Your PC or Mac's central processing unit (CPU) is like its brain. It's the piece of your computer that tells every other part how to work, which programs to launch, which pictures to show, and more.

Alternatively, right-click the Windows icon in the bottom-left corner and select "Device Manager." Your CPU will be listed under "Processors." How to prepare to overclock your CPU.

Step 3: Check the menu bar at the top of the screen for the Hot app's icon, which looks like a flame. The average CPU temperature will appear beside it. Open the Hot app's menu to see more options ...