Kontron S5500 SEL Troubleshooting - Manual (Page 32)

System Event Log Troubleshooting Guide for Intel ® S5500/S3420 series Server Boards Power Subsystems
Revision 1.0 Intel order number G74211-001 23
Sensor
Number
Sensor Name
Next Steps
1Eh BB +1.35 P2 Mem
This 1.35V line is supplied by the main board.
This 1.35V line is used by low voltage memory on processor 2.
1. Ensure all cables are connected correctly.
2. Check the DIMMs are seated properly.
3. Cross test DIMMs
4. If the issue remains with the DIMMs on this socket, replace the main board, otherwise the DIMM.
4.2 Power Unit
The power unit monitors the power state of the system and logs the state changes in the SEL.
4.2.1 Power Unit Status Sensor
The power unit status sensor monitors the power state of the system and logs state changes. Expected power on events such as DC ON/OFF
are logged and unexpected events are also logged, such as AC loss and power good loss.
Table 15: Power Unit Status Sensors Typical Characteristics
Byte Field Description
11 Sensor Type 09h = Power Unit
12 Sensor Number 01h
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