The following lines were added (+) and removed (-):
Causes of Drive Failure* Physical Impact (dropping, or an impact to the drive)* Excessive Heat (not well ventilated, overheat, external heat exposure)* Electric Failure (motor)* Electronic Failure (board, chip)* Mechanical Failure (bearings, platter surface, contamination)Any mechanical failure of the disk, or physical damage inflicted to it will almost certainly cause attendant software problems, generally due to bad sectors. Data I/O performance can be negatively impacted by drive bearings causing the platters spinning up slowly or rotating at an incorrect speed. == Electronic / Board / Chip Malfunction ==