Just bought one of these Inno3D GeForce GTX 780 iChill HerculeZ X3 Ultra DHS Edition and having some real issues with the voltages. If i overclock the memory at all then the core frequency drops off, the higher the memory clock the lower the core. Is this normal? It seems to be linked with the core voltage dropping too, but I'm not sure if the core speed decrease is causing the voltage drop of the voltage drop is causing the core speed decrease. GPU-Z is reporting power as the limiting factor on the clock speeds. BF4 FPS are shocking too and seem to be hovering around 30 FPS whether i run everything on Ultra or Low (2560x1600) any advice?