I'm not sure if this would be more suited for General Hardware, but I think it's related to the power supply. I bought a new case and finally got a chance to transfer everything over yesterday (sig has the parts in question). After it was all said and done, the system no longer turns on. I tried both ways on the power switch thinking maybe I reveresed it, had the mobo on the removeable tray and off the tray outside the case, but nothing happens. I also unplugged everything and all the expansion cards while the mobo was out, also nothing. The last time I tried it without anything plugged in and the expansion cards out, I noticed a high pitched sound come out of the power supply as I unplugged the power from the wall. The unit in question is a Fortron 350w (the blue one with the sleeved cables). Is it possible I shorted something in the power supply? I don't have another power supply to test unless I borrow one from work. I was going to put everything back in the original case but I don't think it'll make a difference. Any ideas?