http://www.ocforums.com/showthread.php?threadid=279392 for those of us who have boards with only a 4bit fid as opposed to a 5bit that link will help you to run your cpu at multi's 13x and up. in case you didn't know, a 4bit fid only allows you to chose from half of the multipliers. the half you get is based on the default multiplier of your cpu. this mod is only needed if you can't oc your fsb any higher and still have headroom on your cpu. i'm sure there's a wire trick to get the lower set of multipliers too if you need them instead. i did this wire trick in about 10 minutes and booted up first try with no problems. have my mobile barton running at 13x192 (2.5ghz) which is up from 2.4 at 12.5. i still have some headroom if i increase my voltage, i could easily get 2.6ghz if i didn't mind the heat. if you don't have a mobile or an unlocked chip this mod will not help you. if i come across a wire trick for the lower set of multi's i will post it asap.