Apple Mac Hard Disk Complications:
As popular as Mac computers are they still suffer the same fate as Windows-based PCs when it comes to their hard drives and other storage devices. Complications arising from hardware failure include being unable to read or write to the hard drive and as a result we have been asked by many Mac users to help recover data that might otherwise be considered lost permanently. As with a PC hard drive, hardware failures such as those involving the spindles, motor, Read/Write heads and/or the platters and their thin coating of ceramics or glass, can render the drive useless. However we at www.cambridge-datarecovery.co.uk can utilise sophisticated recovery software alongside years of experience to help recover data and back it up to a media of your selection.
Questionable Boot Up Using A Mac System:
Apple Macs can sometimes display warnings when they are starting up that something is wrong with the disk. This is what Apple themselves call ‘Prohibitory Signs’ and as such the sight of one normally has a Mac user reaching for the operator’s manual in order to find out what each symbol means. Generally the most popular (or unpopular) symbol is the ? which means that the boot up files on the drive are either missing or have been corrupted. These files may have been corrupted as a result of an incorrect deletion or format or because they were situated on part of the drive that contained bad sectors. We often find we are called upon by our Mac-using clients to help retrieve data from hard drives that have been inflicted with problems as a result of start-up file damage.
Electrical Damage to your Mac HDD:
The Apple Mac, just like any other kind of computer, is susceptible to damage from an overload of electricity that might be caused by a power surge. Whilst we recommend where possible that all computer users use a surge protection unit, it is not always the case that a user is in a position to and as such an unforeseen increase in the amount of electricity fed into the computer can cause untold damage to the components on the motherboard such as the CPU, the memory, graphics card etc but also to the hard drive and its corresponding PCB. As printed circuitry is very fine and made up of delicate chips and capacitors, high levels of electricity can cause it to melt or crack, rendering it impossible to send information and onboard commands through the hard drive.
Apple Mac & Third Party Firmware Stumbling Blocks:
Firmware can be found on the Mac hard drive, written to the platters, or saved in the form of a ROM chip on the PCB. The firmware acts as a miniature operating system that controls how the hard drive functions and at what speeds it reads and writes information. As well as these factors, the firmware allows the motherboard to acknowledge the existence of the hard drive and how it should be seen in relation to the other devices within the computer. A failure on the firmware may result in the drive not spinning at the correct speed which can have a knock on effect and render the platters useless as a slower or higher speed may cause them to spin out of control.
Mac OS Failure To Recognise Or Access Internal Hard Disk Drive:
As with a Windows-based PC the hard drive of an Apple Mac fail to be recognised if there is a problem with the operating system. While the operating system is designed to compute the existence of the hard drive and how they interact together, problems can occur if important system files on the drive are damaged. These files can be damaged as a result of problems with sectors on the disk as well as how the physical volume of the drive is calculated. Failure on the behalf of the operating system to calculate the correct volume of the disk may lead to failings in the saving or reading of data.