I have been recently having this problem where as I am using my computer the video signal is suddenly lost, but the thing is, my PC is still running. All the lights and fans are still running, but there is no USB power. I can only restart my computer thru the power button and that seems to be the only thing fixing the problem, for about 10-20min. I had a spare HDMI cable and used it to see if my cable had gone bad. The problem still occurs. I am running a dual monitor display and I unplugged one to see if I am overload my graphics card. This has seemingly fixed the problem but I would like to still use my other monitor. Anything anyone can think that I could do to fix this issue? PSU CPU Mobo or GPU?