Could this be due to QPI ceiling? Could you change the multi manually to see if it makes any difference?
Without overclocking, when the CPU clock speed is close to nominal, boards can reach up to 215 MHz. I didn’t check anything beyond that point. But during overclocking I can’t achieve stability neither at 204 nor at 209 MHz. I tried both: Intel Core i3-540 and 530, lowered CPU and QPI multiplier, but all in vain.
Please, please, please do some oc testing with lynnfield! I want to know which one does better - p55 of h57.
Since Clarkdale overclocks on P55 exactly the same way as on H57 and H55, these chipsets have the same overclocking potential.