I would like to upgrade the above system but don't know if current mother boards will fit the box. The existing board is SFF/ATX. I have the first version of this b/b system with an AMD Athlon XP 2500+ chip. (I think this is a socket A setup). If I upgrade will the cooling system be up to spec and will the colloing pipe block fit over the chip or will it have moved on the m/board. Thanks, Phil