I need help about gigabyte motherboard because its not powering on,i also tried the asus p5kpl-am se motherboard with my psu and it powered on and all fans were spining because i thought maybe the psu was bad,also my motherboard is gigabyte p35 UD3R and everything was working perfectly until i decided to open my computer to move the cables and to change some screws after that i closed my pc(everything was connected perfeclty)and the psu didnt turned on while i was pushing the power button consantly also i had that issue 1 month ago on asus motherboard it wasnt were working so i changed it then i bought gigabyte p35 and it worked perfectly now after i moved the cables and re connected them again its not working