My server seems to restart at random times and i'm having trouble trying to pin point of what it may be. I am running 7.2 beta 2 but I want to say this has been happening for awhile on stable releases. I've attached diagnostic logs if anyone would like to help look and see if they notice anything I can look at and give recommendations. I have a local syslog running but i'm not seeing any errors any time before it restarts only things like checking for docker updates at 3am then the reboot happens at random times and the logs show the start up info.

I'm running an amd 5950x w/ a gigabyte b550 pro ac board and 64 gigabyte ram. PCI slots include a 3080, a pcie x1 NVME adapter, LSI SAS2308-8i, Nvidia P2000 and a 750w power supply.

Things I need to try when I get home is a mem test. I'm one bios version behind that came out earlier this year so ill have to update to that and reset bios defaults.

If anyone can help with the diagnostic logs I would really appreciate it.

unraid-diagnostics-20250903-1109.zip

10 hours ago, akira1984 said:

If anyone can help with the diagnostic logs I would really appreciate it.

hard reboots are (sadly) most common hardware issues and also (sadly) hard to debug.

as you are using a AMD setup, they dont really like powersaving features, so may try

1/ disable powertop

2/ disable any other power savings (also in BIOS !!!)

also, you are using ACS override features, in terms you need them to force iommu group splitting ... but thats the "hard" way and can cause issues (warning is there with a reason), the question is, do you need it to split ? if so, may that also can cause hardware issues and crashes.

in terms you enabled it just like that ... may tr ydisable this too, BUT be aware, device assignements and so on may change then, so you may have to correct your passthroug hdevices etc ... so my 1st step would be, power savings disable, AMD is known to be very sensitive ...

Also see here, 5950X may need a little more voltage with Linux:

https://forums.unraid.net/topic/46802-faq-for-unraid-v6/page/2/#findComment-819173

On 9/4/2025 at 12:00 AM, alturismo said:

hard reboots are (sadly) most common hardware issues and also (sadly) hard to debug.

as you are using a AMD setup, they dont really like powersaving features, so may try

1/ disable powertop

2/ disable any other power savings (also in BIOS !!!)

also, you are using ACS override features, in terms you need them to force iommu group splitting ... but thats the "hard" way and can cause issues (warning is there with a reason), the question is, do you need it to split ? if so, may that also can cause hardware issues and crashes.

in terms you enabled it just like that ... may tr ydisable this too, BUT be aware, device assignements and so on may change then, so you may have to correct your passthroug hdevices etc ... so my 1st step would be, power savings disable, AMD is known to be very sensitive ...

I updated my bios to the newest one as I was behind one version. I'm not really sure why powertop is still there. I want to say I used to use the tips and tricks plugin awhile back for the cpu govenors but stopped using that awhile back and I guess when it uninstalled may have left it installed. Not sure if i'm using any power saving features in the bios but ill have to look closer. I disabled the ACS override features and unraid wouldnt boot so i had to get the thumb drive and clear the vfio bind config as it was looking for things that couldnt be bound anymore and then for some reason my windows vm wouldn't boot up if i had it set to virtio when passing through the drive but would work using sata. I ended up reinstalling my windows vm and it works fine with virtio enabled now. When ACS was enabled it was able to separate the pci nvme easier where it could be bound to vfio on boot. Now i'm just using unassigned devices to passthru the nvme. After a day or so after I experienced another random reboot so ill have to look into powersaving in the bios and what JorgeB had mentioned.

On 9/4/2025 at 1:49 AM, JorgeB said:

Also see here, 5950X may need a little more voltage with Linux:

https://forums.unraid.net/topic/46802-faq-for-unraid-v6/page/2/#findComment-819173

I'll have to look into this. Possible that it would be my issue. Was testing other things before trying this.

On 9/4/2025 at 1:49 AM, JorgeB said:

Also see here, 5950X may need a little more voltage with Linux:

https://forums.unraid.net/topic/46802-faq-for-unraid-v6/page/2/#findComment-819173

I'll have to give it more time but so far after doing a +4 in curve optimizer in the bios I haven't had a reboot yet. Although I have gone 20+ days before the setting without reboots and when it does happen it happens randomly. It may have added a bit more to my cpu temps but not by much with my nh-d15.