It happened after the computer went to sleep and when I rebooted it still doesn't work. The problem started yesterday when I was ingame and the mouse and keyboard (via usb) stopped responding so I reset the power and it works fine. As mentioned above, today after it went to sleep both front and rear panel connections don't work but the GPU still does since when I plugged in my HDMI to the rear panel it doesn't display but on the GPU it works fine as usual.