I got a intel celeron d 2.13 ghz, fsb 133. i OC it to 2.43 @ 153(or 154..) multiplier 13. but when i go over 155, the POST starts, it shows no line(the first line is like processor:intel celeron ..bla bla bla.. ). and it restarts, and its again the fsb on 133 @ default. any suggestions? i have tryed upping Vcore( options are- default;+0.05v;+0.10v;+0.15.)|i have tryed all but with 0.10 and 0.15 it is unstable and giving BSOD'S.) thanks in your coming advice!!!