I’m sorry about hearing you have this intermittent issue since those are really difficult to troubleshoot. As you said BMC beep code 1-5-4-2 is related to the power feeding to the board but not necessarily an indication of failure of the power supply unit. Possible issue related to power could be:
- The power requirements exceed the nominal power output of the power supply (in your case 500 watt)
- The power requirements exceed the nominal power output of the UPS (less likely since its higher than the power supply capacity)
- On intel branded PSU the waveform emitted by the UPS should be pure sinewave otherwise it will cause issues under load
For troubleshooting purposes let me ask you how possible would be for you to try a different PS, connecting the power cord directly to the wall power outlet skipping the UPS and running high stress benchmark utilities so the whole server goes near to a 100% on processors, GPU, fans, SSDs, etc.
Keep me posted.
Apology for not being able to connect with you sooner,
I Appreciate your help.
I am happy to tell you that my problem has been resolved
Apparently there was a thick layer of dust was settled in my Power supply unit, which was somehow causing trouble
I did not realized before because i used to clean motherboard for clean dust but never actually opened psu. until recently which actually solved my issue.
May be you can add this solution to your troubleshoot option.
Thanks for everything
Glad to hear about your issue got resolved. We will definitely take the "dust layer" step within the our regular troubleshooting process LOL.
Feel free to contact us back for anything that could arise.