I have been fighting an issue for a few weeks and could not figure out what's going on. I would just simply lose connectivity to unraid and start getting notifications that services are unreachable. I have a monitor plugged in the server and noticed that it completely freeze. I cannot enter in login in formation. I have no choice but to force reboot the system. A while back I ran a memtest for a few hours, nothing came up. Any direction from the diags would amazing.

nas-diagnostics-20260826-0653.zip

Enable the syslog server and post that after the next event.

On 8/26/2026 at 9:36 AM, JorgeB said:

Enable the syslog server and post that after the next event.

Here we go. I had a few plex streams going and Unmanic was processing a few files when the system froze up.

NAS.zip

Unfortunately, there's nothing relevant logged, this can also be a hardware issue, logging stops abruptly after a routine SMART read, and the next boot reports an unclean shutdown. There is no kernel panic, oops, MCE, OOM event, storage error, filesystem error, i915 fault, or network-driver failure before the freeze.

One significant issue is that your ASRock B660M Steel Legend is running BIOS 7.03 with an Intel i5-13500. According to ASRock, support for 13th-generation processors was only added in BIOS 8.02, so the current BIOS predates official support for that CPU.

Update to the latest stable BIOS, load the BIOS defaults afterward, and initially avoid XMP, overclocking, undervolting, or custom power settings. Then retest with the same Plex and Unmanic workload, if it still freezes:

- Run Memtest for at least four complete passes.

- Test Plex and Unmanic separately, then together, noting whether hardware acceleration is enabled.

- Try booting Unraid in Safe Mode, since several installed plugins are marked incompatible, deprecated, or unknown.

- Post new diagnostics generated after the BIOS update.