When I press the power button the lights and fan come on but the screen stays black I have checked all the cables switched them out and even tried a different monitor but nothing worked. I tried to Reset and update the BIOS in Windows 8 but it didn't help either. Also, when I try to turn it off the front power light blinks and when I unplug the power cord the power light and the led light on the back stay on for a few seconds(maybe longer than they should). Someone please help!
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