Hey all am lost man i got a atx tower with a rampage 3 motherboard, 12g corsair dominator ram, 2x580 gtx super clocked, and a 980X i7, am getting no video to my monitor and no boot screen , i did the 20 steps listed on the forums, i used 1 SSD,1 dram, and 1 graphics card same problem, checked the cards no issue, checked the board everything lights up, reset the cmos, and nothing i cant afford new anything lol, or taking it to a repair guy that gonna rob me. recently it wouldnt start normaly and i had to use F8 to choose a boot device? anything would help thank you.
Have you tried the breadboard guide that was at the end of the troubleshooting guide? The error about the boot device suggests that Power On Self Test was unable to detect the boot drive (or at least the boot sector on the drive).
Double check your cables, ensure they're connected snugly at both ends. If you can, borrow a DVI cable from someone to rule out the connection between GPUs an monitors.