Could it be the game that is causing the trouble? Cause some game runs fairly stable like the witcher 3. But far cry 4 is still the same dipping down to 600-800mhz and stays there. Barely even keeping the frames above 30 fps at 1440p ultra settings. I've tried dialing the details down and tried it at 1080p with low settings the fps is the same but the clock speed drop to 400-600mhz. I haven't patch my game yet. Still downloading the patch.