I have an opty 165 CCBBE with 2 gis DDR 550 512 x 4 3HTT mem 133 265 GHz blue screen or PC restarts, voltage 1.35 this is a good stepping I should get at least 2.7! With lower multi at 800 I can get to 305 x 800=2440 HELP
Hmm, I would expect you should have no probs getting up to 2.7-2.8 . Try backing your mem divider off one more setting, see if that helps, but other than that, Id say you must have found the ceiling.