I have this board with an Althlon T'bred 2400+
You can change the FSB to 166 easily, and if you get RAM of PC2700, that runs at 333. This will mean that both your CPU and RAm will be in synch. That is what I have done.
I lowered the multiplier to give me same Ghz. Was originally 133 X 15 = 1995 (2Ghz) now is 166 X 12 = 1992 (2Ghz)
I have ordered a new Heatsink, so I can change the Multiplier and overclock.
My CPU runs at 35-37C normally, and 42-45C Gaming.
I started with a multipler of 10 (1.6Ghz) to start and left it for a few days, then raised it gradually over about 10 days in all to get where it is now. I didn't want to have to buy another CPU.