My regular supplier does a P3 coppermine in Slot 1 at 1Gig with a 133FSB I always thought that the FSB speed was determined by the chipset and not the CPU - so a CPU rated to run at 133 might work at 100. But I could well be completely wrong !! Tim -- Gllug mailing list - Gllug at linux.co.uk http://list.ftech.net/mailman/listinfo/gllug