SER5 5560U Random Reboots - Data Fabric Sync Flood Event

savandr11

Hello,
I am experiencing random reboots on my Beelink SER5 and would like to know if anyone has seen a similar issue.
Hardware:
Beelink SER5
AMD Ryzen 5 5560U
BIOS Version: SER5H508
BIOS Date: 12/12/2023
Motherboard: AZW SER V2.0
16 GB RAM
Software:
Ubuntu 26.04.1 LTS
Linux kernel 7.0.0-31-generic
The system is used as a home server and runs 24/7 with a very light workload:
Open WebUI
Ollama
Portainer
TorrServer
Watchtower
Temperatures are always low:
CPU: 34–36°C
SSD: 36–38°C
Memory usage is around 11%.
The system occasionally reboots unexpectedly. After reboot, Linux always reports the same reset reason:
x86/amd: Previous system reset reason [0×08000800]:
an uncorrected error caused a data fabric sync flood event
I installed rasdaemon and checked for hardware errors:
No Memory errors.
No PCIe AER errors.
No MCE errors.
I also checked the system logs before one reboot and noticed that the Ethernet interface lost and regained link several times:
r8169 0000:01:00.0 enp1s0: Link is Down
r8169 0000:01:00.0 enp1s0: Link is Up - 1Gbps/Full
r8169 0000:01:00.0 enp1s0: Link is Down
r8169 0000:01:00.0 enp1s0: Link is Up - 1Gbps/Full
However, I do not know whether this is related to the reboot or just a coincidence.
Additional information:
Ethernet speed: 1000 Mbps Full Duplex
SSD health is good
No overheating
No heavy CPU load
No memory errors reported
No PCIe errors reported
Has anyone experienced similar Data Fabric Sync Flood Event errors on the SER5 with Ryzen 5 5560U?
Is there a newer BIOS version available that improves stability or fixes AMD Data Fabric related issues?
Any advice would be greatly appreciated.
Thank you.

Beelink CS-June

savandr11

Hello there,

Could you please send us a picture of SN code(two lines) at the bottom of machine ?

Then we will send you the new BIOS file to see if the problem can be solved.

Please update the kernel.

Have a nice day~

savandr11

Beelink CS-June

savandr11

Hello there,

Could you please take a picture of the BIOS main screen of your machine for us to see?

Could you please tell me if your machine has ever had its BIOS updated?

Have a nice day~

savandr11

Beelink CS-June
Beelink CS-June

Thank you for your reply.

The BIOS has never been updated. The system is still running the original BIOS version that came with the device:

BIOS Version: SER5H508
BIOS Date: 12/12/2023

I have attached a photo of the BIOS Main screen as requested.

Thank you.

Beelink CS-June

savandr11

Hello there.

Thanks for your reply~

I have sent you the new BIOS file, please check your PM.

Have a nice day~

savandr11

Beelink CS-June Hello.
I followed the tutorial exactly and used the BIOS file you provided.
The BIOS update utility starts correctly, but it shows the warning:
“The ROM file information does not match the system BIOS”
and “Check RomLayout: Changed”.
It asks whether to continue with a forced update.
Could you please confirm:
Is this BIOS file correct for my Beelink SER5 (Ryzen 5 5560U)?
Is it safe to proceed with the update despite this warning?
Should I choose E (update) or use another method?
I have attached a photo of the warning screen.
Thank you.

Beelink CS-June

savandr11

Hello there.

Could you please kindly show us the complete warning message displayed by the machine when updating the BIOS? It includes the information about what options need to be selected by the machine. Then we can help you better.

The BIOS file we provided for you is suitable for your machine.

Have a nice day~

savandr11

Beelink CS-June

savandr11

Hello there,

During the BIOS update process, when the machine displays a warning message page, please select “Press E” and continue with the BIOS update.

Have a nice day~

luismipr

Same problem here, on a different SER5

My machine:
Beelink SER5, board AZW SER
AMD Ryzen 7 PRO 5850U
BIOS SER5H516 (American Megatrends, 06/12/2026)
2 × 8 GB DDR4-3200
Proxmox VE 9.2.20, kernel 7.0.14-19-pve

Identical reset reason after every unexpected reboot:

x86/amd: Previous system reset reason [0x08000800]: an uncorrected error caused a data fabric sync flood event

an more y mooooree:
Sep 26 14:46:55 pve kernel: x86/amd: Previous system reset reason [0x08000800]: an uncorrected error caused a data fabric sync flood event Sep 26 08:55:53 pve kernel: x86/amd: Previous system reset reason [0x08000800]: an uncorrected error caused a data fabric sync flood event Sep 26 08:08:47 pve kernel: x86/amd: Previous system reset reason [0x08000800]: an uncorrected error caused a data fabric sync flood event

I have tried with other memories, 4GB, 8GB… another NVME hard drive, another SATA hard drive, and it always happens the same.

What happend?? any solutions??

Thx.

Beelink CS-June

luismipr

Hello there,

I suggest you contact our after-sales email for information on replacing the machine - support-pc@bee-link.com

Your machine malfunction might be caused by the motherboard or other hardware components.

Have a nice day~

Farid

savandr11 Did you update it? And did it fix your issue? Kindly provide feedback.