Trying to lower temperatures, improve performance, or increase battery life is all about making small tweaks that can add up to something more noticeable. Intel XTU is a powerful piece of software for undervolting or overclocking, but it can be daunting if you don’t understand the myriad options presented to you. This guide covers the layout of Intel XTU and gives the process for adjusting voltage and TDP to reduce temperatures, extend battery life, and improve performance. Keep in mind that this software isn't magic so the improvements aren’t drastic, and some changes may have no effect at all — depending on your situation.