Patent ID: 8095332
Filing Date: 2012-01-10
Classification: G11B

Abstract:
1. A method for pre-heating a hard disk drive of a computer device, wherein the computer device comprises a power supply device, a microprocessor, the hard disk drive, and a data memory unit, the hard disk drive including an internal temperature sensor, an external temperature sensor being arranged at a first preset location on the hard disk drive to detect a hard-disk external temperature of the hard disk drive, a heater being arranged at a second preset location on the hard disk drive, the data memory unit storing at least one hard-disk activation temperature threshold and a preset compensation value, the hard-disk activation temperature threshold being a lowest safety temperature that the power supply device is allowed to supply power to the hard disk drive, the preset compensation value being defined as a preset difference between the hard-disk external temperature and a hard-disk internal temperature, the method comprising the following steps: (a) starting up the computer device and activating the external temperature sensor; (b) detecting the hard-disk external temperature of the hard disk drive by the external temperature sensor; (c) determining relative level of the hard-disk external temperature and the hard-disk activation temperature threshold by using the microprocessor; (d) supplying power to the heater from the power supply device to heat the hard disk drive and prohibiting activation of the hard disk drive when a result of the hard-disk external temperature subtracting the preset compensation value is less than the hard-disk activation temperature threshold; and (e) supplying power to the hard disk drive heater from the power supply device and activating the hard disk drive and the internal temperature sensor thereof when a result of the hard-disk external temperature subtracting the preset compensation value is equal to the hard-disk activation temperature threshold.