I read ASUS P8P67 Deluxe user manual. In chapter "2.3 Building your computer system". The Graphics Card is an option. Does ASUS P8P67 Deluxe (V3.0) can work without Graphics Card if I use CPU core i3, i5, i7 intergrated GPU? How can it work without VGA card and without VGA or DVI port on mobo?