After all, it is rated at PC3500, has a lifetime warranty, and is roughly the same price as Corsair. If you buy it, it fails to perform, you return it. Even if it is OC'ed lower speed memory, it still has to run stable at PC3500 speeds. I'm just curious, cause I know I can go higher than 156fsb with my 2.4b, but my Mushkin PC2700 is maxed out at 412mhz.