features on graphics cards (modern) been a standard for some time they will turn on (fan) when it needs too.