okay, so I just put in my new cpu, p4 3.0E 800mhz fsb prescott 478pin. the mobo is an intel D865PERL and I hooked everything up, went to boot, and nothing happens. At first it did nothing, but now it just starts to go but stops after 2 seconds. The fans start to turn anything everying, then it dies. Everytime I hit the power button. It seems like everything is connected correctly and I haven't missed any hookups but I can't figure out the problem. help please!