2. Monitor Your Computer's Temperature If the fan noise only kicks in when you're purposely doing something intensive, like gaming or converting a large video file, then that's the desired behavior.
If your PC doesn't sound like the silent dream you thought it would, it's probably your choices that brought you here. PC components are prone to some level of noise, especially those spinning rapidly ...
Most BIOS settings you don't need to change. This isn't one of those.