Two SFP+ Ports Shown with Yellow Bang Marks in Windows* Device Manager for Intel® Server Board S2600ST Family





What am I seeing?

Two SFP+ ports shown with Yellow Bang marks in Windows Device Manager for Intel® Server Board S2600ST Family.

You may also see the message during the POST that: RX/TX is disabled on this device because an unsupported SFP+ module type was detected.

Why am I seeing it?

The Intel® Server Board S2600ST Product Family offers SFP+ 10Gbps connectivity, through an optional LAN riser accessory card AXXSTSFPPKIT. The network controller is integrated into the Platform Controller Hub (PCH) and the riser accessory provides the physical interface.

The AXXSTSFPPKIT SFP+ LAN Riser option is only supported when installed into PCIe* add-in slot #5 on the server board, which includes an expansion connector allowing for communication to the onboard PCH and BMC.

You can use the SFP+ LAN Riser option in single or dual processor configurations.

For further references, review the Technical Product Specification for the Intel® Server Board S2600ST Family.


The 2 SFP+ NICs are being detected by the Operating System, even with no riser card installed. SFP+ NICs listed in Device Manager (or equivalent) are the ones integrated into the PCH.

How to fix it.

In order to disable SFP+ NICs and see only RJ-45 NICs, you should update the NVM image on the integrated X722 network controller:

  1. Download S2600ST NVM Update utility.
  2. Updating Your NVM Using Interactive Mode

    • Extract the update package into a temporary folder.
    • Install iqv driver if needed by running the install script.
    • Start the utility_name by running the executable. For example, on an
      x64 uEFI system, type:   
      # nvmupdate64e.efi
      On x64 Microsoft* Windows* system, type:
      C:\> nvmupdatew64e.exe

      On an x64 Linux* system, type:
      # nvmupdate64e

  3. Follow the prompts to update the NVM image on the desired device.
  4. Power Cycle the server system to apply changes.

example image