Cant hold key long while play games

[Koustav]

I have Asus H-61 mb lga 1155.I have faced a problem my keyboard output double or triple latter every single click.I don’t know why. Im trying my best but I cant resolve it.
Changing keyboard, changing power codes etc.
And I can't hold key for long while playing game.its not working properly.
Sticky key also turned off.

 

[Cycloid Torus]

Try http://www.dummies.com/computers/pcs/set-your-keyboards-repeat-delay-and-repeat-rate/