Patent ID: 8868942

Claim:
An information processing device provided with a power switch, a heater unit, a battery, a CPU, an auxiliary storage device, and a power supply controller, the information processing device comprising: a first temperature detection unit configured to detect temperature of the auxiliary storage device; and a second temperature detection unit configured to detect temperature of the battery; wherein after supply of power to the information processing device is turned on by the power switch, if the temperature of the auxiliary storage device detected by the first temperature detection unit is lower than a determined first determination temperature T 1 , the power supply controller turns on supply of power to the heater unit to start heating the auxiliary storage device, and after the supply of power to the heater unit is turned on, if the temperature of the auxiliary storage device detected by the first temperature detection unit is higher than or equal to the first determination temperature T 1 and the temperature of the battery detected by the second temperature detection unit is higher than or equal to a determined second determination temperature T 2 , the power supply controller starts supplying power to an information-processing-device system including the CPU, but excluding the heater unit, and after the power supply controller starts supplying power to the system, if the temperature of the battery detected by the second temperature detection unit is lower than a determined third determination temperature T 3 , or if the temperature of the auxiliary storage device detected by the first temperature detection unit is lower than a determined fourth determination temperature T 4 , the power supply controller turns on supply of power to the heater unit.