i think you're supposed to look at the CPU temp, not the individual core temps. if i read it correctly, i saw somewhere that Intel told us to disregard the individual core temps? 42° load might be accurate with your cooling solution. i have an Asus Silent Square and my 8400 doesn't go over 45° load @ 4.05 GHz, 1.3125 Vcore (1.24 load actual). the people getting high temps with these are overvolting the hell out of them.