Positioning To Prevent Shortness Of Breath In Picture Best Position To Prevent My Xbox360 From Over Heating?

Best position to prevent my xbox360 from over heating? - positioning to prevent shortness of breath in picture

I have a glass table with a lot of air around him.
I do not know whether to keep either vertically or horizontally.
horizontal when the white side of a fund could be hot, and when reporting on a large vertical opening in the ground. I have also heard that they can scratch vertically.