Kontron ePCI-101, User Manual, Page: 44 / 109

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ePCI-101 User’s Guide
2.8 Debugging Features
2.8.1 Serial Post Codes
The 8-bit content of I/O address 80h is serialized into a proprietary protocol and output on the J3
connector. In manufacturing, Kontron uses a display board to deserialize and display the postcode
value on 7-segment LEDs modules. This approach enables you to see post codes before PCI
initialization and avoid using a PCI postcode display board.
The display board is not offered with this product. It is used for manufacturing.
Postcodes can be a useful tool when debugging application software. If the display board interests
you, please ask your Kontron representative for it.
2.9 System Management Features
2.9.1 Thermal Management
The SHB includes a user-defined temperature sensor , which provides thermal monitoring of the
processor, using the Winbond W83627HF. In addition, the Pentium M includes an active thermal
control circuit (TCC) that can automatically throttle the CPU clock when exceeding the maximum
operating temperature.
A user application or software can read the CPU temperature.
BIOS Settings:
Power
Menu, Intelligent System Monitoring, Hardware monitor Temperature.
CPU overheating can happen if system fans fail. If overheated, the SHB powers down itself and
remains OFF until the user pushes the power button.
Note:
If the CPU overheats, the CPU asserts the THERMTRIP# signal, which stops power.
To restart the board, cycle BDSEL# or remove and insert the board.
2.9.2 Power Supply Monitoring
All onboard supplies are monitored through the super I/O.
BIOS Settings:
Power Menu, Intelligent System Monitoring, Hardware Monitor Voltage Inputs.