Question Black screen after restart

May 26, 2020
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So I was playing videogames with my mates and i wanted to go into the motherboard settings to increase fan speed. So I restarted my computer using the Windows button instead of the restart button on my computer. The screen turned off and all the fans were still on, so I force shut down the computer by holding the power button untill it turned off and turned it back on. The fans and their lights turn on, the motherboard light turns on, the gpu fan turns on, no power to my keyboard and mouse. I turned off everything, unplugged everything and dusted the inside and have the same result. I've built and custom pc with these parts :
MSI B450 tomahawk max mobo
AMD ryzen 2600x
Corsair vengeance ram 2×8
Corsair vs650 (650watt)
EVGA GeForce RTX 2060 Ko ultra
512gb ssd and 2tb hhd