Any Problem Using Two External USB-Powered HDDs on rMBP?

Started Mar 29, 2013 | Discussions thread
James A.
Senior MemberPosts: 1,083Gear list
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Right USB port ejects external hard drive on Retina Macbook Pro
In reply to RustierOne, Apr 15, 2013

My 2012 Retina Macbook Pro ejects my USB 3 powered Western Digital passport drive randomly. I have done so much reading on this and the issue seems to be all over the map in terms of what actually causes this problem.

The interesting thing though is my drive only gets ejected on the RIGHT usb port. There have also been times where the right port has ejected my USB powered card reader. However I have no problems using an AC powered external USB 2 drive on the right port at all for time machine.

The issue happens purely at random while using final cut pro x or lightroom or my machine just sitting there. Sometimes I can use it for hours and other times it does it with in seconds.

I'm running on Mountain Lion 10.8.3 right now and have had the issue since ML. I didn't have the issue on Lion at all but I only had Lion for a day before I upgraded.

I have disabled my drives from sleeping and disabled spotlight. I have also turned off power napping. So I'm going to see if this fixes my problem. I don't understand as to why it would be only the right port though that does this.

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