Hot-Swap Controller Backplane Events 
System Event Log Troubleshooting Guide for EPSD
 
Platforms Based on Intel
®
 Xeon
®
 Processor E5 4600/2600/2400/1600/1400 Product Families 
112  Intel order number G90620-002  Revision 1.1 
Table 88: HSC Backplane Temperature Sensor – Event Trigger Offset – Next Steps 
Lower non-critical 
going low 
The temperature has dropped below its lower 
non-critical threshold. 
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). 
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. 
12.2  Hard Disk Drive Monitoring Sensor 
The new backplane design for EPSD Platforms Based on Intel
®
 Xeon
®
 Processor E5 4600/2600/2400/1600 Product Families moves 
IPMI ownership of the HDD sensors to the BMC. Note that systems may have multiple storage backplanes. Hard Disk Drive status 
monitoring is supported through disk status sensors owned by the BMC. 
Table 89: Hard Disk Drive Monitoring Sensor Typical Characteristics 
60h-68h = Hard Disk Drive 15-23 Status 
F0h-FEh = Hard Disk Drive 0-14 Status 
Event Direction and 
Event Type 
[7] Event direction 
0b = Assertion Event 
1b = Deassertion Event 
[6:0] Event Type = 6Fh (Sensor Specific) 
[7:6] – 00b = Unspecified Event Data 2 
[5:4] – 00b = Unspecified Event Data 3 
[3:0] – Event Trigger Offset as described in Table 90