Intel technical documents list several other fatal memory errors in the same range:
Based on common listings and technical descriptions for these markings, your board is likely one of the following: Intel DB85FL : A Micro-ATX board with an socket, supporting 4th Generation Intel Core processors. Intel LGA 1155 (2nd/3rd Gen) : Many boards with these markings are older models (Socket H2) paired with processors like the Specific Part Number (AA Number) intel desktop board 01 21 b6 e1 e2 er
If you have this motherboard in your possession and are struggling to find the exact retail model name (e.g., to update the BIOS or find compatible RAM speeds), avoid relying on the "21 B6 E1 E2" barcode sticker. Instead, use these methods: Intel technical documents list several other fatal memory
: These boards are considered "end-of-life" and are mainly used today for maintaining older office workstations or lightweight home servers (e.g., TrueNAS or basic Linux builds). Based on typical configurations for boards marked with
Based on typical configurations for boards marked with these identifiers: