I recently installed a Gold Rated Corsair HX850 and a Gigabyte GTX 770 4gb video card into my computer. After installing these parts my computer doesn't boot correctly. When I start it, it immediately goes to the motherboard page (which is a gigabyte motherboard by the way) and won't allow me to access the bios or any of the other options provided. If I try to access the bios the computer will simply do nothing for 30 seconds, beep a few times and then give me a black screen. If i press no keys during the boot it beeps roughly 5 times at specific interval, switches the boot screen to my second monitor and then switches the log in screen back to my main monitor and runs fine after that. Having just installed new parts for the first time I have no clue what I may have done to cause this issue. Please help!