Reference Guide
S3 50 45 50 45 N/A
S4 40 35 40 35 N/A
S5 50 45 50 45 N/A
S6 67 62 67 62 N/A
S7 68 63 68 63 N/A
S8 66 61 66 61 N/A
S9 66 61 66 61 N/A
-- Switching Core --
-- Temperature Limits (deg C) --
---------------------------------------------------------------------------
Minor Minor Off Major Major Off Shutdown
S0 93 86 100 95 105
S1 93 86 100 95 105
S2 93 86 100 95 105
S3 93 86 100 95 105
S4 93 86 100 95 105
S5 93 86 100 95 105
-- Port Modules --
-- Temperature Limits (deg C) --
---------------------------------------------------------------------------
Minor Minor Off Major Major Off Shutdown
S0 93 86 100 95 105
S1 93 86 100 95 105
S2 93 86 100 95 105
S3 93 86 100 95 105
S4 93 86 100 95 105
S5 93 86 100 95 105
S6 93 86 100 95 105
S7 93 86 100 95 105
S8 93 86 100 95 105
S9 93 86 100 95 105
S10 93 86 100 95 105
NOTE:
The system software automatically shuts down the system if a critical component reaches a critical shutdown
threshold. The software attempts to correct the situation by running the system and power-supply fans at their maximum
prescribed levels (70% PWM for system fans, and 99% for PSU fans). If sensor’s temperature does not decrease to a non-
critical level within one minute (60 seconds), the system automatically shuts down.
Troubleshoot an Over-Temperature Condition
To troubleshoot an over-temperature condition, determine the sensor(s) that triggered the over-temperature alarm by
displaying the current temperature levels and the historical logs of the temperature threshold-crossing events.
To display current temperature levels, use the show environment thermal-sensors command. If a temperature
threshold has been crossed, the command output appends a flag to the temperature value of the sensor: m for minor over-
temperature, M for major over-temperature, or S for shutdown. Minor threshold crossings do not cause alarms, but are used to
trigger increases in the speed of the system fans as needed to keep the component temperature within the desired range.
Dell#show environment thermal-sensors
-- Thermal Sensor Readings (deg C) --
Module S0 S1 S2 S3 S4 S5 S6 S7 S8 S9 S10
----------------------------------------------------------------------------------
System Core 33 33 34 33 28 39 25 36 39 39 -
Switching Core 100[M] 46 47 45 44 45 - - - - -
Port Modules 49 101[M] 60 49 62 52 78 55 53 50 46
Threshold crossed [m]: minor [M]: major, [S]: shutdown
When a temperature threshold is crossed (either below or above the pre-configured value), the system logs an event that
contains information about the time when the event occurred, the type of event (minor, major, or shutdown), the current
temperature of the sensor, and the identity of the sensor. The system also logs events when the fan speeds change (increase or
decrease) as a result of changes in sensor temperature. To display the event log, use the show logging command.
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Debugging and Diagnostics