System Event Log Troubleshooting Guide for Intel® S5500/S3420

System Event Log Troubleshooting Guide for Intel

®

Cooling Subsystem

Hex

Event Trigger

Description

07h Upper non-critical going high

09h Upper critical going high

Byte Field

16 Event Data 3

Description

Threshold value that triggered event.

Table 40: Processor Thermal Control % Sensors Event Triggers – Description

Assertion

Severity

Degraded

Deassert

Severity

OK

Description

The thermal margin has gone over its upper non-critical threshold. non-fatal Degraded The thermal margin has gone over its upper critical threshold.

Table 41: Processor Thermal Control % Sensors – Next Steps

Sensor

Number

64h

65h

Sensor Name Next Steps

P1 Therm Ctl % These events normally only happen due to failures of the thermal solution:

P2 Therm Ctl %

1. Verify the heatsink is properly attached and has thermal grease.

2. If the system has a heatsink fan, ensure the fan is spinning.

3. Check all system fans are operating properly.

4. Check that the air used to cool the system is within limits (typically 35°C).

5.2.4 Discrete Thermal Sensors

Discrete thermal sensors do not report a temperature at all – instead they report an overheating event of some kind. Examples as VRD Hot

(voltage regulator is overheating) or processor Thermal Trip (the processor got so hot that its over-temperature protection was triggered and the system was shut down to prevent damage).

Revision 1.1 Intel order number G74211-002 37

Cooling Subsystem

Table 42: Discrete Thermal 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

16 Event Data 3

Description

01h = Temperature

See Table 43

[7] Event direction

0b = Assertion Event

1b = Deassertion Event

[6:0] Event Type = See Table 43

[7:6] – 00b = Unspecified Event Data 2

[5:4] – 00b = Unspecified Event Data 3

[3:0] – Event Trigger Offset as described in Table 43

Not used

Not used

Table 43: Discrete Thermal Sensors – Next Steps

Sensor

Number

66h

67h

6ah

Sensor Name

P1 VRD Hot

P2 VRD Hot

IOH Thermal Trip

Event

Type

05h

03h

Event Trigger Offset

Hex Description

Description

01h Limit Exceeded Processor1 voltage regulator overheated

Processor2 voltage regulator overheated

01h State Asserted I/O Hub (IOH) overheated

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).

38 Intel order number G74211-002 Revision 1.1