Quote Originally Posted by Demo View Post
On B3 Q6600 the TjMax would be around 85c right ?
This is what RealTemp assumes but I believe other programs like CoreTemp are assuming 100C. If anyone out there has a B3 I would appreciate it if you could run OlsMsrEditor and do a RDMSR of 0xEE and post your findings. I would also appreciate it if you could run some low speed, low voltage tests and post your results.



On my B2 E6400 with TjMax=85C, this first digit is a C so bit 30 is set while on my Q6600 it is an 8 so bit 30 is not set. I'm not convinced that this bit has meaning across the entire desktop line but I'm also not convinced that it doesn't have any meaning. I'm just doing my research and will continue to do so until everyone has a program they can trust. I might be at this for a while. Reports for different CPUs is always appreciated.

My Q6600 has the heatsink on it and it is pretty obvious that the sensor for core2 is moving at a different rate than the other ones. The difference between cores was usually 3 during previous idle testing with the heatsink sitting loosely on top. Now with the lower core temperature the delta sometimes jumps back and forth between 4 and 6 compared to the other sensors. Even CoreTemp is reporting it at or below room temperature. These sensors were never designed for reporting idle temperatures and this is just another example of this. This isn't just a 45nm or dual core issue.

With a (++) Idle Calibration on this core the temp looks very believable but the other cores only need a (+) calibration so individual calibration for the Quads has just moved up to the top of the things to do list. I'll try to do some more testing tomorrow morning from the basement.