ive just recently finished adding the fans and heatsink to my new computer. on reconnecting everything, the computer wont turn on. the psu makes an odd buzzing noise after connecting the atx power cable. anyone know whats going on, and why nothing will turn on? the button is correctly configured, so its nothing to do with the button not being connected properly. specs as per sig. the fans all come on, but power down. im getting nothing from other hardware though. the fan on the psu is also starting and stopping.