Thanks man that would be great information. So let me back up here than lets suppose the AGP divisor is kicking in. My first G-4 got smoked at speeds above 166 I had it running on this board with 200 fsb to be exact I know.... But now when I go to the 166-180 fsb with a lower multiplier while windows is loading with the activity bar..... the screen starts to pixate. Like your overclocking the memory way to hard on the card. At lower speeds rt now Im running a 15 mulit with 144 fsb with the 4:5 memory divisor everything is hunky dorreeee. Go to 166,177,180 and I bite my teeth with no way of verifying the divisor is kicked in. Any knowledge on why my card is doing this with the only changes being the 166+ fsb would be much appreciated. Thanks again for the above post.