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My Porsche Lacie 160GB disk no longer mounts on my Mac OS X. OS is fully up to date at 10.5.6. I've tried it with different firewire cables and on multiple Macs. One is a dual G4 desktop, the other is a MacBook laptop 2GHz Intel Core 2 Duo. I have never had a problem with the drive... The drive does not show up in Disk Utility... Thanks!

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  • davestys Jan 08, 2009

    Yes, it does powerup and the disk is spinning. The indicator light comes on. It just won't mount... This disk is relatively new 3-4 years. Light use...

    Thanks for your help - hopefully we can solve this!


  • davestys Jan 08, 2009

    How do I backup the disk if I cannot mount it? Thanks!

  • Bill Speer
    Bill Speer May 11, 2010

    Given that it is only 160 GB (mine is about 4 yrs. old and 250 GB), there is the possibility it has seen its last days. Does it power up? If so, can you feel vibrations from the spinning disc? Let me know.

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You need to back up data from the drive and then connect your drive on MAC you need to use mac utility to format the hard disk in Mac as some times it wont recognize a windows operating system...

Posted on Jan 08, 2009

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1 Answer

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Try a different "data" cable between your computer and the external disk-drive.

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If it fails there, then the unit itself has a problem:
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* the USB-to-disk-drive adapter (inside the casing) has failed;
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Disassemble the external unit, and remove the disk-drive. Connect it as a "slave" disk-drive in some Apple Computer, to see if the data on the disk-drive can still be accessed.

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Cash on the warranty!!!

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