my phone went off then I power on my Toshiba laptop at night then I plug my phone for it to charge mistakely I went to bed in the morning hours the PC has went off then wen light came I plug it to charge then the charging led light, but when I power it on the screen don't display and fan not rolling only the power button led light I have clean the RAM but still and I have also change the RAM still not displaying. Plz I need help