I am computer illiterate. I know enough to turn on my system and play my games. I have an older system, it is an HP desktop model P7-1534. I need to upgrade my motherboard/cpu (I'm hoping to buy a combo). I called one store and they said I HAVE to get a uATX motherboard and NOTHING else will be compatible. Another store said that an mATX would work. I really need help here. I need to upgrade my computer. It is 6 years old, most of the new games I want to play aren't compatible with my current CPU.