Mad Shirmps posted an article on Intel Dothan 780 Overclocking w/ LN2

At -190°C you might be surprised how high you can overclock a CPU, with a few liters of Liquid Nitrogen to spare we poured it over a Pentium M 780 to see how high it would soar. Of course we don't want to destroy our hardware so we'll show you how to prevent condensation to save your hardware from failure

Intel Dothan 780 Overclocking w/ LN2