Why is the xbox one so loud?

Our xbox one is so extremely loud! She's whining so loud all the time! We always watch netflix over the xbox one. And lately she is buzzing so loud that you can hear it properly even though we watch TV. If I turn it off, it still whirs a good 5 minutes until it stops. What could that be?

The sounds come from the radiator.

The X-Box gets warm, so it cools down, logically or