Do I have a power supply problem?



  • I usually don't muck around much but I found these in the event log (IPMI webpage) on a Supermicro server.

    What do you think? Is this something to worry about?

    67	2017/11/15 19:37:46	-12V 	Voltage	Lower Non-Critical - Going Low - Asserted
    68	2017/11/15 19:37:46	-12V 	Voltage	Lower Critical - Going Low - Asserted
    69	2017/11/15 19:37:46	-12V 	Voltage	Lower Non-Recoverable - Going Low - Asserted
    70	2017/12/06 17:54:32	-12V 	Voltage	Lower Non-Recoverable - Going Low - Deasserted
    71	2017/12/06 17:54:32	-12V 	Voltage	Lower Critical - Going Low - Deasserted
    72	2017/12/06 17:54:32	-12V 	Voltage	Lower Non-Critical - Going Low - Deasserted
    73	2017/12/06 17:54:35	-12V 	Voltage	Lower Non-Critical - Going Low - Asserted
    74	2017/12/06 17:54:35	-12V 	Voltage	Lower Critical - Going Low - Asserted
    75	2017/12/06 17:54:35	-12V 	Voltage	Lower Non-Recoverable - Going Low - Asserted


  • According to SuperMicro
    http://supermicro.com/support/faqs/faq.cfm?faq=18313
    Update your BIOS and check again.
    It could be normal, BMC reporting incorrect values which trigger an alarm.
    Does the system crash ever?



  • @momurda No, it never crashes. And it has dual power supplies.



  • Seeing the dates, is there a pattern? Like does it keep on going up to this year, 2018?



  • @dbeato said in Do I have a power supply problem?:

    Seeing the dates, is there a pattern? Like does it keep on going up to this year, 2018?

    No, these were the only dates.
    But I will update the bios/ipmi just in case it is a software problem as @momurda suggested.

    Come to think of it, I'm not even sure the -12V in the power supply is even used anymore.



  • @pete-s said in Do I have a power supply problem?:

    @dbeato said in Do I have a power supply problem?:

    Seeing the dates, is there a pattern? Like does it keep on going up to this year, 2018?

    No, these were the only dates.
    But I will update the bios/ipmi just in case it is a software problem as @momurda suggested.

    Come to think of it, I'm not even sure the -12V in the power supply is even used anymore.

    It is more like CMOS battery or other component.


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