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Onboard X722 NICs Missing After Firmware Corruption

  • November 3, 2025
  • 1 reply
  • 39 views

I have a 3 node cluster running 7.3.1 and while updating LCM complained that it cannot update NICs but I need to do manually listing KB-10634. I downloaded the x722 0x800042eb update file, executed and failed at the last minute and after the update both NICs are disappeared. I spoke with Supermicro and they are not willing to do anything because the motherboard serial is more than 5 years old and OOW. But one of the Tech advised me to program this chip (AT45DB041E-SSHN) with the 722M4B.bin file at my own risk and discretion, which I did, but nothing changed. nvmupdate64e just cannot see/find these two NICs.

So what I tried next was to copy the above chip content from the second good known server and programmed the corrupted chip, but still nothing changed. The good new is that I can still install and use the latest AOS with a PCIE add on X550 card and the server works fine.

But, I still would like to get those 2 x722 onboard NICs back and I really appreciate your help regarding this and thank you in advance.

Best answer by aluciani

Hey ​@SR2K9 

Nutanix does not provide tools or support for manual chip programming. If the hardware is out of warranty and Supermicro cannot assist, the best path forward is to continue using the add-on NIC.

Unfortunately, if the NICs are not visible at the PCI layer, software-based recovery (including nvmupdate64e) will not work. The only options are:

  • Motherboard Replacement: Since the NICs are onboard, replacing the board is the most reliable fix.
  • Add-On NIC: As you mentioned, using an Intel X550 or similar PCIe NIC is a valid workaround and fully supported by AHV and AOS.

Hope this helps.

This topic has been closed for replies.

1 reply

aluciani
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  • Chevalier
  • 338 replies
  • Answer
  • November 14, 2025

Hey ​@SR2K9 

Nutanix does not provide tools or support for manual chip programming. If the hardware is out of warranty and Supermicro cannot assist, the best path forward is to continue using the add-on NIC.

Unfortunately, if the NICs are not visible at the PCI layer, software-based recovery (including nvmupdate64e) will not work. The only options are:

  • Motherboard Replacement: Since the NICs are onboard, replacing the board is the most reliable fix.
  • Add-On NIC: As you mentioned, using an Intel X550 or similar PCIe NIC is a valid workaround and fully supported by AHV and AOS.

Hope this helps.