Information processing apparatus and control method

A method for controlling an information processing apparatus including a chassis that houses a controller, a plurality of temperature sensors, a first heat dissipation fan, and a second heat dissipation fan,

• the first heat dissipation fan and the second heat dissipation fan being disposed within predetermined ranges close to one end and the other end, respectively, of one side face of the chassis;
• the first heat dissipation fan and the second heat dissipation fan are configured to blow air at least in directions facing each other,
• the information processing apparatus is with:
• a first control mode, in which output of the first heat dissipation fan and output of the second heat dissipation fan are controlled equally;
• and
• a second control mode, in which an output ratio between output of the first heat dissipation fan and output of the second heat dissipation fan is controlled to be variable,
• the method comprising:
• selecting, by the controller, the second control mode when a first temperature detected by a predetermined first temperature sensor of the plurality of temperature sensors is lower than a predetermined first reference temperature, and a second temperature detected by a second temperature sensor close to one of the first and second heat dissipation fans is higher than a predetermined second reference temperature.