US 12,248,302 B2
System and method for fan control across wide ambient temperatures
Donald W. Gerhart, Leander, TX (US); Alaric Joaquim Narcissius Silveira, Austin, TX (US); Eric Michael Tunks, Austin, TX (US); Balamurugan Gnanasambandam, Bengaluru (IN); Curtis Ray Genz, Round Rock, TX (US); Randy Alton Frazier, New Braunfels, TX (US); and Jeffrey Leighton Kennedy, Austin, TX (US)
Assigned to Dell Products L.P., Round Rock, TX (US)
Filed by Dell Products L.P., Round Rock, TX (US)
Filed on Oct. 19, 2022, as Appl. No. 18/047,830.
Prior Publication US 2024/0134350 A1, Apr. 25, 2024
Prior Publication US 2024/0231319 A9, Jul. 11, 2024
Int. Cl. G06F 1/20 (2006.01); G05B 19/4155 (2006.01); G06F 1/3296 (2019.01)
CPC G05B 19/4155 (2013.01) [G06F 1/206 (2013.01); G05B 2219/50333 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A data processing system that provides computer implemented services, the data processing system comprising:
a management controller adapted to, while operating, manage operation of the data processing system;
a heater positioned to, while powered, selectively warm a flow of a gas directed to warm the management controller;
a temperature sensor positioned to identify an ambient temperature;
a fan adapted to selectively generate the flow of the gas;
a thermal manager adapted to:
perform, using the heater and the fan, a startup procedure for the data processing system that increases and maintains a temperature of the management controller above a temperature threshold associated with the management controller while an ambient temperature is below the temperature threshold until the management controller begins operation as part of the startup procedure; and
perform, using the heater and the fan, a temperature maintaining handoff from management of the data processing system by the management controller to management of the data processing system by the thermal manager.