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FusionServer Pro Rack Server iBMC Alarm Handling 31

This document describes iBMC alarms in terms of the meaning, impact on the system, possible causes, and handling suggestions.

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ALM-0x27000017 PCH PRIM 1.05 V Undervoltage (PCH, Major Alarm)

ALM-0x27000017 PCH PRIM 1.05 V Undervoltage (PCH, Major Alarm)


Alarm message:

The PCH PRIM 1V05 voltage (arg1 V) is lower than the undervoltage threshold (arg2 V).

This alarm is generated when the PCH PRIM 1 V05 voltage is lower than the undervoltage threshold.

Alarm object: PCH


Alarm ID Alarm Severity Auto Clear





Name Meaning


Current reading of the sensor.


Alarm threshold.

Impact on the System

The system stops responding or cannot be started.

Possible Causes

The mainboard is faulty.


  1. Replace the mainboard. Then, check whether the alarm is cleared.

    • If yes, no further action is required.

    • If no, go to 2.

  2. Contact Huawei technical support.
Updated: 2019-11-19

Document ID: EDOC1000054724

Views: 394170

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