I am running a computer with a 2.8 p4 with ht, 9600 pro, audigy sb 2, 120 gig hard drive, dvd and cd drive. with a 350 watt power supply. I recently installed 2 new antec tornados. They suck alot of power and i could hear the psu making a pulsing noise. I didnt really think anything about it til my computer randomly crashed several times. So i unplugged one of the fans and the pulsing noise stopped so i thought my problems were solved but then my computer crashed again. What is causing this and can it be fixed.