Intel Desktop Board 21 B6 E1 E2 Specification Link Access

Searching for the exact specifications for an Intel Desktop Board labeled "21 B6 E1 E2" can be frustrating. 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.

In this comprehensive guide, we will decode the "21 B6 E1 E2" label, provide the correct specification link to Intel’s official documentation, and outline every technical detail you need for drivers, CPU compatibility, and RAM upgrades.

Use this filtered search for all legacy Intel Desktop Boards:
https://www.intel.com/content/www/us/en/support/products/52586/desktop-boards.html

Published by Tech Archive Solutions | Updated: May 2026

If you’ve landed here searching for the phrase "intel desktop board 21 b6 e1 e2 specification link", you are likely troubleshooting a legacy Intel motherboard, trying to identify a specific OEM board, or hunting down long-lost driver support pages. This alphanumeric sequence is unusual, as it does not directly match Intel’s standard product codes (like DQ67SW or DH61CR). Instead, based on pattern analysis, "21 B6 E1 E2" points toward a diagnostic error code sequence or a POST (Power-On Self-Test) LED readout specific to Intel Desktop Boards from the Core 2 Duo/Core i-series (LGA775/LGA1155/LGA1156) era.

This article decodes the meaning behind “21 b6 e1 e2,” provides the official specifications for the likely motherboard families, and—most importantly—delivers the working specification links for Intel’s archived product documentation.

The "21 B6 E1 E2" label designates the Intel DQ67OW Executive Series motherboard. It is a solid LGA1155 platform supporting up to 32GB of DDR3 RAM, USB 3.0, and Intel vPro business features. Use the archived links above to access the full PDF manuals and driver sets.

The alphanumeric sequence "21 B6 E1 E2" (often preceded by "/21") is not a specific Intel motherboard model number, but rather a regulatory or industry specification marking found on several older Intel boards. Because this code is used across different products, "specifications" can vary depending on which actual board you have. 

However, boards featuring this specific marking typically align with the following general specifications:  Common Core Specifications 

Based on listings for boards with this marking, they usually support 2nd and 3rd Generation Intel Core processors:  Socket Type: LGA 1155 (Socket H2). Memory Type: DDR3 SDRAM, typically with 2 memory slots. I/O Ports: Ethernet (RJ-45). USB 2.0 and USB 3.0 ports.

Video outputs usually include VGA, DVI, or HDMI depending on the specific sub-model. Expansion: 1 x PCI Express x16 slot for dedicated graphics.  How to Find Your Exact Model 

Since "21 B6 E1 E2" is just a regulatory mark, you should look for the AA number (Altered Assembly) printed on a small barcode label on the board itself. 

Official Search: Use the Intel Product Specifications (ARK) tool to enter the AA number or a model name like "DH61WW" or "DH61HO" often found near the CPU socket.

Manuals: General guidance for these legacy boards can be found in the Intel Integration Guide or on sites like ManualsLib for similar regulatory-labeled boards.  intel desktop board 21 b6 e1 e2 specification link

Do you have the AA number or a 6-digit code from the board's barcode so I can find the exact manual for you? 

intel® Desktop board DH61HO - Classic Series - Mouser Electronics

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

, not a model number. Because these markings appear on many different boards to indicate compliance with standards (such as FCC or safety regulations), they cannot be used to find a specific board's technical specifications. University of Colorado Boulder How to Identify Your Actual Board Model To find the correct specification link, you must locate the AA (Altered Assembly) number or the model name printed elsewhere on the board. Look for the AA Number

: Search for a small barcode label on the board with a number like AA XXXXXX-XXX . This is the most reliable way to identify an Intel board. Check the Model Name

: Look for a silkscreened name starting with "D" or "DH" (e.g., Use Software : If the computer is functional, use the Windows System Information tool to find the "BaseBoard Product" or manufacturer details. Likely Specifications Based on Similar Reports

While "/21 B6 E1 E2" is just a marking, users often find this code on older Intel boards featuring the following common traits: Socket Type : Frequently associated with : Often found on boards using the : Typically supports RAM, depending on the generation. Official Resource Links

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

"21 B6 E1 E2" is not a specific model name but is often cited in community forums and secondary marketplaces to refer to older Intel H61 or H81 chipset motherboards, frequently those with LGA 1155 or LGA 1150 sockets

. These numbers are often part of regulatory or specification markings on the physical board rather than the actual model identifier. Identified Specifications

Based on common listings for boards bearing these markings, the technical specifications typically include: Socket Type : Most frequently associated with Socket LGA 1155 (supporting 2nd and 3rd Gen Intel Core processors) or Socket LGA 1150 (supporting 4th Gen processors). Form Factor : Generally (mATX) or occasionally : Typically features 4 DDR3 RAM slots

with support for up to 8GB or 16GB depending on the specific sub-model. : Common slots include PCI Express (PCIe) and legacy OS Compatibility : Originally designed for systems running or older 32-bit/64-bit environments. How to Find Official Specifications

Because "21 B6 E1 E2" is a generic marking, you must find the (Altered Assembly) to get the exact Intel Desktop Board model and manual. Locate the AA Number Searching for the exact specifications for an Intel

: Look for a small barcode label on the motherboard. It will follow a format like G12345-XXX Search the AA Number : Enter this code into the Intel Product Specifications (ARK) tool

to retrieve the official technical product specification (TPS). Check System Information : If the board is currently powered on, use the Microsoft System Information app to find the "BaseBoard Product" name.

Intel /21 B6E1E2 Mobo w/Intel i5-2488 3.1 GHz SP00Q w/Fan & Heatsink & Backplate

The code "21-B6-E1-E2" is not a specific model name but a regulatory marking often found on Intel desktop boards from the 2nd Generation Core processor era. This marking is frequently associated with the Intel Desktop Board DH61WW or similar boards using the Intel Q67 Express or H61 chipsets. General Specifications

Based on listings for boards bearing this identifier, the hardware typically includes:

Socket: LGA 1155, supporting 2nd and 3rd Generation Intel Core processors (e.g., i3, i5, i7-2xxx and 3xxx series).

Memory: 2 x DDR3 DIMM slots, typically supporting up to 16GB of DDR3 SDRAM.

Expansion: 1 x PCI Express 2.0 x16 slot for dedicated graphics.

I/O Ports: Ethernet (RJ-45), USB 2.0, and sometimes USB 3.0.

Chipset: Often features the Intel H61 or Q67 Express chipset. Finding Your Exact Model

Because "21-B6-E1-E2" is used across multiple board types, you should use the AA number (e.g., G23116-xxx) printed on a small barcode label on the board to find the specific manual and driver list on the Intel Support site. Relevant Specification Links:

Intel Desktop Board DH61WW Specifications: View on the Intel Product Specifications page.

DH61AGL Specification Guide: A related model guide can be found on Intel's support archives. Published by Tech Archive Solutions | Updated: May

Intel has officially archived their Desktop Boards, meaning the primary support pages often redirect to generic hubs. You can access the official product guide and technical specifications via the archived Intel links below:

Here are the full specs for the Intel DQ67OW Desktop Board:

Processor Support

Memory

Video & Graphics

Storage & Connectivity

USB & I/O

Expansion Slots

Key Features

If your board is stuck at code 21 → B6 → E1 → E2 (or looping), follow this sequence:

If the code persists after steps 1-5 and you have confirmed the board model from Part 4, the chipset (southbridge) may have failed – a common issue on H61 boards after 10+ years of use.

The Intel Desktop Board (DG41RQ) identified by the code 21 B6 E1 E2 is strictly a legacy or retro computing board.