Kontron KBox C-101 - Manual (Page 33)

8. Thermal Considerations KBox C-101 – User’s Guide (Version 2.00)
For the temperature evaluation a specialised tool from Intel ® was used to set the processor to a defined workload.
Depending on the power consumption one or more cores were set to 75% workload. This includes the graphics core. The
tool also handles the usage of the "Turbo Mode" of certain processor types.
The processor utilisation depends highly on the software used. Software using multicore feature will run
on several cores whereas standard software will only utilise one core. In this case the processor will use
the "Turbo Mode" to increase the clock for the core with the highest workload, as long as the
temperature is within limits.
8.6. Third Party Components
When the KBox C-101 is extended and configured with third party components like PCIe extension cards and hard drives
(HDD or SSD), it has to be taken into account that the air temperature inside the system is higher than the ambient
temperature. An approximately internal temperature rise is given for assistance.
8.7. Processor Thermal Monitoring
The processor used with the KBox C-101 system provides internal thermal monitoring. Every core of the processor
comprises a temperature sensor.
To allow an optimal operation and long-term reliability, the processor must operate in the specified temperature range.
To avoid overheating the processor performs an automatic thermal management, which intends to keep the processor
temperature below the highest value of the temperature range. This behavior is a CPU standard feature.
8.8. Processor Thermal Trip Feature
The Processor Thermal Trip feature protects the processor from catastrophic overheating. The Thermal Trip Tensor
threshold is set well above the normal operating temperature to ensure that there are no false trips. The processor will
stop all executions when the junction temperature exceeds approximately 125°C. This event will be indicated by the red
blinking "Thermal" LED on the front panel. This behavior cannot be altered. Once activated, the event remains latched
until power is cycled.
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