Intel Desktop Board 21 B6 E1: E2 Specification Exclusive
A single anchors the board's modular design, allowing users to drop in standalone graphics controllers.
The code printed on legacy motherboards, such as , is not an official model number but rather a specialized regulatory, layout, or PCB text revision indicator found on certain classic Intel Desktop Boards. While users looking at the physical board often see this exact text screen-printed near the PCIe slots or the I/O shield, it typically maps back to legendary LGA 1155 socket architectures running the Intel Q67, H61, or equivalent 6-series express chipsets . These systems fundamentally served as the backbone for the highly successful 2nd Generation Intel Core processor family (Sandy Bridge).
As these boards are considered legacy hardware (designed for 32-bit/64-bit systems like Windows 7), they are primarily available through secondary markets: : Most units are sold as Used or Refurbished .
If you are repairing a board with the code and the front panel header is broken, here is the exclusive pinout (from Intel’s internal 2009 engineering PDF): intel desktop board 21 b6 e1 e2 specification exclusive
Use Intel® Desktop Board ID Utility or check the label on the board itself (model numbers start with D — e.g., DB65AL , DQ67SW ). The string 21 b6 e1 e2 is not a specification but a BIOS feature fingerprint.
If you own an Intel Desktop Board currently running a BIOS version ending/containing , your exclusive feature is low-level hardware voltage control and EFI shell-based flashing , which later revisions (e.g., e3 , e4 ) deliberately disabled.
Replacing failed components in legacy infrastructure. A single anchors the board's modular design, allowing
Because "21 B6 E1 E2" is a generic regulatory code, it cannot be used to find specific drivers or hardware specifications. To find the correct model, you must locate the printed on a small barcode label on the board.
Because this marking is not a specific model name, "21 B6 E1 E2" does not have a single set of specifications. Instead, it is commonly associated with several boards, such as the DH61WW , DH61HO , or DH61BF . Common Specifications Found on These Boards
The following specifications are compiled from technical data regarding the Intel 21-B6-E1-E2 platform. Core Architecture and Socket LGA 1155 / Socket H2. These systems fundamentally served as the backbone for
2nd and 3rd Generation Intel Core i7, i5, i3, Pentium, and Celeron processors (Sandy Bridge and Ivy Bridge architectures) . Chipset: Typically the Intel H61 Express Chipset . Memory: Two DDR3 SDRAM DIMM slots . Supports speeds of 1066 MHz or 1333 MHz . Maximum capacity usually capped at 16GB . Expansion & Connectivity: 1 x PCI Express 2.0 x16 slot for dedicated graphics . USB 2.0 and sometimes USB 3.0 ports . Standard VGA or DVI-D video output . 10/100/1000 Mbps Ethernet (RJ-45) . Form Factor: Often Micro-ATX (mATX) or Classic Series . How to Find Your Actual Model Number
via dual-channel slots, often limited to 1333/1600 MHz depending on the specific model and CPU. Expansion Slots: Usually includes at least one PCI Express 2.0/3.0 x16 slot for dedicated graphics. I/O Ports:
All three revisions utilize a standard 24-pin ATX main power connector and a 4-pin CPU auxiliary connector. Notably, the E2 board introduces a secondary 4-pin connector for extreme stability, though this is optional for most configurations. Thermal monitoring is managed via the Intel Quiet System Technology (QST), with fan headers supporting both PWM and DC control across three chassis fan ports.
