Next too no burn-in with MX-2
what did you clean off the old TIM with?
And how much MX-2 did you use (I always found you needed twice the amount of AS5 and it works better on non-lapped surfaces)
pull off the HS and check it's got good contact if more the 5c differance
Also are you stress testing with same program? most have had revisions in the last few years.
And did you note the ambient temp when you last tested - it's not winter any more.
Did the same my self - Abit IP35 pro to P5Q and power draw at wall was higher.
The Abit was one of the best low power P35 boards. The asus one are the hungriest power P45 boards...bit rubish really, should have done more research.
But - I was able to run my e6600 at 1.1v on the asus, where as 1.35v was the lower the Abit BIOS would go (and it would overvolt it too) Now runs cooler and with less watts used - Have a play with the bios lot's you can do to drop the voltage/heat generation, but keep the same clock speed
Edit:
It could be a more/less accurate temperature sensor in your new motherboard.
Excerlent point - both could be same 'actual' temp just being recorded differently. Need an external thermonitor to really know
