I have a Shuttle 565 which will get me up to 4.0 for a clock multiplier (with 83MHz). I would like to overclock my K6-2/350 (or just get to 350!), but 4 x 83 will only get to 333. (I have modified to get 2.2V, in case anyone wonders about that end of it)

I can't find much mention using the search about the BF2 pin, and how it changes clock multipliers. Could anybody enlighten me, and suggest how I should go about getting 4.5 or 5.0 (even with soldering)

Thanks