yeah,as rigor3 advises,and its true.I bought two cel633's from onvia.com last week and both hit 950mhz@1.70 vlts with the stock cooling on a retail cpu.This is on an abit bh6 with its bios flashed to the ss ver.With elcheapo pc100 ram.And these cels,well seems to me like everyone who has bought one from onvia hits 950.Both mine are retail,both say 08/30/2000 as the pack date from intel.Some other member thinks these are the cco stepped p3 core,by the pack date.