beautypg.com

Discrete thermal sensors, Table 41: processor thermal control % sensors, Next steps – Kontron S5500 SEL Troubleshooting User Manual

Page 49

background image

Cooling subsystem

System Event Log Troubleshooting Guide for Intel® S5500/S3420 series Server Boards

40

Intel order number G74211-001

Revision 1.0

Table 41: Processor Thermal Control % Sensors

– Next Steps

Sensor

Number

Sensor Name

Next Steps

64h

P1 Therm Ctl %

These events normally only happens due to failures of the thermal solution:

1. Verify heat sink is properly attached and has thermal grease.

2. If system has a heat sink 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).

65h

P2 Therm Ctl %

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).

Table 42: Discrete Thermal Sensors Typical Characteristics

Byte

Field

Description

11

Sensor Type

01h = Temperature

12

Sensor Number

See Table 43

13

Event Direction and
Event Type

[7] Event direction

0b = Assertion Event

1b = Deassertion Event

[6:0] Event Type = See Table 43

14

Event Data 1

[7:6]

– 00b = Unspecified Event Data 2

[5:4]

– 00b = Unspecified Event Data 3

[3:0]

– Event Trigger Offset as described in Table 43

15

Event Data 2

Not used

16

Event Data 3

Not used