hey my cpu and mouse is turning on, but my keyboard and monitor stop respondin g. i already try to plug the keyboard to other pc and it works . what should i do ?

That's extremely little information for us to work with.

What PC have you got?
Have you had any power cut's or surges recently?
Do you get anything at all on your monitor?
Do you get any beeps?

We can only work with the information you supply us with.

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