Why Do X520 Network Ethernet Controllers Appear Differently in BIOS?
Content Type: Product Information & Documentation | Article ID: 000059142 | Last Reviewed: 01/13/2023
The BIOS displays one adapter as Intel 10G 2P X520 and the other adapter as Intel Ethernet Server Adapter X520-2.
The Intel 10G 2P X520 is an Original Equipment Manufacturer (OEM) and is not covered by Intel warranty, as Intel doesn't support OEM or LAN on Motherboard (LOM).
The Intel® Ethernet Converged Network Adapter X520-DA2 (X520-2) is a genuine ethernet adapter (add-in card) that is covered by Intel warranty and support.
See computer manufacturer support websites for support information on OEMs.