honestly dude i think you should try reseating your HSF. even with a stock cooler, those temps seem a little high for only running 2.5ghz. that chip could EASILY run 3.0 and still beg for more. LGA775 HSF are a bitch to install correctly. i had to remove my motherboard completely, and even doing that, it took me a good 15-20 minutes to get it nice and snug. just remember there should be absolutely no movement whenever you push on it lightly from any side. remember to reapply your thermal compound, spread it evenly with plastic over your finger. the size of a pea worked perfectly for me.