- Joined
- Sep 13, 2009
- Messages
- 212
- Reaction score
- 1
- Points
- 18
- Location
- Pittsburgh, PA
- Your Mac's Specs
- 27" iMac Core 2 Duo, 4GB 1067 MHz RAM, iPhone 4S
27" C2D iMac... Whenever I shut down there is a seemingly electronic buzzing/humming noise coming from the top left of the machine. If I pull the plug while it is off, a split second later the sound stops and also right when I press the power button to turn it on, the sound stops immediately. So the noise is only made when the machine is shut down and left plugged in, does anyone know whats going on? Thanks