Motherboard defaults are built so that users get up and running as easily as possible. They’re safe, reliable, and give your system the best chance to boot and continue to function properly, but they’re not optimal. This includes fan curves, which are often forgotten about among the other more tangible ways to increase performance through the BIOS. Changing them using the built-in options can seem like a shortcut to a quieter, more performant PC, but they’re also imperfect. By spending just a few minutes building a custom curve, my PC has become quieter and cooler, and it’s something anyone can do.