The motherboard disk contain motherboard drivers, and the graphics card disk has graphics card drivers. The disks are usually outdated, so it's better to download them from the manufacturer's website (For the graphics card this would be Nvidia, not EVGA). The BIOS is already on the board. Before you can install any drivers though, you need to install the OS. You should be getting some kind of output from the graphics card though, does anything show up on the screen, are there any beeps?