Thoughtful, detailed coverage of the Mac, iPhone, and iPad, plus the best-selling Take Control ebooks.

 

 

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How Loud Are Your Mac's Fans?

When they get hot, Macs turn on various internal fans to keep components cool. The noise can be annoying, but just how loud is it? If you have an iOS device with a built-in microphone, you can download one of many free sound meter apps (search on decibel in the App Store) and see if you're subjecting your ears to a truly unreasonable noise level.

 

 

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Apple Recalls Underperforming MacBook Pro Batteries

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Apple has initiated a worldwide recall for some 15-inch MacBook Pro batteries that were sold between February 2006 and May 2006, due to lack of performance (and not due to safety risks, such as a string of recent Dell laptops that have caught fire). To identify batteries covered under the program, look on the underside of the battery for model number A1175 and a 12-digit serial number that ends with U7SA, U7SB, or U7SC.

 

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