Why dont you try to knock down the L1 bridge so that you can use 133 x 12.5 which gives you the 1.6g of Athlon XP 2000+, i think this way is better than running at 150 x 12.5, cos when you run at 150, it may causing a slow damage towards your other hardwares, such as VGA, PCI cards or HD. So in long run, i dont think it's a good way to overclock and run at 150 x 12.5, cos maybe it seems to be stable right now, but in long run, will it still maintain the stability? That's what i am thinking about

at moment my athlon XP1600+ is running as athlon XP 1800+ with 133 x 11.5 at a very stable condition. Maybe you should try this.