yes in order to up the CPU even farther you'll have to unlock the L1 bridges on the chip. There are several techniques to do this. The 1700+ runs at 11x. Unlocking this (if successful) may allow you a higher CPU rate. Than again it may not depending on it's stepping. I have yet to do it since I got my XP to run stable at 152FSB giving me 1672. There is no guarantee but if 1540 isn't good enough for you anymore, give it a shot and let us know what happens
😎 Save heating costs on your home, overclock your PC!!! 😎