Japanese people don't stop to overcloking. Last stunning overcloking: Intel Pentium 670 Prescott (3.8Ghz default) forcing to run at 7GHz !!! The system was: ASUS P5WD2 motherboard, two 512MB RAM CORSAIR PC2-5400. OS who stand up to this speed was Windows Server 2003.

Interesting. I want one of those.

Source: in japoneze