Hello guys!
I'm new into the whole fixing HDD scene. I hope to find some help here since I do have a severe issue with my HDD.

The HDD would one day just stop working as it should. It does turn on and I can hear it spinning but the "crackling" noise it would make when it loads stuff are gone. My system can detect that there are 3 partitions and according to disk manager it seems to be able to figure out the correct sizes of the partitions and the whole drive, however!

The file system is RAW and the drive is extremely slow, even making my system boot up really slow since it tries to detect it.

What could be the cause of this issue? Does anyone have an idea what I can do to fix it? Is the PCB dead?

Since BIOS recognizes the hard disk, and the OS recognizes the size and the existance of partitioins, the pcb is not dead, otherwise none of this would occur.

You probably have bad heads, bad sectors in the media, and possibly firmware corruption.

If the data is important, better to take it to a competent recovery expert. If the data is not important, just forget the drive ( it won´t get fixed ) and buy another.

And if data is not important at all but you would still want to try to recover it CLONE your drive to another one using HDDSuperClone and then run recovery software like R-Studio ON THE CLONE and save the data to ANOTHER 3RD DRIVE !!!

As you have a 7200.12 you might want to check with Victoria for windows or MHDD first if you can SCAN the start, middle and end of the LBA space. If not you might have translator problems and/or partial access problem and it might require further action to fix it prior to clone the drive.

If data is of any importance to you please do use the services of a reputable DATA RECOVERY FIRM Right NOW !!!! And don't send the drive to a regular computer repair shop for recovery .... And forget about the internet sollution for 7200.11 drives, DO NOT DO IT. You will mess your drive for good and price for recovery will be way more expensive.

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See http://www.hddoracle.com/viewtopic.php?f=59&t=1842&start=60#p10834

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A backup a day keeps DR away.

I'm in a situation where the data is very important but I simply don't have money for the data recovery service, I'ts quite a mess:/

I'm not sure what to take from fzabkars post.

If the data is very important, keep the hdd stored in a safe place until you get the necessary amount of money. Don´t play with it and risk your data.

Of course, it is your data, so ....

Just understand that anything you do to it can destroy it for good, or at least make it cost very much more.

Get a USB-TTL adapter (US$5) and show us the output from the drive's terminal port.

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A backup a day keeps DR away.

Can you provide an ebay link?