Every modern motherboard comes with an embedded Flash EEPROM module, otherwise known as the BIOS chip. Short for Basic Input Out System, this is the first bit of code executed when you boot your PC. The BIOS stores all kinds of essential information about your system, such as your CPU's clockspeed, the size and type of RAM you're running, the boot order of your media, what onboard devices are present, and much, much more. An improperly configured BIOS can prevent Windows (or Linux) from loading, while a finely tuned BIOS has the potential to significantly improve performance over that of a similarly spec'd machine.

Whatever your goal is, this is your go-to guide for everything you've ever wanted to know about the BIOS. We cover every setting -- even the obscure ones -- so you'll never feel lost or out of your element, no matter what motherboard you're rocking under the hood.