So im very new to this. I bought a pc from best buy and everything was working fine. I hit my chair on my desk really hard and after that, every 10 or so minutes after power up my mouse keyboard and display would shut down. Now ( 1 day later ) i had tried unplugging and plugging a few cables and when i start up the computer the mouse keyboard and display wont turn on. The lights and fans all work but not the mouse keyboard or display.