One of the most common causes of hard drive failure surround power problems. Anything from power outages to electrical surges can cause major problems for both computers and hard drives. Hard drive recovery from electrical issues requires special tools and training. In the good old days all you had to do was swap the pcb board on the back of the hard drive and you were good to go. Hard drives these days require more advanced techniques to solve electronic hard drive failures.
Hard Drive Recovery From Power Surges
When a computer is subjected to a power surge many bad things can happen. The first target is the power supply. Not able to sustain more voltage than it was designed for, the internal electronics will fry. While any boards that are plugged into the motherboard are likely victims, devices that are plugged directly into the power supply usually are the worst hit by a surge. When a surged disk comes in for hard drive recovery often times the electronics are fused together making the pcb board unusable. The hard part is to isolate those electronics and replace the chipsets to not only power up the drive motor, but to obtain communication between the electronics and the platters.
It is almost impossible to replace pcb boards due to the proprietary microcode and encryption that is prevalent on newer drives. That means that the hard drive recovery process is going to require advanced electronic work including soldering and un-soldering effected chips.
The best way for you to avoid this type of failure is to purchase a solid surge suppressor. There are plenty of power strips for sale that offer surge suppression, but you have to be careful to buy one that can handle at least 3800 joules.
Hard Drive Recovery Power Outages Failures Brown Outs
Almost as bad as a surge. a power failure can also cause quite a bit of damage to both your computer and your hard drive. A computer that gets shut down without proper sequencing can cause damage not only to the mechanical hard drive, but to the data on that disk. Most programs can’t restore from a dirty shutdown, or be rebuilt from a power outage. Another physical hard drive recovery issue from power outages is within the electronics within the disk. Power supplies send out an expected amount of voltage to the hard drive. Insufficient amount of power can cause the motor speed to fluctuate and sectors to be damaged.
A sudden stoppage of the hard drive without proper shut down could cause the heads to crash on the platters which damages the heads or worse, scratches the platters. This will lead to a clicking hard drive and data loss.
The best thing you can do is to buy a battery backup. A 600W 1 hour battery backup will keep your computer and monitor running long enough for you to institute proper shutdown. This can save you a lot of heartache and ultimately hard drive recovery!