well its not only CPU which needs to be cooled.. there are hell lotta other things like the SB and NB, Memory DIMM's , voltage regulators.. blah blah blah.. motherboards made these days are soo poorly refined when it comes to cooling...most of them dont even have a fan for chipset. Even tho the manufacturer claims they are designed for fanless operations.. i dont think that anything which is hot enough to hurt when touched can provide efficient operation in the world of semiconductors..
anyway..if i can shove the whole PC in deepfreezer.. then i can sure clock the hell out of it.. of just go buy a faster one and save urself the hassle