My pc went dead while working and there was a burning smell. I suspected that the PSU burnt out, so I got a new PSU from TigerDirect (PowerUP 450W ATX). No luck even after replacing the new PSU. The front panel switch light and a green light on mb are on, but no fans running (even the one in PSU) and no power to DVD-ROM either. Can some one help me? I expect at least the fan in the new PSU should work....