Most of the 45nm mobile chips are TjMax=105C including the X9000 CPU.
http://processorfinder.intel.com/det...px?sSpec=SLAQJ
http://processorfinder.intel.com/det...px?sSpec=SLAZ3

Intel doesn't yet have any TjMax data listed for the Q9100 mobile CPU here:
http://processorfinder.intel.com/det...px?sSpec=SLB5G

But they do list it as TjMax=105C here:
http://ark.intel.com/cpu.aspx?groupID=37033

Now the only problem is that even with the correct TjMax, there is no easy way to calibrate a mobile processor. The amount of error in some 45nm sensors borders on the obscene so your reported temperatures may be little better than what a random number generator would display. For this reason and the fact that these sensors can bottom out and get stuck at temperatures as high as 50C, Intel doesn't recommend using these sensors to report absolute temperatures.