I have intended to do this since the day i bought mine. But it is not worth it as it will void my warranty. I dont have the guts to risk it. I will tho once the warranty is expired. Some couple of frens did OC their m9700 and guess what they reach like 11000 in 3dmark05 while the stock is somewhere around 9000+ to 10000 depending the cards used (some of us are just 2 x 256mb while others 2 x 512mb).