No relevant resource is found in the selected language.

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies. Read our privacy policy>Search


To have a better experience, please upgrade your IE browser.


FusionServer Pro Rack Server iBMC Alarm Handling 31

This document describes iBMC alarms in terms of the meaning, impact on the system, possible causes, and handling suggestions.

Rate and give feedback:
Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
ALM-0x10000031 Large Voltage Difference on Mainboard MOSFET (Mainboard, Critical Alarm)

ALM-0x10000031 Large Voltage Difference on Mainboard MOSFET (Mainboard, Critical Alarm)


Alarm message:

The MOS FET voltage drop (arg1 V) of the soft-start circuit on the mainboard exceeds the threshold (arg2 V) (BN: arg3).

From iBMC V316, the CPU and disk alarms will also include the SN and BOM code and the mainboard and memory alarms will also include the BOM code.

The voltage difference of the MOSFET on the mainboard exceeds the critical threshold.

Alarm object: mainboard


Alarm ID Alarm Severity Auto Clear





Name Meaning


Current reading of the sensor.


Alarm threshold.


BOM code.

Impact on the System

The server cannot be started or may run improperly.

Possible Causes

The mainboard is faulty.


  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.
Updated: 2019-11-19

Document ID: EDOC1000054724

Views: 395208

Downloads: 3202

Average rating:
This Document Applies to these Products

Related Version

Related Documents

Previous Next