Kontron S5500 SEL Troubleshooting - Manual (Page 46)

System Event Log Troubleshooting Guide for Intel ® S5500/S3420 series Server Boards Cooling subsystem
Revision 1.0 Intel order number G74211-001 37
Event Trigger Assertion
Severity
Deassert
Severity
Description
Hex Description
09h
Upper critical
going high
non-fatal Degraded The temperature has gone over its upper critical threshold.
Table 35: Temperature Sensors – Next Steps
Sensor Name
Sensor
number
Next Steps
Baseboard Temp 20h
1. Check for clear and unobstructed airflow into and out of chassis.
2. Ensure SDR is programmed and correct chassis has been selected.
3. Ensure there are no fan failures.
4. Ensure the air used to cool the system is within the thermal specifications for the system (typically below 35°C).
Front Panel Temp 21h
If the front panel temperature reads zero, check:
1. It is connected properly.
2. The FRUSDR has been programmed correctly for your chassis.
If the front panel temperature is too high:

Check the cooling of your server room.
5.2.2 Thermal Margin Sensors
Margin sensors are also linear sensors but typically report a negative value. This is not an actual temperature, but in fact an offset to a critical
temperature. Example sensors are Processor Thermal Margin, Memory Thermal Margin and IOH Thermal margin. Values reported should be
seen as number of degrees below a critical temperature for the particular component.
Table 36: Thermal Margin Sensors Typical Characteristics
Byte Field Description
11 Sensor Type 01h = Temperature
12 Sensor Number See Table 38