SEL Troubleshooting Guide

Power Subsystems System Event Log Troubleshooting Guide for Intel® S5500/S3420 Series Server Boards
18 Intel order number G74211-002 Revision 1.1
Table 13: Voltage Sensors Event Triggers – Description
Event Trigger
Assertion
Severity
Deassert
Severity
Description
Hex
Description
00h
Lower non-critical
going low
Degraded
OK
The voltage has dropped below its lower non-critical threshold.
02h
Lower critical
going low
non-fatal
Degraded
The voltage has dropped below its lower critical threshold.
07h
Upper non-critical
going high
Degraded
OK
The voltage has gone over its upper non-critical threshold.
09h
Upper critical
going high
non-fatal
Degraded
The voltage has gone over its upper critical threshold.
Table 14: Voltage Sensors – Next Steps
Sensor
Number
Sensor Name
Next Steps
10h
BB +1.1V IOH
This 1.1V line is supplied by the main board.
This 1.1V line is used by the I/O hub (IOH)
1. Ensure all cables are connected correctly.
2. If the issue remains, replace the motherboard.
11h
BB +1.1V P1 Vccp
This 1.1V line is supplied by the main board.
This 1.1V line is used by processor 1.
1. Ensure all cables are connected correctly.
2. Cross test the processor if possible. If the issue remains with the socket, replace the main board, otherwise the processor.
12h
BB +1.1V P2 Vccp
This 1.1V line is supplied by the main board.
This 1.1V line is used by processor 2.
1. Ensure all cables are connected correctly.
2. Cross test the processor if possible. If the issue remains with the socket, replace the main board, otherwise the processor.