I have a dell XPS 720, and its CPU is just not powerful enough to play my games anymore. I am going to build a new system but i don't have the money to get5 every part, so i am trying to save as much as i can. My computer has the 750w power supply in it, which would be more than enough to power anything i can get atm, but i am wondering if i can even use it for an ATX motherboard? Any help would be greatly appreciated. Thanks!