And why you would want to do this
How to Underclock Your CPU for Lower Temperatures
As magical as our computers are, they don’t run on unicorn kisses and magic dust. At the end of the day, there’s just electricity flowing through the electronic veins of your PC. Just like any other electronic device, the components inside your computer operate at specific voltages. That is, the amount of pressure that pushes electrons through the circuits inside your computer.
Your CPU is designed to run at a specific voltage, but you can adjust that number to either higher (overvolting) or lower (undervolting). It is the latter (undervolting a CPU) that we want to discuss in this article, and we'll start with the most important question.
Electronics are not 100% efficient. This means that some of the electrical energy flowing through your CPU is converted into heat. This is why your CPU needs a heatsink and fan to keep it from overheating. By reducing the voltage of a CPU, you also reduce the amount of electrons flowing through the system. This translates into less heat.
