Patent ID: 8055392

Claim:
An electronic device comprising: a first radiator which dissipates heat transported from a first heat generating portion via a first heat transport unit; a first fan which rotates and sends air to the first radiator according to a first driving power; a first temperature measuring unit which measures a temperature of the first heat generating portion; a first adjustment unit which adjusts the first driving power in accordance with a driving condition corresponding to the temperature measured by the first temperature measuring unit; a first rotational speed measuring unit which measures a rotational speed of the first fan; a deviation value calculation unit which calculates a deviation value from a normal boundary of a relationship between a power index associated with the first driving power adjusted by the first adjustment unit and the rotational speed of the first fan measured by the first rotational speed measuring unit; a clogging detection unit which detects, based on the deviation value, clogging in an air duct through which the first fan takes in air outside a case and sends the air to the first radiator; and a deviation value correction unit which corrects the deviation value in accordance with aging of performance of the first fan to compensate for deterioration of a clogging detection capability of the clogging detection unit caused by the aging.