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Dell Configuration Guide for the S4048–ON System 9.14.2.4

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Recognize an Overtemperature Condition

An overtemperature condition occurs, for one of two reasons: the card genuinely is too hot or a sensor has malfunctioned.

Inspect cards adjacent to the one reporting the condition to discover the cause.
  • If directly adjacent cards are not normal temperature, suspect a genuine overheating condition.
  • If directly adjacent cards are normal temperature, suspect a faulty sensor.
When the system detects a genuine over-temperature condition, it powers off the card. To recognize this condition, look for the following system messages:
CHMGR-2-MAJOR_TEMP: Major alarm: chassis temperature high (temperature reaches or exceeds threshold of
[value]C)
CHMGR-2-TEMP_SHUTDOWN_WARN: WARNING! temperature is [value]C; approaching shutdown threshold of [value]C

To view the programmed alarm thresholds levels, including the shutdown value, use the show alarms threshold command.

Example of the show alarms threshold Command

DellEMC#show alarms threshold

--  Temperature Limits (deg C)  --
----------------------------------------------------------------
          Minor Off     Minor   Major Off    Major   Shutdown
Unit2        55         60      75           80      85
----------------------------------------------------------------
          Minor Off     Minor   Major Off    Major   Shutdown
Unit3        55         60      75           80      85

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