After upgrade to Lion OS, my MacBook Air is noisy (Heating)

after upgrade to Lion OS, my MacBook Air is noisy (Heating)

Hi there,
I am sorry to hear that.
It seems that Lion's "demands" regarding processor power and RAM are significantly higher than those of Snow Leopard. I guess there is very little you can do - except maybe (like many of us) hope for a less processor-cycle hungry 10.7.1 update.
Moreover, if you have processes like Time Machine, Spotlight or - say - Backblaze doing extensive work in the background (as they do when you switch them on for the first time), that will also eat up a lot of processing power.
Finally, there are a lot of hardware gadgets called "notebook coolers" which are very often simply metal plates which help conducting the heat away from the "underbelly" of your MacBook Air.
Hope this helps a bit & good luck!

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