I read and did the calibration in real temp for my E8400 and here is what happens: First off, it says that a good ventilated CPU, opened case @ 1600Mhz with 1.1V should idle about 4-5 deg hotter than ambient temperature. But however, that was when everyone believed that the TJMax is 95 deg, but now since intel released it as 100deg, does that mean that now it has to idle 8-10 deg above ambient? Second, when I am in normal mode or oc'd or whatever, Core 1 seems to be 5-8 deg hotter all the time. When I was doing the calibration, Core 0 sensor seemed to be showing ok temps (TJMax 95) i.e 5 above ambient but core 1 is 5 deg hotter. So what I've done is I only calibrated Core 1. Is that ok? I mean, should that thing be done for both cores, or as in my case only on one core?