I am looking for general Unraid guidance on repeated Machine Check Events. This is on a new server, and I am trying to determine the best way to capture more detail from Unraid/Linux.

System details

Server: 45Homelab / 45Drives X15

Motherboard: Gigabyte MW34-SP0 rev 1.1

CPU: Intel Core i7-14700

RAM: ECC UDIMM

OS: Unraid 7.3.1

Kernel: 6.18.33-Unraid

CPU microcode: 0x133

Issue

Fix Common Problems alerted with:

Machine Check Events detected on your server

The kernel has logged repeated generic MCE notifications.

Before a RAM swap, I saw 9 MCEs over about 59 hours:

[Wed Jul  1 02:23:46 2026] mce: [Hardware Error]: Machine check events logged
[Wed Jul  1 03:08:54 2026] mce: [Hardware Error]: Machine check events logged
[Thu Jul  2 04:49:11 2026] mce: [Hardware Error]: Machine check events logged
[Thu Jul  2 18:50:03 2026] mce: [Hardware Error]: Machine check events logged
[Thu Jul  2 21:27:54 2026] mce: [Hardware Error]: Machine check events logged
[Fri Jul  3 00:10:19 2026] mce: [Hardware Error]: Machine check events logged
[Fri Jul  3 00:12:09 2026] mce: [Hardware Error]: Machine check events logged
[Fri Jul  3 05:29:56 2026] mce: [Hardware Error]: Machine check events logged
[Fri Jul  3 12:23:03 2026] mce: [Hardware Error]: Machine check events logged

I swapped RAM and rebooted. The MCEs still recurred afterward:

system boot 2026-07-06 03:32

[Tue Jul  7 03:34:32 2026] mce: [Hardware Error]: Machine check events logged
[Tue Jul  7 06:00:25 2026] mce: [Hardware Error]: Machine check events logged

So the RAM swap did not resolve it.

What I have checked so far

mcelog:

- /usr/sbin/mcelog exists

- /dev/mcelog exists

- mcelog --client returned no decoded records

- Direct read from /dev/mcelog returned no queued records

- Briefly starting the mcelog daemon did not recover historical detail

rasdaemon:

- Not installed / not available on this Unraid install

IPMI/BMC:

- No matching entries in the BMC SEL / event log

PCIe AER:

- AER is enabled

- No corrected / uncorrected / fatal PCIe AER errors shown in dmesg

- Only normal boot-time AER enablement lines appear

EDAC:

- EDAC modules are present

- igen6_edac loads

- edac_core loads

- No memory controller is registered

- /sys/devices/system/edac/mc has no mc0

Relevant output

Linux x15 6.18.33-Unraid #1 SMP PREEMPT_DYNAMIC Mon May 25 10:59:51 PDT 2026 x86_64 Intel(R) Core(TM) i7-14700 GenuineIntel GNU/Linux

model name : Intel(R) Core(TM) i7-14700

microcode : 0x133

EDAC state:

Loaded modules:

skx_edac_common

igen6_edac

edac_core

/sys/devices/system/edac/mc:

no mc0 present

Current interpretation

At this point I only have the generic kernel line:

mce: [Hardware Error]: Machine check events logged

I do not have decoded MCE bank/status/source data, so I cannot tell whether this is CPU core/cache, memory-controller/RAM, PCIe/root-complex, firmware/microcode, or something else.

The system has not crashed or rebooted from the MCEs.

Questions

1. What is the recommended way on Unraid 7.3.1 to capture decoded MCE detail on newer Intel platforms?

2. Is mcelog still expected to be useful here, or is rasdaemon preferred?

3. Is there a clean way to install/use rasdaemon on Unraid for this kind of issue?

4. Has anyone seen “mce: [Hardware Error]: Machine check events logged” with no decoded payload and no EDAC/IPMI/AER detail?

5. Are there specific diagnostics or logs I should collect before rebooting or changing BIOS settings?

I have already opened a vendor support ticket, but I am also looking for Unraid/Linux-specific guidance on how to capture better MCE detail if this recurs.

Edited Tuesday at 06:52 PM1 day by capsloth
formatting

Please post the diagnostics to see if there is anything else relevant logged.

As requested.

x15-diagnostics-20260708-0323.zip

Don't see anything else relevant, since that board has IPMI, is there anything recorded in the System Event Logs on the BMC?