Miscellaneous Events 
System Event Log Troubleshooting Guide for EPSD
 
Platforms Based on Intel
®
 Xeon
®
 Processor E5 4600/2600/2400/1600/1400 Product Families 
106  Intel order number G90620-002  Revision 1.1 
11.6  BMC FW Health Sensor 
The BMC tracks the health of each of its IPMI sensors and reports failures by providing a “BMC FW Health” sensor of the IPMI 2.0 
sensor type Management Subsystem Health with support for the Sensor Failure offset. Only assertions will be logged into the SEL 
for the Sensor Failure offset. The BMC Firmware Health sensor asserts for any sensor when 10 consecutive sensor errors are read. 
These are not standard sensor events (that is, threshold crossings or discrete assertions). These are BMC Hardware Access Layer 
(HAL) errors such as I
2
C NAKs or internal errors while attempting to read a register. If a successful sensor read is completed, the 
counter resets to zero. 
Table 83: BMC FW Health Sensor Typical Characteristics 
28h = Management Subsystem Health 
Event Direction and 
Event Type 
[7] Event direction 
0b = Assertion Event 
1b = Deassertion Event 
[6:0] Event Type = 6Fh (Sensor Specific) 
[7:6] – 11b = Sensor-specific event extension code in Event Data 2 
[5:4] – 00b = Unspecified Event Data 3 
[3:0] – Event Trigger Offset = 4h = Sensor failure 
Sensor number of the failed sensor 
11.6.1  BMC FW Health Sensor – Next Steps 
1.  Check the SEL for any other events around the time of the failure. 
2.  Take note of all IPMI activity that was occurring around the time of the failure. Capture a System BMC Debug Log as soon as you 
can after experiencing this failure. This log can be captured from the Integrated BMC Web Console or by using the Intel
®
 Syscfg 
utility (syscfg /sbmcdl private filename.zip). Send the log file to your system manufacturer or Intel representative for failure 
analysis. 
3.  If the failure continues around a specific sensor, replace the board with that sensor.