Just oced my 2800+ as far as I could go and didnt have 1 problem. If using DDR400 RAM, just set your divider to 166 first, then keep upping your "fsb". If you hit 250, after that you should set your divider to 133 and lower your HT to 3x. Keep going and if you get to more than 300 "fsb", set your divider to 100 and keep going. I love this cpu I just got, Semprons are the KING of value man. 800MHz overclock, outperforming chips 2x its cost easily. Best 75 bux i've spent this year so far.