What is the highest multiplier and FSB that it supports. I have (had) this board and I didn't know it even supported higher than a 120. I had a 100 in it before I ditched it. For me it was a system pull and I never really had a manual for it. Actually, come to think of it, I don't recall it supporting the split voltage required for the MMX chips. I'm hoping someone will correct me if I'm wrong (which is always a possibility and I won't be offended.)
Requirements to support Pentium-MMX processors:
FSB - 66MHz (any board supporting Pentium-100 has it)
Multiplier - 2.5 for 166MHz, 3 for 200MHz, 3.5 for 233MHz (but you can use a 1.5 mult, and the processor will interpret it as 3.5) voltage - split voltage: 3.3V out, 2.8V core. If your board can't support that, you're out of luck.
If you have the right voltage, you may want to consider some AMD K6 instead - I understand some older boards support the 400MHz (mult of 6, but you set the board as 2)