Power button LED Blinks when I press power button.

Try removing one stick of ram if you have two and test one stick at a time in each of the two ram slots. Then test the second stick of ram in both ram slots this will tell you if you have bad ram or a bad ram slot. if it still doesn't work you need to consider getting out a multi meter and tearing open your computer and testing the circuit board starting at the power outlet and working into the board