I have A Az11..It works..Good!..I know that Athlon(socket) Works on PC100..?...If i change my jumper to 133,will it default on 100?Im running 2 year old pc100..I have a stick of brand new PC133.Will it be better,OR will I still be in the same boat?????I know i need to get a better MB,but it works...Im happy with the way it works right now...So Is the 133 going to be better????