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Question

How can I flash the correct BC firmware? bcver=0.0

  • March 11, 2026
  • 2 replies
  • 10 views

Hi,

 

I’m evaluating Metis PCIe card. It is working. I can run inference and run demo programs. But the fan is running at full speed all the time.

I checked several articles in this community site and realized that BC FW must be upgraded to enable smart fan control.
I confirmed the BC FW version of my card with axdevice command and it reports bcver==0.0.

How can I update or flash the correct BC FW?


Thanks.

2 replies

  • Author
  • Cadet
  • March 11, 2026

I forgot to paste the axdevice command output. Here is the output.

 

$ axdevice -v
INFO: Found PCI device: 03:00.0 Processing accelerators: Axelera AI Metis AIPU (rev 02)
INFO: Found AIPU driver: metis                 212992  0
INFO: Firmware version matches: v1.5.3
[libtriton_linux.c:1321] Device command returned an error code.
[libtriton_linux.c:1322] Consider inspecting the device log via `triton_trace --slog`.
[libtriton_linux.c:1321] Device command returned an error code.
[libtriton_linux.c:1322] Consider inspecting the device log via `triton_trace --slog`.
WARNING: Failed to parse response after board controller firmware version query: ''
INFO: Using device metis-0:3:0
Device 0: metis-0:3:0 4GiB pcie flver=1.4.0 bcver=0.0 clock=800MHz(0-3:800MHz) mvm=0-3:100%
  device_runtime_firmware=v1.5.3
  sw_throttling: 200°C, hysteresis 5°C, throttle rate:12%
  hw_throttling: 105°C, hysteresis 10°C
  pvt_warning_threshold: 95°C
 

Thanks.


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Axelera Team
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  • Axelera Team
  • March 11, 2026

Hi there ​@yasu0710 ! Yep, looks like you’ve done your research well there! 😃 As you say, the BC is what drives smart fan control, so running at full speed constantly isn’t unexpected behaviour in this state.

There’s a guide on how to update the firmware here: https://github.com/axelera-ai-hub/voyager-sdk/blob/release/v1.5/docs/tutorials/firmware_flash_update.md

Let me know how that goes, and if it solves the problem!