I have a C521 and last night my monitor suddenly turned off and every time I tried to turn it back on it would turn off again it kept shutting down. One of the online solutions suggested unplugging the CPU and then holding down the power button to clear out some bad memory or something. Now when I turn it on the light on the CPU stays orange and the fan is running and won't stop. Some of the issues I have seen pertain to the monitor and video card. I am going to test the monitor and I don't think that is the issue. Could it be the Power Source or the Video Card? Any help would be appreciated
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