Question about Hitachi Deskstar 7K80 Hard Disk 80GB, 7200RPM, ATA-6, 2MB Cache, Desktop, 20PACK (HDS728080PLAT200A3021020PK) Hard Drive

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Sticking? When turning power on the external HD keeps making a constant pulsing sound. it does not load up? The HD is full and i wanting to save data on it? or at least transfer. Is the HDrepairable without losing data?

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  • peterdr1953 Feb 03, 2008

    yes will try anything once/ If only could get a list of what files I have lost woul be useful

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Hi,

Most hard drives (whether external or internal) that produces a "constant pulsing sound" indicates a mechanical problem. Often this is the head arm trying to move from its position but failing to do so. What you are hearing as pulses are when it slaps back to its park position.

Should this be the case, am afraid that the HD is a goner. The normal course of action is to replace. If the data inside are mission critical, your only course of action is to avail of those data recovery by firm specializing in such but they are rather expensive.

Trying to use "data recovery software" might prove to be futile since as earlier stated, the problem is mechanical in nature.

You can of course still give it a try.

Should you feel adventurous, would be willing to experiment and gamble, pls post back as I may have not a permanent solution but a "down & dirty" trick of making it run long enough hopefully to get some of your data back. Again, this is a "hit or miss" and should only be considered if all else fails and you really want to get your files back.

Hope this be of some help/idea. Pls post back as requested, how things turned up or should you need additional information.

Good luck and kind regards.

Posted on Feb 03, 2008

  • Louie  Role
    Louie Role Feb 04, 2008

    Hello again Peter,

    Gambling in this instance is either "you get what you want or you loose everything"... having said that, pls:
    1. physically remove the HD from its external enclosure exposing and thereafter removing the cable connector (SATA or IDE) and the 4-wire power connector. You may need to pry it since some manufacturers use a glue of some sort to lock it in place;
    2. place the HD in question in a zip lock plastic bag (used in sandwiches). Try to get as much air as possible out of the plastic bag. Freeze the plastic bag with the HD inside overnight (the fridge's freezer would do just fine);
    3. on the following day, sans the HD, power up the PC, let it boot and run your Windows normally; Open "My Computer" and click on your C drive, create a new folder "whatever", once created, open and leave it so. Open another instance of "My Computer", let it be for the time being;
    4. Remove frozen HD from freezer and from the plastic bag. Rather quickly, connect the attachments/connectors in place to the HD and plug in the USB to the PC (of course power must be applied to the external HD);
    5. Wait for the HD to be recognized by the PC and shows in the 2nd "My Computer". Once shown, right click to "Open" and do the normal copy/paste not cut/paste. You have to do this quickly since soon as the HD reaches room temp, chances are the HD will be back to the "slapping" mode;
    6. If the partition is gone or if the PC says the HD is "unformatted", you need to be running a recovery software such as "GetDataBack" which of course would be better if you have downloaded, installed earlier and be running when you hook up the defective HD.
    7. The above steps (except # 6) could be repeated as many times as you want if you are successful in the first try.

    I hope you success... Pls post back any developments.

    Cheers.

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