Hi,

After a while, the server becomes unresponsive. The issue can be reproduced by triggering a parity check.

The chassis is a supermicro sc846 with dual PSU.

I’ve already tried:

Swapping CPU

Swapped RAM

Swapped LSI HBA controller

Swapped motherboard

Last thing would maybe be the backplane ?

Already thank you for your help

patricksnas-diagnostics-20250612-1252.zip

Edited June 12, 20251 yr by Hamilcar
Added screenshots

I tried running a parity check in safe mode, issue still appears.

Unraid driver is crashing, this is almost always a hardware issue, typically bad RAM, or since you have a 14900K, it could also be a bad CPU due to the Intel 13/14 gen issues.

I’ve already changed the cpu twice, could it be something else ?

The ram has also been changed and is new is it worth it to run a memtest ?

Edited June 12, 20251 yr by Hamilcar

memtest is only definitive if it finds errors, if you have multiple sticks try using the server with just one, if the same try with a different one, that will basically rule out bad RAM.

I tried the sticks one by one, same result every time: start to see a kernel panic after a few minutes after the boot starting a parity check or not doesn’t matter.

I tried to include what I could see in the logs every time.

Edited June 12, 20251 yr by Hamilcar

Then the CPU would be my main suspect, even if it's the second one, there have been a lot of similar cases where it was confirmed the problem, especially with 13700K, 13900K, 14700K and 14900K

Yeah, also there was a recent microcode update included with the latest asus bios for my motherboard.

I’ll try with another CPU and come back to the thread !

Edited June 12, 20251 yr by Hamilcar

I have been able to run the system for a few hours today with a new 14900k.

No errors.

Thanks for the help !

Hi,

The crashes started to happen again so I'm reopening the thread, I've included logs.patricksnas-diagnostics-20250926-0328.zip

Diags are just after a reboot, don't see any crashes logged.

Managed to get the log after a kernel panicpatricksnas-diagnostics-20250926-1320.zip

Difficult to say based on that panic. Do you get errors again during a parity check?

No the first time the issue happened wasn’t during a parity check.

The system was running smoothly for a week.

Schould I just give up with those 14th gen, maybe I have a bad mobo/cpu combination ?

Edited September 26, 2025Sep 26 by Hamilcar

Post a new log when it happens next, the error may be more clear.

I ended up switching the motherboard and cpu for another model. The system is now stable, thanks for the help.