I just built my first computer and whenever i try to boot it up it just a black screen on my monitor. i tried HDMI and DisplayPort. none worked. Its only the VGA light on. it used to never be on before when i tried first booting it up. I was never able to get it to boot up so i tried moving some things around. I think its my CPU messed up because a friend bent some pins and tried to fix it. I tried two graphics card it still shows red VGA light