System Event Log Troubleshooting Guide for Intel® S5500/S3420

System Event Log Troubleshooting Guide for Intel

®

Power Subsystems

Sensor

Number

1Dh

Sensor Name

BB +1.35 P1 Mem

1Eh BB +1.35 P2 Mem

Next Steps

This 1.35V line is supplied by the main board.

This 1.35V line is used by low voltage memory on processor 1.

1. Ensure all cables are connected correctly.

2. Check the DIMMs are seated properly.

3. Cross test the DIMMs.

4. If the issue remains with the DIMMs on this socket, replace the main board, otherwise the DIMM.

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 the 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

11 Sensor Type

12 Sensor Number

09h = Power Unit

01h

Description

Revision 1.1 Intel order number G74211-002 21