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Switcher Hangout (Windows to Mac)
External hard drives no longer visible
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<blockquote data-quote="MacInWin" data-source="post: 1098784"><p>The Mac detected too much current draw from the USB port and shut it down. Disconnect it and connect it to a powered hub. It should reappear, although you'll probably have to run Disk Utility to fix any problems coming from the shutdown.</p><p></p><p>If disconnecting it doesn't fix the problem, disconnect ALL of your USB devices and then connect them again, one at a time, until you get the message again. That last one you connect before the message appears is the guilty culprit.</p><p></p><p>The science is that USB ports, by definition, only provide a maximum of 500 mA of power. When you exceeded that limit, the Mac shut the ports down. As long as you continue to draw that much, it won't come back on.</p></blockquote><p></p>
[QUOTE="MacInWin, post: 1098784"] The Mac detected too much current draw from the USB port and shut it down. Disconnect it and connect it to a powered hub. It should reappear, although you'll probably have to run Disk Utility to fix any problems coming from the shutdown. If disconnecting it doesn't fix the problem, disconnect ALL of your USB devices and then connect them again, one at a time, until you get the message again. That last one you connect before the message appears is the guilty culprit. The science is that USB ports, by definition, only provide a maximum of 500 mA of power. When you exceeded that limit, the Mac shut the ports down. As long as you continue to draw that much, it won't come back on. [/QUOTE]
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Switcher Hangout (Windows to Mac)
External hard drives no longer visible
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