I myself have my 2nd pc verclocked from 1200mhz to 1345mhz and its run at that stable for 2 years my main pc athlon xp 2000 is locked so no overclocking can be done at the moment but this has an asus motherboard and it says it runs at 1666mhz at boot and is set at 133 bus which means its at 266mhz and even the ipanal i have says 1666 but when in windows the truth can be got by using a cpu program from amd it says the real speed is 1687 and 135 bus which means 270mhz other software gives same result so asus overclock this board slightly and dont tell you . :-)
