I haven’t been following the world of processors much, but I just bought a 1.2 GHz (266Mhz) Athlon but the dang thing doesn’t work in my IWill motherboard. Now I have to send it back to them and get them to send me a 1.2Ghz (200Mhz) chip that should work, since I had a 1.3Ghz and a 1Ghz that both worked at 200Mhz. Maybe it’s just the chip though and a new one would work. Is it worth the hassle of sending it back again if it doesn’t work?