I built this computer about a year ago and it worked fine up untill 3 weeks ago, I got a virus on it and had to reformat it putting windows 7 back on it. But before I could do that it wouldnt turn on the onboard video and would power up and then reboot and power up and back down, after about 3-5 cycles it would come on and stay on till I shut it down again then it would do it again. I contacted intel as it is still under warrenty and they replaced the board.
So today I got the new board and installed it and it still does the same thing. Any ideas on what else this could be?