Exclusive analysis of the board layout confirms that the D21B6E1E2 utilizes the LGA 1155 socket . This architecture places it firmly in the "Sandy Bridge" and "Ivy Bridge" generation (2nd and 3rd Generation Intel Core processors).
Intel Desktop Board 21-B6-E1-E2 w/ Intel i5-2300 4GB ... - eBay intel desktop board 21 b6 e1 e2 specification exclusive
Here is the tied to that specific BIOS versioning path: Exclusive analysis of the board layout confirms that
Published: Exclusive Release
The Hidden Workhorse: Unpacking the Intel Desktop Board 21 B6 E1 E2 intel desktop board 21 b6 e1 e2 specification exclusive