IHS Processor Thermal Management via Ambient Temperature Sensing
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Solution Overview
Problem
Information handling systems often cause user discomfort due to skin temperature issues, especially in warm environments, as they can generate high temperatures that are perceived as uncomfortable, affecting thermal sensation and comfort scores.
Innovation Solution
The system determines the ambient temperature outside the chassis by measuring the temperature within it, calculates a threshold temperature for processors, and configures them to operate within safe and comfortable skin temperature ranges, also adjusting fan speeds to manage heat and maintain user comfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the processor operates at high power to improve processing capabilities, then productivity is improved, but the skin temperature increases causing user discomfort
Solution Approach 1:
The system dynamically adjusts processor power configuration based on real-time ambient temperature sensing. The embedded controller continuously monitors temperature and adjusts processor power limits accordingly, allowing high power when cool and reducing power when warm, thus resolving the contradiction between productivity and user comfort
Solution Approach 2:
The system changes the operating parameters of the processor based on thermal conditions. By sensing ambient temperature and adjusting processor power configuration parameters, the system optimizes the balance between processing capabilities and skin temperature, preventing user discomfort while maintaining productivity when conditions permit
2Productivity
If the processor operates at high power, then productivity is improved, but the temperature increases leading to thermal management issues
Solution Approach 1:
The system implements a feedback loop where the embedded controller continuously monitors processor temperature and ambient conditions, then adjusts processor power configuration in response. This closed-loop control ensures processor operates at high power when thermal conditions allow, while automatically reducing power when temperature thresholds are approached, resolving the contradiction between productivity and temperature management
3Temperature
If fan speed is increased to cool the system, then temperature is reduced, but energy consumption increases
Solution Approach 1:
The system dynamically controls fan speed based on real-time temperature sensing and processor configuration. By adjusting fan speed only when and where thermal conditions require cooling, the system minimizes fan energy consumption while maintaining appropriate temperatures, resolving the contradiction between temperature control and energy usage
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach allows the information handling system to operate efficiently while maintaining a comfortable skin temperature for the user, improving thermal comfort and performance by allowing higher processing capabilities within safe temperature limits.
Implementation Method 1
determine a temperature value within a chassis of an information handling system
Implementation Method 2
maintaining a comfortable skin temperature for the user, improving thermal comfort
Data Source
AI summary
In one or more embodiments, one or more systems, one or more methods, and/or one or more processes may determine a temperature value within a chassis of an information handling system (IHS); may determine an ambient temperature value outside the chassis based at least on the temperature value within the chassis; may provide the ambient temperature value outside the chassis to a process executing on the IHS; may determine a threshold temperature value associated with at least one processor of the IHS based at least on the ambient temperature value outside the chassis and based at least on a target skin temperature value of the IHS; and may configure the at least one processor based at least on the threshold temperature value associated with the at least one processor.