My keyboard randomly shutting down, Unable to play help please

I'm really pissed as the last ranked game I had my keyboard kept shutting down constantly, I couldn't use my skills and I lost the game also because of that. I don't know what to do, at the moment he is shutting while I'm writting why is this happening? I've tried plugging the keyboarding in every usb port I have and he kepts shutting down. I've updated the drives and still the same, its not the keyboard since i've tried a new one and it has the same problems.. it shuts down every 2 seconds What could it be? Please help....
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