150 could be the FSB but that's set too high. Did you set that your self. Also you should not be able to run a 2500 at a multiplier of 11. I think the multiplier of the 2500 should be 16 but these things change all the time and don't go up in any logical order. I used to have a list of all the current XP FSBs, multipliers, PRs and actual speeds but can't find it at the moment. Google is being dead annoying too. No one seems to want to give this kind of info straight.