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E9000 Server V100R001 HMM Alarm Handling 19

This document describes E9000 server alarms in terms of the meaning, impact on the system, possible causes, and solutions.
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Slot: Overvoltage (Major, CPUN DDR VPP/CPUN DDR VDDQM/1.2V VDDQM)

Slot: Overvoltage (Major, CPUN DDR VPP/CPUN DDR VDDQM/1.2V VDDQM)

Description

Alarm message:

Voltage above upper major threshold

or

CPU arg1 DIMM VDDQ1 voltage (arg2V) exceeds the overvoltage threshold (arg3V). 

or

CPU arg1 DIMM VDDQ2 voltage (arg2V) exceeds the overvoltage threshold (arg3V). 

This alarm is generated when the voltage of the idetection point higher than the major alarm upper threshold.

This alarm is generated by the following sensors:

  • CPUN DDR VPP
  • CPUN DDR VDDQM
  • 1.2V VDDQM

Attribute

Alarm ID

Alarm Severity

Auto Clear

0x0149FF02

Major

Yes

Parameters

Name

Meaning

N, arg1

Slot number of the CPU.

M

Slot number of the VDDQ.

arg2

Current reading of the sensor.

arg3

Alarm threshold.

Impact on the System

When devices work with a upper voltage, the component performance deteriorates, the device service life shortens, which causes system breakdown.

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.

    For details about DIMM and CPU layout, see the server user guide.

    • If yes, go to 2.
    • If no, go to 3.

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

    For details about how to replace the DIMM, see the server user guide.

    • 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. On the HMM WebUI, choose System Management > Information Collection, and collect logs.
  6. Contact Huawei technical support.
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Updated: 2018-08-16

Document ID: EDOC1000015902

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