I have a HP Pavilion Slimline s7400n PC Desktop with a Celeron M 380 (D) 1.6 GHz processor. I wanted to know what avalible processor upgrades my motherboard will handle or support. The porcessor is a socket 479 just in case you were wondering, also the Pentium M series are 478 socket...are those compatable upgrades? I already contacted HP and their website and phone support said buy a new system. I like my system, I just want a new processor. Is that too much to ask? Anyway, please list any and all processor upgrades for this computer.