December 13, 20214 yr Hello! I hope anybody might be able to help me with this... Since today my server just randomly powers off and then turns on again. I haven't changed anything or done anything to my server for the past days so I have literally no idea where to start looking. I have a syslog server connected but in those logs I see no error or anything either.. After the first time it happened it just came back online and showed an message of an unclean shutdown, so I started the array which in turn triggered a parity check and let it run. It has been running for a few hours after that and then all of a sudden I hear the *click* sound again and it proceeds to start again. No issues as far as I can see... The onboard IPMI doesn't show anything strange either, no high temperatures or anything. Does anyone maybe have an idea where to look or what might be wrong/causing this? Edited December 18, 20214 yr by jeffrey.el
December 14, 20214 yr Author 6 hours ago, trurl said: Do you have an UPS? Eh yes I do, but it's not connected..
December 14, 20214 yr Author Alright.. I just did a memtest and during that test it also rebooted... Does anybody maybe know of a way to test a power supply?
December 14, 20214 yr 7 hours ago, jeffrey.el said: Does anybody maybe know of a way to test a power supply? Without an oscilloscope, test loads, and years of knowledge and experience, the only way I know is to deploy the parts cannon. Replace it including ALL power cables and see if the symptoms change.
December 14, 20214 yr Author 4 hours ago, JonathanM said: Without an oscilloscope, test loads, and years of knowledge and experience, the only way I know is to deploy the parts cannon. Replace it including ALL power cables and see if the symptoms change. I think i'll have to do that then... Because I don't see an crash and it also happened during the memtest.. And also the system powers on directly afterwards which is how I set it up in the BIOS after a power loss event..
December 17, 20214 yr On 12/14/2021 at 6:45 AM, jeffrey.el said: Alright.. I just did a memtest and during that test it also rebooted... Does anybody maybe know of a way to test a power supply? I've caught a malfunctioning power supply with one of these power supply testers. You can purchase them online. I have one like this one form newegg... https://www.newegg.ca/p/1W9-00CV-00008?Description=power supply tester&cm_re=power_supply tester-_-9SIADDZ7Z51352-_-Product Amazon also has them. They are inexpensive. https://www.amazon.ca/Computer-Power-Supply-Tester-Display/dp/B07WW13H83/ref=sr_1_1_sspa?keywords=power+supply+tester&qid=1639702691&sr=8-1-spons&psc=1&smid=A25PV2D1WZYZ8F&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUExRU4yRTFVTVIyNDRFJmVuY3J5cHRlZElkPUEwNzk0Mzc5MUc0REhFVTlQTUpHOSZlbmNyeXB0ZWRBZElkPUEwMzgyMzQ1MzZUSlVOQjdBMTNLSSZ3aWRnZXROYW1lPXNwX2F0ZiZhY3Rpb249Y2xpY2tSZWRpcmVjdCZkb05vdExvZ0NsaWNrPXRydWU=
December 18, 20214 yr Author On 12/17/2021 at 1:59 AM, Vetteman said: I've caught a malfunctioning power supply with one of these power supply testers. You can purchase them online. I have one like this one form newegg... https://www.newegg.ca/p/1W9-00CV-00008?Description=power supply tester&cm_re=power_supply tester-_-9SIADDZ7Z51352-_-Product Amazon also has them. They are inexpensive. https://www.amazon.ca/Computer-Power-Supply-Tester-Display/dp/B07WW13H83/ref=sr_1_1_sspa?keywords=power+supply+tester&qid=1639702691&sr=8-1-spons&psc=1&smid=A25PV2D1WZYZ8F&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUExRU4yRTFVTVIyNDRFJmVuY3J5cHRlZElkPUEwNzk0Mzc5MUc0REhFVTlQTUpHOSZlbmNyeXB0ZWRBZElkPUEwMzgyMzQ1MzZUSlVOQjdBMTNLSSZ3aWRnZXROYW1lPXNwX2F0ZiZhY3Rpb249Y2xpY2tSZWRpcmVjdCZkb05vdExvZ0NsaWNrPXRydWU= Hmm might buy those for in the future, thanks for the tip!
December 18, 20214 yr Author Solution Just for the people reading this topic, it was indeed the power supply, I have replaced it and now it seems to be working again. Thanks for all the input and help!
December 18, 20214 yr 38 minutes ago, jeffrey.el said: Hmm might buy those for in the future, thanks for the tip! Keep in mind that those testers only catch the worst failures, they can show good when the PSU is still unable to stay stable under full load. For a system that boots and runs, those testers will likely show good, because they are only able to test the resting output. When diagnosing a no POST system, those testers are indeed useful. Glad you fixed your issue!
January 8, 20224 yr Author On 12/18/2021 at 5:03 PM, JonathanM said: Keep in mind that those testers only catch the worst failures, they can show good when the PSU is still unable to stay stable under full load. For a system that boots and runs, those testers will likely show good, because they are only able to test the resting output. When diagnosing a no POST system, those testers are indeed useful. Glad you fixed your issue! Ah thanks for the info! I will keep that in mind!
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