I have a computer I built and it worked great for around 2 years. Then it just died. I tested the power supply with a power supply tester and it passed. There are no beeps, no fans spin, nothing. There are two led buttons on the motherboard and both light up. I figured after my troubleshooting that the mother board was bad. I had it replaced, but same thing. Power supply tests fine (two testers), no fans spin, no beeps. I've tried a different video card before and after the motherboard replacement. I would think it would beep if the CPU(intel i7) itself was bad wouldn't it? I don't know where to go from here and looking from the community's advice.