Seen this ages now.
Pause at 51 secs. You'll see that the fire explodes from underneath, so it makes me think of a small fire cracker.
The hole's predrilled.
You'll need to zoom in and play with it so you can see the image. Windows Media movies are like that.
Another thing is: Look carefully when you pause on 10 secs. The VGA wire is white, because the power pack is on the left. The GPU's VGA plug is black.