im not sure im getting it right, is the tbird to the duron what the p II was to celeron and what the p III is to copermine? also i have a mobo with slot and socket, is the socket locked to 66 mhz, its a tyan mobo from early this year, where sockets ever limited/locked to 66mhz/ or celery only compatability?? also back to the tbird question, ive heard of 600mhz durons being run at 1123 mhz, (that was with dual phase cooling), but any ways thats nearly double the manufacturers spec, does the tbird have the same scalability, or more so? cause from some minor research, the prices seem the same for equivelently rated chips, , oh and dont yell mobo failure, till you've eliminated case defects, snicker, my bro has this case (i picked out for him thought it would be cool, but its a piece of junk) the clip that heald the power on button had broke so the main button wasnt working right, and he was gonna run out and buy a fancy new mobo