SEL Troubleshooting Guide

Power Subsystems System Event Log Troubleshooting Guide for Intel® S5500/S3420 Series Server Boards
22 Intel order number G74211-002 Revision 1.1
Byte
Field
Description
13
Event Direction and
Event Type
[7] Event direction
0b = Assertion Event
1b = Deassertion Event
[6:0] Event Type = 6Fh (Sensor Specific)
14
Event Data 1
[7:6] – 00b = Unspecified Event Data 2
[5:4] – 00b = Unspecified Event Data 3
[3:0] = Sensor Specific offset as described in Table 9
15
Event Data 2
Not used
16
Event Data 3
Not used
Table 16: Power Unit Status Sensor – Sensor Specific Offsets – Next Steps
Sensor Specific Offset
Description
Next Steps
Hex
Description
00h
Power down
System is powered down.
Informational Event
04h
AC Lost
AC removed.
Informational Event
05h
Soft Power Control
Failure
Generally means power good was lost
in the system, causing a shutdown.
This could be caused by the power supply subsystem or system components.
1. Verify all power cables and adapters are connected properly (AC cables as well as the cables
between the PSU and system components).
2. Cross test the PSU if possible.
3. Replace the power subsystem.
06h
Power Unit Failure
Power subsystem experienced a
failure.
Indicates a power supply failed.
1. Remove and reapply AC power.
2. If the power supply still fails, replace it.
4.2.2 Power Unit Redundancy Sensor
This sensor is enabled on systems that support redundant power supplies. When a system has AC applied or if it loses redundancy of the
power supplies a message will get logged into the SEL.