PowerEdge: Failure to Detect All Mellanox CX-6 Industry Cards during Windows DUP firmware updates

Summary: On Dell PowerEdge 17G servers equipped with factory installed industry standard ConnectX 6 Dx cards, applying the Mellanox ConnectX 6 Dx firmware update from within the operating system may fail to detect all adapters. This can result in incomplete firmware updates in multi card configurations. This limitation does not apply to OEM Dell branded cards. ...

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Symptoms

  • DUP execution reports fewer Mellanox adapters than physically installed.
  • Firmware updates apply only to detected cards; remaining cards stay on older firmware.
  • iDRAC or Lifecycle Controller may show inconsistent firmware versions across Mellanox cards.

Cause

The Dell Update Package (DUP .exe) and Mellanox Software Tools (MST) driver are incorrectly linked and prevents the firmware update process from detecting all adapters when performed from the operating system.

Note: This issue applies only to factory-installed industry-standard cards and does not affect OEM Dell-branded versions.

 

Resolution

Apply the appropriate DX or LX firmware update:

  • ConnectX-6 DX Network Firmware - Firmware 22.46.3048_A00_03

  • ConnectX-6 LX Network Firmware - Firmware 26.46.3048_A00_03

Note: When using dell.com/support Drivers & Downloads, ensure that you select the correct operating system to display the applicable files.

Affected Products

AX-770, Dell XC Core XC670, Dell XC Core XC6715, Dell XC Core XC770, OEMR XL R670, OEMR XL R770, OEMR XL R6715, OEMR XL R6725, OEMR XL R7715, OEMR XL R7725, PowerEdge M7725, PowerEdge R470, PowerEdge R570, PowerEdge R670, PowerEdge R6715 , PowerEdge R6725, PowerEdge R770, PowerEdge R770AP, PowerEdge R7715, PowerEdge R7725, PowerEdge R7725xd, PowerEdge XE7740, PowerEdge XE7745, PowerEdge XE8712, PowerEdge XE9680, PowerEdge XE9780, PowerEdge XE9785, PowerEdge XE9785L, Dell vSAN R770 Ready Node, VxRail VP-770 ...
Article Properties
Article Number: 000415145
Article Type: Solution
Last Modified: 28 Jan 2026
Version:  1
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