I just got a new psu because my old one made a poping noise. I plugged the new psu up (only in the 24 pin), and it turned on fine and well. Then i pit a 6 pci cable in the cpu power and it turned on then right off. Now the only way itll turn om is if i unplugg the psu untill the mb light fades and then it will turn on for a sec. I dont know if i messed up my cpu or what. Can someone help?