whats the normal operating temp for the AMD Athlon II X4 620 2.6 GHz Quad-Core (ADX620WFK42GI) Processor? At idle Im a 54 deg cel (130 deg fer) is that normal? My fan kicks in full at about 142 deg fer. which it never did with my old proc athlon 2 215 duel core 2.7ghz, but that was a 65w but stlil under heaver load that one never turned my fan on fulll like this one does. Would a cheap aftermarket heatsink really make a big diff is it worth getting one will the copper pipes and all or just get a better fan, mine is a 3 pin and mostly I see 4 pin fans and some say their both whats the extra wire for?