I just replaced an Asus P3B-F with one of these. My PIII-500 would only go to 560 on the P3B-F but it's running nicely at 615 now. I think it will go even higher with better memory, it posted and got all the way into Win 98 at 667 (133 BUS) then locks up. I'm going to try some good PC-133 memory and see it that is what is holding it back, my old PC-100 might be topping out at 124.
Rex