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FusionServer Pro E9000 Server iBMC (Earlier than V250) Alarm Handling 02

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ALM-070CFFFF Correctable Machine Check Error (CPUN Status)

ALM-070CFFFF Correctable Machine Check Error (CPUN Status)


Alarm message:

Correctable Machine Check Error

This alarm is generated when the sensor detects that a self-check exception has occurred in a CPU.

This alarm is generated by the following sensor:

  • CPUN Status (N indicates a CPU number.)


Alarm ID

Alarm Severity

Auto Clear








Time when an alarm is generated.


Name of the sensor that generates an alarm.


Details about an alarm.


Severity of an alarm.

Event Code

Event code that corresponds to an alarm.

Impact on the System

The DIMMs corresponding to the CPU cannot be used. As a result, server performance may deteriorate.

Possible Causes

  • The SMI2 link has failed in memory mirroring mode.
  • An internal error has occurred in Jordan Creek.
  • The number of errors that occur during data transmission between Jordan Creek and the memory controller has reached the alarm threshold.


  1. Replace the memory risers corresponding to the CPU. Then check whether the alarm is cleared.

    For details about how to replace a memory riser, see the server user guide.

    When this alarm is generated, the server can still operate properly. Replace the memory riser at an off-peak time.

    • If yes, no further action is required.
    • If no, go to Step 2.

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

Document ID: EDOC1100035007

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