Sorry, but I hate to ask another question but do you have to update the motherboard BIOS or video BIOS in order to work out the compatibility issues with install a new GPU?
Concerning the other question, what I should have said was does it matter whether I buy an XPS 8500 in the "For Home" section or the "Small Business" section or are they basically the same in terms of specs besides the fact that one comes with Win 8 and the other with Win 7 and what is customizable?