The AZM will not allow you to adjust the multiplier, so yes, all you can do is up the FSB. It is possible to mod the board, but it is very involved and not for the novice. Also, you can try to change the default multiplier of your Athlon by modifying the L6 bridges, but this is also not that easy as it can involve cutting bridges. If you are planning to overclock, take a look at either the Gigabyte GA-7DXR or the Epox 8K7A/8K7A+..