I have the same cpu and first off back down on the clocks. Put the base clock at 162 and keep the 1.24v on the core. That will put it at a solid 3.4ghz with 3.56ghz turbo. If it isn't stable at that then there could be a defect in the board such as the power vrm not working as well as his or you didn't get as good of a sample as he did. Power consumption really begins to spike after 3.4ghz.