YOu can run that processor on most boards that supply dual voltage. Even the earlier Pentium MMX boards that ran at 2.8v core will usually work. You can run it at 6x66.6 if needed using the 2x multiplier, which is converted by the CPU to 6x. And the core voltage of 2.2v, well, 2.8v is tolerated with a larger cooler, I recommend a cheap Athlon cooler.
The reason I mention compatability with older non-compliant boards is because of the price difference-the older boards cost aroun $15-20, while the newer proper boards cost around $50-60.
What's the frequency, Kenneth?