Yes there is a good chance it won't let you. You can take a look inside the BIOS and see, it might let you push the FSB higher, but at best it will only let you control the FSB. It won't give you voltage control or control over the other settings you would need, so the best you will probably be able to do is only about a 5% boost probably.
Though that is with the best situation possible, its unlikely you will even have access to that much control.