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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-0x01000003 Memory VDDQ1 Undervoltage (Memory, Major Alarm)

ALM-0x01000003 Memory VDDQ1 Undervoltage (Memory, Major Alarm)

Description

Alarm message:

CPU arg1 DIMM VDDQ1 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 voltage of the CPUarg1 DIMM VDDQ1 on the mainboard is lower than the undervoltage major threshold.

Alarm object: memory

Attribute

Alarm ID Alarm Severity Auto Clear

0x01000003

Major

Yes

Parameters

Name Meaning

arg1

Socket NO. of the CPU.

arg2

Current reading of the sensor.

arg3

Alarm threshold.

arg4

Memory serial number.

arg5

Part number.

Impact on the System

System stability is affected.

Possible Causes

  • A DIMM is faulty.
  • The mainboard is faulty.
  • The CPU is faulty.

Procedure

  1. Remove the DIMMs connected to the CPU one by one, and check whether the alarm is cleared.

    Use the Huawei Server Product Memory Configuration Assistant to obtain information about the mapping between CPUs and DIMMs.

    • If yes, go to 2.

    • If no, go to 3.

  2. Replace the faulty DIMM. Then, check whether the alarm is cleared.

    • If yes, no further action is required.

    • If no, go to 4.

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

    • If yes, no further action is required.

    • If no, go to 4.

  4. Replace the CPU. Then, check whether the alarm is cleared.

    • If yes, no further action is required.

    • If no, go to 5.

  5. Contact Huawei technical support.
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Updated: 2019-02-28

Document ID: EDOC1000054724

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