When I went to go work on my XPS 15 it was found with fans running on high and the laptop was extremely hot, but it was closed and should've been asleep in my case, in my bag. I quickly pulled it out of the bag and placed it in front of a fan. Now when I hold the power button down no lights turn on, nothing on the screen, no fan movement. I've tried seeing if the battery is just dead and charge it, but to no avail. Any ideas what's wrong?