System Event Log Troubleshooting Guide for Intel® S5500/S3420

Cooling Subsystem

Table 38: Thermal Margin Sensors – Next Steps

Sensor

Number

22h

23h

24h

Sensor Name

IOH Therm Margin

Mem P1 Therm Margin

Mem P2 Therm Margin

Next Steps

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).

Not a logged SEL event. Sensor is used for thermal management of the processor.

5.2.3

62h

63h

P1 Therm Margin

P2 Therm Margin

Processor Thermal Control % Sensors

Processor Thermal Control % sensors report the percentage of the time that the processor is throttling its performance due to thermal issues. If this is not addressed the processor could overheat and shut down the system to protect itself from damage.

Table 39: Processor Thermal Control % Sensors Typical Characteristics

Byte Field

11 Sensor Type

12 Sensor Number

13 Event Direction and

Event Type

14 Event Data 1

15 Event Data 2

Description

01h = Temperature

See Table 41

[7] Event direction

0b = Assertion Event

1b = Deassertion Event

[6:0] Event Type = 01h (Threshold)

[7:6] – 01b = Trigger reading in Event Data 2

[5:4] – 01b = Trigger threshold in Event Data 3

[3:0] – Event Triggers as described in Table 40

Reading that triggered event.

36 Intel order number G74211-002 Revision 1.1