Not too long ago my computer crashed while playing a video game I rebooted and it wouldn't load to windows rebooted again and nothing at all came on the screen I concluded that the problem was the HD tested it another comp and it didn't work at 1st but if held in a certain pos it worked.. so I thought it was the HD bought a new HD still same problem. No beeping sounds from MOBO don't see any MOBO lights on the MOBO either. But everything else is getting power it seems. What should I do? Is it clear that the mobo is defective or what?