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.

 
 

PowerPC Interrupt Extension

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PowerPC Interrupt Extension -- If you've been seeing inexplicable hangs or momentary freezes on your Power Mac, Apple might have an answer for you in the new PowerPC Interrupt Extension. Drop this in your System Folder, and it fixes one known cause of "long interrupt latencies" - basically, where the computer sits around waiting for something more important to happen. It's difficult to say what specific problems this extension will fix since so many programs can be affected, but reports indicate the extensions fixes formerly-reproducible problems with some games, telecommunications software (including PPP), and audio/video editing tools. This extension requires a Power Macintosh and System 7.5.5. [GD]

<ftp://ftp.support.apple.com/pub/apple_sw_ updates/US/mac/System/Other_System/ PowerPC_Interrupt_Extension.hqx>

 

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