i have a relatively new computer that died over the period of about a week. I think the power supply is ok, because all of the fans come, including the cpu fan, on when I try to power up, but nothing comes on the screen. The monitor isn't the problem, it works fine on my other computer, and I don't think it's the video card, because I replaced that and still no dice. I am thinking the motherboard is the problem, but I don't know how to confirm that exactly. Any help? Thanks.

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