I have a xp 2600 that I had oc to 2.26 with fsb 180 at 1.675 and it would pass all three prime tests and has been stable for months, now I am seeing how far I can push it. so I have it at 2.3 with fsb at 185 with 1.725 volts but so far it passes the small ffts and blent running for about 3 to 4 hours, but it fail the in place large ffts with in 15- 1 hour. I wondering if I should bump up the volts a little more or just leave it alone. any suggestions thanks