External Drive not connecting

My Seagate 4TB external drive won't prompt me to enter the password I set to mount it, I recently used a basic encryption and set a password for it, I reinstalled Mavericks today and the hard drive won't give me the dialog box for me to enter my password to unlock and mount it.

Hi Chris,
this trouble is not unknown within the range of 2,5" external enclosures.
That's why most manufacturers put these extra USB power cables alongside the enclosure.
So, when a specific enclosure works with one cable on one computer, it does not mean that it will work on all computers with one cable, even within a specific line of computers (e.g. MacBooks).
Where as the ipod respects the USB specifications for power supply, the 2,5" HDs are intended to be inside a computer and do have a higher power consumption, especially when they are starting up.
So as long as the enclosure works with one or even two cables, they do work within the specifications.
Regards
Stefan

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I understand that you are having trouble with a System Recovery to a factory image using recovery disks. I am happy to help you with this.
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Performing an HP System Recovery (Windows 7)
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Let me know how it goes for you.
Malygris1
I work on behalf of HP
Please click Accept as Solution if you feel my post solved your issue, it will help others find the solution.
Click Kudos Thumbs Up on the right to say “Thanks” for helping!

USB External drive not showing in Finder, or on Desktop

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Correction: Title should be Firewire External drive not showing in Finder, or on Desktop.

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I was thinking it might be an issue with the drive needing too much bus power. On the newer iMacs, USB provides higher bus power than FireWire. That might still be the issue, even if the drives supply their own power.
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There is software you can try. Both have demos.
FileSalvage $90
Data Rescue $99
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Drive Savers
http://hard-drive-recovery-services-review.toptenreviews.com/drive-savers-review .html
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Shteeg wrote:
I connected it to the USB port and installed the software.
Installed the software? Please explain.
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Wow, no help at all. Thanks, Apple!! Another stellar performance. That's the last time I ever install an update as it comes up.

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External Drive not connecting

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