I shut down my pc and forgot to unplug it and i took out one of my RAM sticks and since doing that my pc won't boot even after putting it back. When i power it on everything is on and the fans are working but the pc won't boot up and after a minute or so the power supply's fan start making a very loud noise and seems like it's gonna blow up so i just unplugged the pc . Can i fix this? If not how much would it cost me ?