Question : Problem: Recover Data/Repair damaged hard drive with over tension?

My hard drive has been damaged due to a "peak of tension" (I dont know the expression in english), basically, there was at night an over tension in the electric flow and the computer appeared disconnected in the morning, and when trying to reboot, the motherboard wouldn't recognize it, when trying with a new hard drive, it would be recognized, so this means the hard drive has been damaged with the electricity overflux...

Is there any way to repair it or to recover the info?? I assume the info cant be totally lost for such a simple issue, it should be something in the "interface" between the disc plates with the info and the rest of the computer...

Answer : Problem: Recover Data/Repair damaged hard drive with over tension?

>> Is there any way to repair it or to recover the info??

First it has to be recognized by the BIOS.  If it isn't then ... see next paragraph.  If it is then there are a variety of utils that may be able to pull the data off.

>> I assume the info cant be totally lost for such a simple issue, it should be something in the "interface" between the disc plates with the info and the rest of the computer...

This is the drive board you are talking about that is at the bottom of the hard drive.  If something is blown here you go find another working hard disk with the same drive board.  Do the board swap and hopefully if nothing else is damaged you can recover the data.

However assuming you find a hard disk with the same model number as yours there is no guarantee that the drive board is the same.  Manufacturers aren't necessarily consistent.

You can send it off to the driver recovery experts but they are talking money here.  Big bucks.