KBC/EC 過客的學習筆記

Fan Control – System Fan Control Mechanism EC Firmware's control of system temperature can be divided into the following three main parts: Temperature sensing and reading:Read real-time temperature information from the CPU chip. Fan control logic:The system determines the most accurate or highest temperature value based                     on different system architectures, and then adjusts the fan speed to achieve the purpose of                     heat dissipation. Fan operation status monitoring:Regularly check whether the actual fan speed falls within the                     expected range to ensure normal hardware operation and activate the protection mechanism                     in case of abnormality. This article will provide a detailed expla...

Introduction and Operating Principle of Digital Thermal Sensor (DTS) The Digital Thermal Sensor (DTS) was first used in Intel's dual-core processor architecture. Because each core can operate independently or pause, the overall CPU chip temperature varies depending on the operating status of each core. To more accurately monitor and manage temperature, Intel designed DTS to provide real-time temperature information for each core to the system BIOS. When the CPU temperature reaches a certain threshold, DTS will...SMI（System Management Interrupt）An interrupt is triggered, notifying the system BIOS. The SMI interrupt service routine in the BIOS is then called, which reads the real-time temperature of each core and sets the next upper and lower temperature thresholds. Introduction and Operating Principle of Digital Thermal Sensor (DTS) Digital Thermal Sensor（DTS）Originally used in Intel's dual-core processor architecture. Because each core can execute or pause independently, the ov...