Some years ago I built a few notebooks that had 3.2E GHz Pentium 4s - the result was a catastrophe. 3.2 GHz has a TDP of 103W, which makes it very difficult to dissipate the heat. In any event, the Thermal Specification is 73.2 degrees, so the unit can quite conceivably get too hot to handle before the CPU dies. In fact, these Clevo units would end up discolouring due to the heat, and their intake fans would get absolutely clogged with dust from spinning at maximum revs whenever the load was on. The simple fact is, Prescott was a desktop processor, and it was even a hot and power hungry one at that. This was the exact reason why Intel developed the faster, cooler, Pentium M.

Anyway, there are some solutions. You should be able to find a notebook stand that will elevate the notebook just sufficiently that the fans underneath are not obstructed. You can also find strips of low profile cooling fans specially designed to sit under a laptop and blow cool air (even a hot summers day is cool by comparison) on the underside of the unit. Both these things can make a significant difference in keeping the unit cool, ensuring better stability and longevity.