ok so im going to be upgrading from a amd phenom quad 9500 2.2 to a phenom 2 quad 955 black 3.2 is there anything critical i need to to to my pc to make this upgrade? or is switching cpu's as easy as switching video cards? i probably need to upgrade my bios right i have a m2a-vm motherboard and its a two years or so old. ive never changed out a cpu before so, bear with me