I just got my P4B533-E (gave up on the S8X) yesterday (power supply comes in today) and now I see the P4S8X is available, should I send back the E (bought it at googlegear so shouldn?t be a problem to return, except for the 15%) and get the S8X or just keep what I have. I like the serial ata, and ddr400 (and official 333 support) on the S8X, but I bought a 2.26 and want to run it at 150mhz-170mhz (See how far it goes, pretty good case cooling), and if this board has the same problems as the abit (wont due more then 143mhz) then it is not worth it. I do have enough time that I could order it, try the E and see how far it goes, then when the board comes in try it and see how far it goes. However I am going back to school in less then 2 weeks so the more time I spend on this the less time I will have to pack everything else, and I don?t want to be stuck paying for both boards. Any suggestions would be appreciated.