System Boards. Regardless of which operating system you decide to use, the system board in your PC is the platform on which it runs. This chapter introduces you to all of the components and features that compose the system board, as well as explaining how they work together. We also cover the connections to the system board, including the system bus; and I/O connections, including Universal Serial Bus , the FireWire, keyboard, and mouse. We present ways to make Plug and Play work for you and your computer, or at least ways to keep it from preventing you from using your hardware. The BIOS setup gets the full treatment, and we even cover how to work with Flash ROM and how to use special recovery procedure, if you run into problems. We wrap up this chapter with the problems you may encounter and how to fix them, of course.