Intel Desktop Board: 21 B6 E1 E2 Specification Link

2nd Generation Intel Core i7, i5, and i3 processors (e.g., Intel Core i5-2300 ).

If the board fails to POST, check for BIOS version compatibility, especially when using 3rd Gen Intel CPUs on older 2nd Gen boards.

Intel Desktop Board 21-B6-E1-E2 w/ Intel i5-2300 4GB ... - eBay intel desktop board 21 b6 e1 e2 specification link

Typically includes one PCI Express 2.0 x16 slot for dedicated graphics and may include additional PCIe x1 slots depending on the exact form factor. Storage: SATA 3.0 Gb/s and SATA 6.0 Gb/s ports.

Intel has discontinued its "Desktop Board" product line and has moved many documentation assets. To find the exact specification for your specific board version: 2nd Generation Intel Core i7, i5, and i3 processors (e

DDR3 SDRAM . Most boards with this footprint feature two DIMM slots supporting dual-channel configurations.

LGA 1155 (Socket H2), supporting Sandy Bridge and some Ivy Bridge processors. - eBay Typically includes one PCI Express 2

The identifier refers to a marking found on certain legacy Intel motherboards, typically those from the 2nd Generation Intel Core era . This specific string is often printed directly on the PCB but does not always correspond to the primary model number (such as DH61WW or DQ67SW). Core Specifications Overview