Fan! Can you please shut up?

Why is the fan so noisy? It’s my brand new Dell XPS 14, and the fan is noticeably, annoyingly, incessantly… there. Not really loud by anyone’s measure. But it’s there. And thus it started. Tweaking the power profile, downloading the latest firmware, tweaking the power profile some more, waiting for new firmware… nope. Still there. What is making it noisy? CPU is heating up. Clocked the CPU down.…