e4400 with bsel2 mod on an asrock conroe945g should be able to do 3 ghz, I am running a e4400 on the conroe945-dvi at 2.5 ghz right now, I will be doing the bsel2 mod on the e4400 soon. Its a good cheap motherboard with a bundled dvi si card. 3 ghz is the peak though since it doesnt have core voltage adjustments, but for 60$ it is good enough for me