Interesting discussion, you wouldn't think that O.C one of AMD's flagship GPUs would be so difficult, let me ask you what power supply you are using? also you know to only oc one part at a time right? O.C the GPU first to get a max before artefacts then turn down the GPD to start finding the limit of the RAM. if your jumping the gun and doing both at the same time there could be problems of you not finding equilibrium properly.