Im having the same problem. Everything on my mobo is detected and power connectors are firmly in place. I just finished building my computer and the bloody OS wont install, i get this darn black screen with just the mouse.
MY specs are i7 2700k, asus 660 ti, Asrock z77 extreme 4, corsair gs800w, seagate barracuda 1tb, nzxt phantom full tower, and windows 8 pro disk. Im using a usb dvd drive for the disk read.