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macrumors 68040
Original poster
May 6, 2008
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I just got the high end 13" Macbook Air and Thunderbolt display. I will be running it 90% of the time closed lid connected to the display. I had read that it disipates heat through the keyboard, so am concerned about it getting to hot. I had an aluminum notebook cooler I've used with my MBP, that I am still using, so that should help, but just curious what the official word is on this.
 
I just got the high end 13" Macbook Air and Thunderbolt display. I will be running it 90% of the time closed lid connected to the display. I had read that it disipates heat through the keyboard, so am concerned about it getting to hot. I had an aluminum notebook cooler I've used with my MBP, that I am still using, so that should help, but just curious what the official word is on this.

Pretty much no heat dissipates through the keyboard so it is perfectly safe to run your MBA with the screen closed. As long as your CPU fan has proper ventilation (left side of the hinge) your MBA will be fine without a notebook cooler. I have never had any problems with overheating.
 
It dissipates heat through the rear vent. Some heat does escape through the keyboard but in general use you will have zero issues. Even with it outputting fullscreen flash video to my plasma tv and the lid closed it doesn't even get hot enough to make the fans spin faster so it stays silent.
 
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