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Huawei Rack Server iBMC Alarm Handling 27

This document describes iBMC alarms in terms of the meaning, impact on the system, possible causes, and handling suggestions.
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ALM-0x0000005D CPU VMCP Undervoltage (CPU, Major Alarm)

ALM-0x0000005D CPU VMCP Undervoltage (CPU, Major Alarm)

Description

Alarm message:

CPU arg1 VMCP voltage (arg2 V) is lower than the undervoltage threshold (arg3 V) (SN: arg4, PN: arg5).
NOTE:

From iBMC V316, the CPU and disk alarms will also include the SN and part umber and the mainboard and memory alarms will also include the part number.

This alarm is generated when the VMCP voltage of the CPU is lower than the undervoltage threshold.

Alarm object: CPU

Attribute

Alarm ID Alarm Severity Auto Clear

0x0000005D

Major

Yes

Parameters

Name Meaning
arg1

Socket NO. of the CPU.

arg2

Current reading of the sensor.

arg3

Alarm threshold.

arg4

CPU serial number.

arg5

Part number.

Impact on the System

The system stops responding.

Possible Causes

The mainboard is faulty.

Procedure

  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.
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Updated: 2019-02-28

Document ID: EDOC1000054724

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