I've hit a wall at 300 FSB for some reason with a AB9 Pro. Have ran 1:1 on RAM, just no go at all. so my e6400 is sitting at 2.4GHz, am running RAM 2:3 so RAM is at 450MHz 5-5-5-15 at 2.1v. Have tried increasing voltages etc to no avail. Any recommendations on what to do?