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;
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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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