My AMD K6-II/550 refuses to go in 600 at least on
an asus P5A not even with 100x6 the best I got it to do
is 574. Posting from it now it is powerful for being a super 7
though.  I am using 115 Mhz FSB x 5  the 120 FSB will
give to high PCI clock.  the 512k cache is nice.
It handles games well with double voodoo IIs
Trying the Crimson Skies demo now without any
problems, quite fun game.