Don't listen to that nut. I just checked the website, you can clock up to 500MHz with that board. Now for the revision stuff-board revision 3.0 and higher will support as low as 2.1v core and 4.5x multipliers. ALL REVISIONS will support up to 83MHz FSB, but experience has told me that 75 is often more stable, so you can try 83, but it may or may not work.
OK, now, K6-2 processors of satndard voltage will accept up to 2.8v core, as long as they are properly cooled. A socket Athlon or PIII cooler will fit, if you use a standard clip. I have done this a few times and have never had one fail from the higher voltage.
K6-2 processors faster than 350MHz will support the 2x=6x internal multiplier interpretation, meaning that when you set them to 133 they run 400! So if you set the bus at 2x75, the processor interprets this to 6x75=450! And at 83.5 you get 500!
So get whatever speed processor you want, you can set the board at 2x to get 6x, and set the bus speed at 66 for the 400, 75 for the 450, or 83 for the 500, and not even need to overclock!
Be aware that BIOS might give you a 2x number, because it is not programed to understand the higher numbers, but any CPU test, such as WCPUID, will give you the correct numbers.
Suicide is painless...........