My wii u is making a Very faint, and I mean very faint buzzing noise coming from what sounds like the three vents on the bottom if its horizontal or the left side when vertical. Please put your ear up to yours and tell me if yours does this? Also it is without a disc in. I made a video describing the issue. Turn the volume up and listen closely. Any Ideas as to what this might be?? Listened to my friends wii u his makes it too. Heres the video: