Clicking Hard Drive

Clicking Hard Disk Drive

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Recovering  Data from a clicking hard disk drive.

The most common hard disk drive fault symptom we encounter is “hard drive not recognized” by the computer as a consequence of the hard disk drive making sharp clicking noises. In the majority of cases this type of clicking noise is a consequence of the hard disk drive  being dropped, knocked or mistreated. In a minority of cases the clicking noises are as a result of the hard disk drive overheating or symptomatic of the HDD  firmware becoming corrupt.

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Clicking Hard Disk Drive Audio

Clicking Hard Drive

What happens  when you drop a Hard Disk Drive.

When you drop or knock a hard disk drive the likelihood is that you will disturb the read write head assemble enough to interfere with the factory settings. In worst case the knock will cause the read write head slider to vibrate against the platter surface and then remain at an inoperable distance .

In both scenarios the hard disk drive will present with a sharp clicking noise. In the data recovery industry we refer to this as a mechanical failure. The illustration shown of the hard disk drive opposite, is adequate in understanding the nature and cause of a clicking hard drive and the reason this condition is responsible for its failure to operate correctly.

Latest  laptop and external hard disk drives include sudden motion sensors (SMS) that facilitate the auto parking of the read write head assembly  in order to prevent permanent damage and drive failure.

Hard Drive Clicking Noise.

The noise is produced when the operating system or BIOS sends a message over the hard disk drive interface (SATA or IDE) requesting that the hard drive initialise. For the hard drive to initialise successfully the platter motor must rotate at a precise speed. The motor speed setting is a function of semi permanent data written to the hard disk platters during manufacture and transmitted by its read write heads as control data to the device servo circuit. If control data is not available (head failure) the head actuator will return sharply to its home position with a distinctive “click” and the motor will spin down. The operating sytem or BIOS will produce an error report and a number of retries will normally take place, the result of which is a repetitive clicking sound. In the majority of cases the read write heads are damaged and will need replacing for the hard drive to become operational.

Clicking Hard Drive Repair and  Data Recovery Service.

Recovering data from the hard disk drive needs :

  • Compatible Read Write Heads.
  • Specialist Tools.
  • Trained Technicians.
  • Clean air ESD compliant environment.

Once dis-assembly/reassembly  work is completed the hard disk drive must have other functional control data attributes restored such that the hard drive can read the raw data as written to the disk drives platters in what is called data sectors.

Specialist test gear is then used to extract and transfer this data to an alternative digital storage environment where its native file structures can be examined and tested using applications such as Word, Excel, Sage, Photo Shop etc.,

Once your data has been examined and tested a file listing will be made available to you, your data transferred to an external hard disk or similar ready for transportation.

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