: Many users reporting this marking have boards like the Intel Desktop Board DH61CR or DH61BE . Socket : LGA 1155 . Memory : DDR3 SDRAM . Ports : Often includes USB 3.0 and Ethernet (RJ-45) . How to Find Your Specific Specs
: Standard inclusion of Ethernet (RJ-45), USB 2.0, and occasionally USB 3.0.
Primarily Windows XP Professional, Windows 7 (32/64-bit). intel desktop board 21 b6 e1 e2 specification link
Intel boards carrying these distinct regulatory tags generally span two core legacy architecture generations:
However, boards featuring this specific marking typically align with the following general specifications: : Many users reporting this marking have boards
The board has six SATA 6Gb/s ports, which support Intel Rapid Storage Technology (RST) and Intel Smart Response Technology (SRT). Additionally, there is one mSATA 6Gb/s port, which can be used for Intel Smart Response Technology.
Unlike modern motherboards with obvious model numbers (like Z790 or B660), older Intel boards often use a cryptic silkscreen code. If you have found the string "21 B6 E1 E2" printed on your motherboard, you are likely one step away from identifying the true model number. Ports : Often includes USB 3
The string "/21 B6 E1 E2" (often written as 21-b6-e1-e2) found on your Intel desktop board is a regulatory and industry specification marking
Once you have your true motherboard name (such as the legacy Intel Desktop Board DG35EC or the Intel Desktop Board D845GERG2 ), you can cross-reference it with official technical documentation repositories.
Once you have the AA number or model name, use these official Intel tools to find your specific manual and specifications: Intel S975XBX2 Workstation Board