Cooling Subsystem 
System Event Log Troubleshooting Guide for EPSD
 
Platforms Based on Intel
®
 Xeon
®
 Processor E5 4600/2600/2400/1600/1400 Product Families 
50  Intel order number G90620-002  Revision 1.1 
Threshold value that triggered event 
Table 36: Temperature Sensors Event Triggers – Description 
Lower non-critical 
going low 
The temperature has dropped below its lower non-critical threshold. 
The temperature has dropped below its lower critical threshold. 
Upper non-critical 
going high 
The temperature has gone over its upper non-critical threshold. 
Upper critical 
going high 
The temperature has gone over its upper critical threshold. 
Table 37: Temperature Sensors – Next Steps 
If the front panel temperature reads zero, check: 
1.  It is connected properly. 
2.  The SDR has been programmed correctly for your chassis. 
If the front panel temperature is too high: 
1.  Check the cooling of your server room. 
1.  Check for clear and unobstructed airflow into and out of the chassis. 
2.  Ensure the 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).