Question about Acomdata (HD250UE5-72) (HD250UE572) 250 GB Hard Drive

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Hard Drive doesn't show up

I have a new Imac, with OS 10.5.2, using my Acomdata HD as a backup with the Time Machine function. It was working fine for a few days, but the HD is no longer being recognized by my computer. The HD is on (steady blue light) but it doesn't appear on my desktop (I've tried my laptop as well, with no luck). I've tried all sorts of combinations: plugging it in after the computer is turned on, plugging it in before it's on, turning the HD off and then on again, etc. Please help!

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  • Antdog5 May 14, 2008

    I also have the same problem although my mac is a little older/

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Hi,

Try doing flea power & the power cycle.

1. Disconnect all the peripherals like keyboard,mouse,printer, scanner & monitor and power supply from the CPU.

And press & hold the power button for 2 min, it will release the flea power from the mother board.

Restart the system & check.

2. Disconnect everything.wait for 5-10 minutes and then connect every thing.

Restart the system.

If it does not resolve the issue then you can try this :

Just remove the registry key it happen when this key is corrupted.

HLKM\System\CurrentControlSet\Enum\USBSTOR

And delete all references to the external hard drive.

And also HLKM\System\CurrentControlSet\Enum\USB

and found the keys associated with the USB to IDE value.

After restarting the system, the drive shold be detected & configured automatically by the computer.

Good Luck.

Live, Love, Laugh.

Posted on May 14, 2008

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Posted on Jan 02, 2017

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Hi,

Appreciate the direct "Ask Me".

T your concern:
  • initially, pls verify that it is indeed an external storage problem rather than a laptop USB issue by trying other USB devices and determine if they are recognized and working;
  • disassemble the enclosure of the Acomdata external hard drive and remove the actual hard drive;
  • you would need the use of a 2nd PC, a desktop that could accommodate the HD from the Acomdata (IDE or SATA);
  • install the HD from the Acomdata as a Secondary Master or Slave internally to the 2nd PC;
  • boot the 2nd PC and determine if the HD from the Acomdata will be recognized as a local drive;
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  • temporarily save the recovered data in the 2nd PC. You can burn this likewise into a DVD backup should the 2nd PC be capable of that;
  • after recovery, re-partition and format the HD from the Acomdata while still attached to the 2nd PC;
  • should the re-partition and format be successful, you can transfer back the temporarily saved recovered files;
  • a nice, simple, fast and safe partitioning/formatting software is Partition Magic (unfortunately not a freeware but FREE TRIAL is available).
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Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards. Thank you for using FixYa.

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