I built recently new computer – well, after having problem with mounting posts – I used too much unnecessary screws and system was powering up and turning off instantly when I pressed power button, now I have another problem (after removing unnecessary posts and system powers up)- when I press power button now – case, cpu, graphic card fans, and power and reset button on the mobo seem working, but nothing else happenes – no pic on the screen as well as no beeps. Is that means my mobo crashed? My mobo is MSI DKA790GX. If I mistakenly plug AC’97 front panel cable instead of HD, that might be the result of that mistake?