press the power button, nothing happened?

When Press The Power Button, didn't on the CPU?

            If your computer doesn't on, when you press the power button on the cpu you need to check the following steps one by one.
 1) First you need to check your CPU power cable.

  2) Next, Check your SMPS (Switched Mode Power Supply). Check your SMPS [Click Here].

 3) After that the fan doesn't working the smps fan, you should need to change your SMPS, otherwise

     continue the next step.

4) If the above all are perfectly working, your motherboard having the problem. You should need to change 

    Repair your mother board.