So I noticed this problem about a week and a half ago. When I would power up my PC, the case fans and lights would turn on the GPU would turn on. But my mouse and Keyboard and headset would not light up at all. On top of that the OS would not start up. Just a blank screen because the hdmi would not kick in. I have no idea what this could be. Any help would be appreciated. I also got a message after turning on the Pc. "All settings were reset to default values the previous overclock settings have failed.