Lacie HD will mount only on one usb port not the other

Discussion in 'MacBook Pro' started by roderick, Jan 20, 2009.

  1. roderick macrumors member

    Feb 16, 2008
    I have a Lacie external hard drive that only mounts when plugged in to the right usb port. If i plug it into the left one it just makes a clicking sound and fails to mount. I've plugged in other hard drives and devices to the left usb port and they work fine. What could be the problem? and how can i fix it?
  2. yippy macrumors 68020


    Mar 14, 2004
    Chicago, IL
    Is that drive USB Powered? The left and right USB ports do not have equal specs. One can deliver more power to USB powered devices than the other can.
  3. roderick thread starter macrumors member

    Feb 16, 2008
    yes it is usb powered. wow! i did not know that! kind of annoying really.

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