SER5 5800H / AZW_SER5_V2.0 – POSTed Once, Froze in BIOS, Now No POST/Video

Chuck_C

Hi everyone,

I’m hoping someone familiar with the SER5 5800H or the AZW_SER5_V2.0 motherboard can help me diagnose a very strange intermittent failure.

The system is a Beelink SER5 with Ryzen 7 5800H, motherboard marked AZW_SER5_V2.0. It had previously stopped working and appeared to be completely dead except for the power LED and fan. I recently took it apart to troubleshoot it.

With the NVMe SSD removed and only one 16GB DDR4-3200 SODIMM installed in Slot 1, something unexpected happened: the machine POSTed normally.

It displayed the AMI UEFI Interactive Shell. I connected a keyboard, typed exit, and successfully entered the BIOS. The BIOS correctly identified:

AMD Ryzen 7 5800H with Radeon Graphics
16GB DDR4
BIOS version: 5800H602
Build date: 06/15/2023

I have photos showing both the successful UEFI shell and BIOS screens.

Unfortunately, while the machine was simply sitting in the BIOS, the display suddenly went black. The power LED remained on and the fan continued running. At that point, even holding the power button would not shut the machine down.

Since then, I have been unable to get it to POST again.

So far I have tried:

Both original 16GB SODIMMs individually
Both SODIMM slots
HDMI and DisplayPort
Removing the NVMe SSD
Removing the Intel AX200 Wi-Fi card
CLR CMOS with power disconnected
Disconnecting the RTC/CMOS battery for several minutes and discharging the board
Original 19V/5.26A (100W) power supply
A second known-working Beelink 19V power supply for a POST test
Minimal configuration: motherboard/CPU, cooler, one SODIMM and display only

The current symptom is consistently power LED on + fan running + no video/POST.

The strange part is that the system unquestionably POSTed and operated normally in the UEFI shell and BIOS once during this troubleshooting session, so the CPU, iGPU, memory controller, RAM and firmware were at least functional at that time.

The motherboard identification is:

AZW_SER5_V2.0
SER5-5800H 0+0G

I have attached photos of the motherboard identification and the successful BIOS screen.

Does anyone know of a common failure on this motherboard that could cause intermittent POST followed by a hard freeze like this?

I would also be interested in obtaining the correct BIOS image for this exact AZW_SER5_V2.0 / 5800H board, including the possibility of programming the SPI flash externally if necessary.

Finally, does anyone know whether Beelink/AZW supplies replacement motherboards for this model? Since the Ryzen 7 5800H is soldered to the board, I would need the complete motherboard/CPU assembly.

I’m comfortable disassembling the system and doing further diagnostics with a multimeter or external SPI programmer if someone can point me toward useful test points/components.

Thanks for any suggestions!

Beelink CS-June

Chuck_C

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 lastest BIOS file for your machine.

After receiving the picture of your machine’s serial number, we can check if there is still stock of the corresponding motherboard available.

If there is still inventory of machine motherboards available, you can purchase new ones from us to try and solve the problem.

The phenomenon of “machine intermittently experiencing a self-check followed by a severe crash” is a common machine malfunction issue.

Have a nice day~

ali066khan

it later froze even while sitting in BIOS and now stays powered with no POST, I’d investigate the motherboard’s power rails and SPI flash before replacing RAM or other peripherals. An intermittent VRM or BIOS-flash issue could explain the sudden freeze followed by the persistent no-POST condition.

Chuck_C

Beelink CS-June

Chuck_C

Beelink CS-June And this thing should still be under the 3-year warrantee if it is unrecoverable, correct?

Beelink CS-June

Chuck_C

Hello there,

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

The information you provided seems to be a picture of the motherboard, not the serial number information of the machine we need.

If the solutions we offer don’t work, you can apply for machine warranty within the warranty period.

Regarding the warranty period of the machine, we also need to determine it based on the machine’s SN serial number.

Have a nice day~

Chuck_C

I removed the bottom plate when I was troubleshooting this last month, and I misplaced it. I am hoping I can find it. In the meantime, is there anything on the motherboard that will identify which BIOS file I will need?

Beelink CS-June

Chuck_C

Hello there,

May I confirm if your machine is SER5 MAX 5800?

If so ,please check the BIOS file that I sent you in your PM.

Have a nice day~

Chuck_C

Beelink CS-June

Chuck_C

Can I get information on this computer’s warrantee status? I’d like to get this taken care of ASAP. Thank you.

Beelink CS-June

Chuck_C

Hello there,

Sorry for your waiting.

Based on the SN picture you provided, it seems that your SER5 MAX 5800 machine is still within the warranty period at present.

Have a nice day~