How easy it is and how simple it is when you have the right equipment, and the right motivation to do it! In the following link you will find a nice project of the company at hardocp who decided to try their luck with a Pentium 4 3.06Ghz processor, a processor that is already equipped with high power and high performance, but probably certainly not enough for the company where they decided they must see it work soon at 4.5Ghz! This is after their previous experience stopped at 4.2 Ghz (yes you can be sad for them!). The following article details all the steps that had to be taken to get to the killer speed and their cooling method. Definitely worth a look in the next article just to see some results of tomorrow's computer performance, and also to see the expensive cooling solutions that got there, and how it's all compressed into one package.