Patent ID: 8009418
Filing Date: 2011-08-30
Classification: G06F,H01L

Abstract:
1. An information processing apparatus comprising: a housing; a printed circuit board provided in the housing; a heating device disposed on the printed circuit board; a heat radiation module provided in the housing, configured to exhaust heat of the heating device to outside; a first temperature sensor provided in the housing, configured to detect a temperature at a first position on the printed circuit board, the first position being close to the heating device; a second temperature sensor configured to detect a temperature at a second position farther from the heating device than the first position, the second position being located at an end portion of the printed circuit board, the end portion being shifted from a center position of the housing to a side wall of the housing; a temperature difference detection module configured to detect a temperature difference which is obtained by subtracting the temperature at the second position detected by the second temperature sensor from the temperature at the first position detected by the first temperature sensor; and a performance determination module configured to, in a case where the temperature difference exceeds a threshold value, repeatedly execute a process of acquiring a pair of a first temperature sample value indicative of the temperature at the first position detected by the first temperature sensor and a second temperature sample value indicative of the temperature at the second position detected by the second temperature sensor during a predetermined period from a time point when the temperature difference exceeds the threshold value at predetermined time intervals, and to determine whether a performance of the heat radiation module has lowered or not, based on a number of pairs of which difference that is obtained by subtracting the second temperature sample value from the first temperature sample value exceeds a reference value.