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

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ALM-0742FFFF/0742FF26 Transition to Critical from Less Severe (Mos Major Error)

ALM-0742FFFF/0742FF26 Transition to Critical from Less Severe (Mos Major Error)


Alarm message:

Transition to Critical from less severe 

This alarm is generated when the PG signal of the soft-start circuit encounters an error for the fifth time, or when two or more MOSFET temperature detection points simultaneously detect overtemperature for the fifth time.

This alarm is generated when an error of the power soft-start circuit on the mainboard causes a 12 V undervoltage fault.

This alarm is generated by the following sensor:

  • Mos Major Error
  • 12V VDDQ Low


Alarm ID

Alarm Severity

Auto Clear

iBMC: 0742FFFF

MM: 0742FF26







Indicates the time when an alarm is generated.


Name of the sensor that generated the alarm.


Provides detailed information about the alarm.


Indicates the severity of the alarm.

Event Code

Indicates the event code of an alarm.

Impact on the System

The board will be powered off.

Possible Causes

The soft-start circuit of the board is faulty.


  1. After recording fault information, power off and remove the board.
  2. Contact Huawei technical support.
Updated: 2019-11-19

Document ID: EDOC1100035007

Views: 27843

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