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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-0x0000004F CPU VSA Overvoltage (CPU, Major Alarm)

ALM-0x0000004F CPU VSA Overvoltage (CPU, Major Alarm)


Alarm message:

CPU arg1 VSA voltage (arg2 V) exceeds the overvoltage threshold (arg3 V) (SN: arg4, BN: arg5).

From iBMC V316, the CPU and disk alarms will also include the SN and BOM code and the mainboard and memory alarms will also include the BOM code.

This alarm is generated when the VSA voltage of the CPU exceeds the overvoltage threshold.

Alarm object: CPU


Alarm ID Alarm Severity Auto Clear





Name Meaning


Socket No. of the CPU.


Current reading of the sensor.


Alarm threshold.


CPU serial number.


BOM code.

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: 395243

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