Question about Seagate Computers & Internet

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My Seagate harddrive is recognized by my basic levels, BIOS and CMOS, but is not assigned a letter in Windows. Also, I cannot mount and browse in DOS. When I run SeaTools, again, the drive is recognized (serial no., drive size, etc). After running the diags, error code A99FDC5E is displayed and notes that there may be damaged sectors. I have actually purchased a donor drive for head and/or platter replacement - however, I have never actually performed either. Any help would be greatly appreciated. Thank you in advance.

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  • Luke Aug 01, 2010

    I believe that I have the general technical know-how to complete a platter repair. Can someone please tell me what this error code implies is the problem? Is this the platters or the heads or something else?

  • Luke Aug 01, 2010

    I'm not looking for a long-term fix, just long enough to save one file... can anyone give me some guidance based on my comments?

  • Luke Aug 01, 2010

    I need to recover some data from this drive. Only one file first, then thousands if it can handle it.
    You should also be aware that I have connected this drive to several other computers, including trying a SATA external adapter. Windows will beep as though it recognizes that I've plugged the drive in, but it does not show up in my storage management or My Computer areas. And, when I use the external adapter, I get a "click and beep of death" whereas when I attach directly to the motherboard, it sounds relatively normal - although I can hear the heads repeating the same pattern over and over.
    Are you suggesting a format to fix the bad sectors? Then, using a data recovery software tool to recover my files?
    Like I've said, I have a donor drive that I'm prepared to use if I need to.
    What would you do?



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Hi! Hows it going?

Posted on Aug 02, 2010

  • Luke Aug 02, 2010

    I'm ok, you? I just can't get a definitive answer as to whether it would even be beneficial to attempt a platter or head replacement on this drive. Have you any other thoughts?

  • dj_relly999
    dj_relly999 Aug 02, 2010

    Well if Im in the situation I'll reformat the drive then use a file recovery program to retrieve the files. Its the only choice we got since the drive is busted that only a reformat can resolve.


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Hello there Luke,

Here is what you do:

1. Right Click your My Computer or Computer and choose Manage.
2. It will open you the Computer Management window.
3. Click on the Disk Management and wait until it shows you the list of disk drives on the right side.
4. When you see your Seagate harddrive, right click to its partition (the white area) and choose change drive letters and paths.
5. Follow the steps and assign a drive letter you want.
6. After applying changes, you will now see the drive letter for the Seagate on your windows explorer.

Should you have any questions, please let me know.

Posted on Aug 01, 2010

  • Luke Aug 01, 2010

    No, this is a problem with a damaged drive. I tried what you recommended a long time ago. I'm at the point now where I may attempt platter and/or head transfer. Do you have any idea what the Error Code stands for: A99FDC5E. Is is head or sectors, etc?



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