By default it is disabled because it can create a perceptible non-linear motion sound effect on some fans or some assembly situations.ĪC0 Temperature indicates the temperature above which the fan start turns on at full 100% rotation speed.ĪC1 Temperature indicates the temperature above which the fan start turns on at the % rotation speed indicated by the FAN Duty Cycle (%) Above AC1 value. This is the standard way for the 3 wires fan to have a consistent reading of the speed. The algorithm set the speed fan to 100% for 100 milliseconds every 3 seconds. This data is made available by EAPI libraries. AdvancedĮnhanced 3 wire RPM measurement refers to an algorithm necessary for the consistent reading of the current fan speed to respond to the tachometer signal.
Here a detailed description of the fan settings and its default values. Heads up! Please, always keep updated the BIOS/UEFI Firmware of your UDOO BOLT to have the latest features and bugfix available. The full management of the fan settings described below is possible starting from BIOS/UEFI Firmware version 1.07.
The fan that cools the Ryzen™ processor of the UDOO BOLT is a 5V powered fan with PWM signal speed management and is managed entirely by the board's Embedded Controller. On this page you will find some information and tips about the fan above the heatsink of the processor.
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