Should my GPU fans be on?

The GPU fans on your computer should always run until your GPU is hot or running for long periods of time. have been inadequately powered and you notice that your GPU’s temperature has risen quite a bit, you should most likely turn up the GPU’s heat.

How do I know if my GPU fan is working?

To test if this is what is happening with your graphics card, simply run a game or stress test/benchmark that will put your GPU under load. You can also install MSI Afterburner and raise the speed of the fan(s) manually.