check ur bios,
it has this option in Power management section.
also u can use Xteq software for optimisation of ur pc.
it has the setting somewhere in power management sectiom.
hock
use better subjects instead of "help me", "uuuah", "bang-bang" or similar lines free of any meaning. It will increase the number of people which might take a look at your question and help you with your (technical) problem
The meaning of a subject is to summarize the content of the following text to ONE major statement which makes people curious to read the rest