do i need a 300 watt case inorder to boot up a 1.3 gig amd athelon ? or can i use a 250 watt power supply ? as i know a friend of mine got a new mother board and a amd cpu 1.3 gig and he told me he couldnt get it to boot .. is it the power supply problem or something else ? can you actually boot up from a 250 power supply ? all replys are appreciated thanx