Due to a slightly different design (has to do with the L2 cache module), this processor card will not work in the still very popular (PPC 604 and 604e using) 7500/7600/7300 series, but just in the not-so-widespread more high end 8600/9600 series (probably in the 8500/9500 series also, I am not sure).
The 8500 ... 9600 series went from 200 to 350 MHz 604e's, as far as I remember.
Walter.
[This message has been edited by Walter J. Ferstl (edited 03-05-2001).]