A little something us old school garage mechanics knew about our computers was that the manufacturers didn't create a batch of CPU's with a specific speed in mind. They created a batch of CPU's and then rated them according to stability with a moderate amount of cooling.

What we knew is that if we increased cooling we could often increase the speed and maintain stability under the right conditions. Home users would be warned they would void their warranty, and shorten the life of our CPU's. However, we also knew that in most cases because of Moore's law we wouldn't be keeping our CPU for more than a year or two anyhow. We didn't buy our processors for longevity, we bought them for price and then wanted to jack the up the performance.