Hi i have a emachine e440 laptop and its not powering up. When you plug the ac cord the light indicator indicates that there is power in the board .but it wont boot fan wont move no activity i have it stripped with main conectors plugged . I tried the holding button for 45 secs and 1 min with no battery and ac then plugging ac only still no response even holding button and plugging ac while holding button no response power light on button lights up but board has no response