I've read up on the XP mobile CPUs and it seems that all the high oc's (2ghz to 2.8ghz) are IQYHA. Are there any other good steppings? I've seen IQXEA and AQYHA on the NewEgg pictures. Are the Athlon XP mobiles good overclockers in general, with the exception of extreme overclockers like the IQYHA's (800mhz o/c's), or is it completely dependent on stepping?