Okay I need help about a computer case that I swapped out which is a HP Pavilion a1243w its motherboard form factor on the website says it’s an ATX that’s 9.6in x 9.6in but the motherboard given on the case was a asus motherboard (physical dimensions specs were 9.6in x 8.2in) and I want to buy a new motherboard but am afraid that I buy something bigger than the given board or that’s equal to the form factor or exactly like the board dimensions given or slightly less than such as a (board that I currently want to buy specs dimensions are 9.6in x 9.6in, or 9.6in x 8.3in) would it fit in properly or would I have to customize it to fit on the case ? For example me adding screw holes for the stand offs, so it can fit the motherboard to the case