"all chips are the same"
what does this mean - core 2 6300 and e6400 only differ by the multiplier
sweet spot is 2.8 ghz to 3.4ghz
with amd 2.6ghz - 3.0 ghz is the sweet spot.
a qx6700 is 1330fsb 10x 3.325ghz at 1335 the temps go way up.
run a stablity test and a temp program on the desk top or check temps in the bios - raise the fsb, multiplier with auto features off, until the temps go up