Intel Desktop Board 21 B6 E1 E2 Specification Exclusive ✦ Premium & Authentic

"21 B6 E1 E2" is not a specific Intel motherboard model name, but rather a regulatory or industry specification marking found on several different Intel boards from the early 2010s. To find exact specifications, you must identify the board's

(e.g., AA G14xxx-xxx) or the model name printed near the processor socket (e.g., DH61BE).

Based on common listings and hardware reports associated with this marking, here is a review of the typical hardware platform it represents. Hardware Platform Overview Most boards featuring this marking belong to the LGA 1155 socket

family, supporting 2nd and 3rd Generation Intel Core processors. Processor Support intel desktop board 21 b6 e1 e2 specification exclusive

: Primarily designed for "Sandy Bridge" (2nd Gen) and "Ivy Bridge" (3rd Gen) CPUs like the Intel Core i5-2300 DDR3 SDRAM

. Most consumer versions of these boards feature two DIMM slots, supporting up to 16GB of total system memory. : Typically includes one PCI Express 2.0 x16

slot for a dedicated graphics card and occasionally additional PCIe x1 slots. Connectivity "21 B6 E1 E2" is not a specific

: Standard I/O usually consists of USB 2.0 ports, Ethernet (RJ-45), and basic integrated video outputs like VGA or DVI. Performance Review

It is important to clarify upfront: There is no official Intel Desktop Board with the model number “21 B6 E1 E2.”

This string of characters likely refers to one of two things: A misread silkscreen code from the board itself (e

  1. A misread silkscreen code from the board itself (e.g., component numbers, voltage regulator codes, or PCB revision numbers).
  2. A partial extraction from a BIOS or diagnostic tool (e.g., “E21B6” or “E1/E2 stepping codes”).

However, based on common Intel naming conventions (e.g., Intel Desktop Board D945GCCR, DG31PR, DB65AL), the closest known production board associated with cryptic codes like E21B6 is the Intel Desktop Board DQ67SW (or similar Q67 Express chipset boards), where E21B6 appears on internal PCB layers or power regulation phases.

Since no official "21 B6 E1 E2" model exists, this report provides two deliverables:

  1. How to identify your real Intel board using the codes you have.
  2. The exclusive technical specifications of the most likely actual board (Intel DQ67SW/B61 series), including rare internal jumper and voltage regulator data not found in standard user manuals.

The "Secret" Power Specification (Exclusive)

No other guide will tell you this: The 21 B6 E1 E2 boards share a VRM (Voltage Regulator Module) signature. Both variants use a 4-phase VRM for the CPU Vcore, but critically, they lack VRD 12.0 support. This means:

How to Visually Authenticate a "21 B6 E1 E2" Board

Are you looking at an online listing or a dusty board in a lab? Here is how to confirm:

  1. Locate the code: It is printed in white silkscreen either between the PCIe x16 slot and the CMOS battery or near the rear I/O USB ports.
  2. Check for "RoHS" mark: All genuine 21 B6 E1 E2 boards have a small green RoHS leaf next to the code.
  3. Count the SATA ports – 4 ports = DG41RQ (common). 6 ports + eSATA = DP45SG (rare).

5. Chipset & Graphics

Intel H67 / B65 Express Chipset: