Hi I have a toshiba satellite L500, it isnt under warranty anymore, I had it plugged in and it just shut down by itself, the cords are fine and connected, I have another toshiba that I tested the power cords on, I dont know if my hard drive is fried, I dont know much about computers but now when I try to power it on, nothing happens, the light is orange and just flashes, nothing can be heard that is slightly powering up, is this computer dead? Do you have any advice of what I can do?