I was wondering if anyone has dealt with PSU whine on account of a motherboard. I built a cool computer using a Xeon LGA771 modified to run in a LGA775 motherboard.. but the motherboard couldn't accommodate the case's USB 3.0 20 pin connector, so I put it in another case, which I was able to modify to install a water cooler. When I plugged it in and switched on the PSU, it (the PSU) made a nasty sound. PC doesn't power up. I have gotten a "swelling" sound that lasts for about 4 sec, and I have gotten a constant high pitch. The bummer is that I tried 2 other PSUs with the same result. All three PSUs work in a different setup. The whine happens only when the power rail is plugged in. I also took out one stick of ram, then the second, unplugged everything else.. IDK. Any idea?? Seems like the motherboard is fried chicken, but I would love to know what I might have done to mess it up. I might have shocked it.. Thank you for any help!