Wow, i manually overclocked my opteron 240 to 1.61 GHZ (by raising FSB speed) unluckily multiplier is locked, but still, i got it up .21 GHZ. Windows loads 2 seconds faster and it's still stable :D!! Guess it's not too good, on;y 1.61. So now my FSB is 229 and my Multiplier is 7. I can go up to 233 FSB speed but decided this was good enough for now ;)( i'm still usingthe heatsinks that came with my mobo)