Hi i have MSI KT266 Pro RU and XP1600, just want to know did u guys unlock it? Mine is unlock and i can run XP1900 at default voltage! Haven't tried to the max yet! Pls let me know what mtb u use and what temp and hsf u have? Coz newbie so want to learn fr u guys! Oh my temp idel is about 42/43 in no aircon room Full Load - dunno what software to use, may be someone can show me the link, so i can get it! Cheers!