My mobo is dead, so I have to find a new one. While I was doing that, I got myself a new P4 1.8Ghz CPU. Now I need a 478 board that can handle it, AND fit in my case. I need to know what the maximum size that my box can hold is considering that I have a 305mm X 190mm mobo in there right now. Do I need to get one exactly the same size, or can there be some variation, and if so how much?