Heat

Macs Fan Control is free and it changes what your fans do. Plumby mostly answers why they're doing it, with three fan settings instead of curves. Here's the honest split, including which one you actually want.

macOS has no built-in CPU temperature readout. Here's how to check it on Apple silicon with powermetrics, what's a normal range, and why the process running hot matters more than the number.

MacBook fans loud and running hot? Fans spinning up under load is normal; the fix is finding which process is working the CPU or GPU. Here's how to check.