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FusionServer Pro Rack Server iBMC Alarm Handling 30

This document describes iBMC alarms in terms of the meaning, impact on the system, possible causes, and handling suggestions.
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ALM-0x0142FFFF Below Lower Major Threshold (SYS 3.3V)

ALM-0x0142FFFF Below Lower Major Threshold (SYS 3.3V)


Alarm message:

Below lower major threshold

This alarm is generated when the voltage of the SYS 3.3V sensor on the mainboard is lower than the major alarm lower threshold.

Sensor triggering the alarm: SYS 3.3V


Alarm ID Alarm Severity Auto Clear




Impact on the System

The system cannot be properly powered on.

Possible Causes

The mainboard is faulty.


  1. Replace the mainboard. Check whether the alarm is cleared.

    • If yes, no further action is required.

    • If no, go to 2.

  2. Contact Huawei technical support.
Updated: 2019-08-05

Document ID: EDOC1000054724

Views: 335124

Downloads: 3066

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