I have an unlocked 3.4E (478) that I was going to put on an ASUS P4C800-E. I was looking at the ASUS website, they say the highest FSB is 258. Since this chip is an unlocked engineering sample, I want to turn the multiplier down as far as possible and the FSB up as high as possible. Does another company make an OCing mobo with higher FSB options? I planned on using Corsair XMS PC4400, which would let me run a FSB upwards of 275. Thanks for the help, and don't let the n00b fool ya....I was Hard before there was a logo. 