Intel Desktop Board 21 B6 E1 E2 Specification Link »
If you can share a photo of the board (or any other printed numbers like AA number, batch code, or FPO), I can help identify it exactly and provide the spec link.
Would you like general tips for identifying legacy Intel desktop boards instead?
Demystifying the "Intel 21 B6 E1 E2": A Guide to Identification and Specs
If you’ve peeked inside an older PC and spotted the marking 21 B6 E1 E2
etched onto the motherboard, you might be scratching your head trying to find a manual or driver for that specific model. The reality is that "21 B6 E1 E2" is not actually a model number.
It is a regulatory and industry specification marking used by Intel across many different desktop boards. Because of this, searching for it directly can be confusing, but don't worry—here is how to identify what you actually have and what the common specs look like. Why "21 B6 E1 E2" Isn't Your Model Number
Intel motherboards often feature various regulatory codes like 21-b6-e1-e2
. These numbers indicate compliance with safety or industry standards rather than the specific board identity. To find your true model number (like ), you should look for a small white barcode label with an (Altered Assembly). Common Variations Found in the Wild
Despite being a generic marking, this code frequently appears on boards from the
eras (roughly 2nd to 4th Gen Intel Core processors). Here are common configurations often sold under this label on sites like Socket LGA 1155 Version : Often paired with 2nd or 3rd Gen CPUs like the Intel i5-2300 : Typically supports memory with 2 to 4 slots. Form Factor Socket LGA 1150 Version : Such as the Intel DB85FL : Intel B85. : Supports Key Specifications Table (Typical for these Boards) Specification CPU Socket LGA 1155 (2nd/3rd Gen) or LGA 1150 (4th Gen) Memory Type DDR3 SDRAM Often 8GB to 32GB (depends on specific model) Integrated Intel HD Graphics (via CPU) 1x PCIe x16, multiple PCI/PCIe x1 slots Helpful Resources and Links
If you need specific technical documentation, you’ll need to use your
on official support pages. However, here are general starting points: Official Intel Support Intel Support Tool to auto-detect your hardware. Manuals & Guides
: General integration guides for these vintage boards can be found on Intel's Integration Hub : Once you identify the model, you can search the Intel Download Center Troubleshooting Tip: "Platform Not Supported" Vintage Intel desktop board BIOS update files needed
The string "21-B6-E1-E2" found on your Intel motherboard is not a specific model number, but a regulatory or industry specification marking often found on boards using the LGA 1155 socket. It is typically associated with Intel’s 2nd Generation (Sandy Bridge) and 3rd Generation (Ivy Bridge) Core processor desktop boards.
Because this is a marking and not a model name, specifications can vary slightly depending on the exact board model (such as the DQ67OW or DB75EN) it is stamped on. Common Specifications for Boards with this Marking Socket Type: LGA 1155 (Socket H2).
Supported CPUs: 2nd and 3rd Generation Intel Core i3, i5, and i7 processors (e.g., i5-2300 or i7-2600).
Memory: Typically supports DDR3 SDRAM with dual memory slots.
I/O Ports: Usually includes Ethernet (RJ-45), USB 2.0, and USB 3.0.
Expansion: Often features PCI Express 2.0 x16 slots for dedicated graphics cards. How to Find Your Exact Specification Link
Intel has discontinued official support for many of these "Desktop Boards," but you can identify your specific model to find its manual:
Check the AA Number: Look for a small barcode label on the board with a number starting with "AA" (e.g., AA G10212-201). This is the true identifier for Intel motherboards. intel desktop board 21 b6 e1 e2 specification link
Use Windows System Information: If the PC is bootable, press [Windows] + R, type msinfo32, and look at the BaseBoard Product field to see the actual model name.
Search the Intel Archive: Once you have the model name (like DH61BE), you can search for its specific "Product Guide" or "Technical Product Specification" on the Intel Support site.
Do you have the AA number from the barcode on the board so I can help you find the exact manual?
The string "/21 B6 E1 E2" is not a model number but a regulatory or industry specification marking . Because multiple Intel motherboards carry these same markings, you must locate the AA (Altered Assembly) number printed on a small barcode label on the board to find the correct specifications . Common Identifiers for This Board
Based on historical data for boards with these markings, yours is likely one of the following:
LGA 1155 Boards (2nd/3rd Gen Intel Core): 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
To get the exact manual and specification link, use these steps:
Locate the AA Number: Look for a small white label on the board (often near the RAM slots or PCI slots) with a code like AA XXXXXX-XXX .
Search the Intel Database: Enter that AA number into the Intel Support Search to pull up the exact Technical Product Specification (TPS).
Identify via Windows: If the board is functional, open the Command Prompt and type:wmic baseboard get product, manufacturerThis will return the actual model name (e.g., DH61WW) . Related Documentation
Intel Desktop Board Regulatory Marking Information: Explains why markings like "21 B6 E1 E2" cannot be used for identification .
Intel 2nd Generation Core Desktop Datasheet: General technical details for the processor family often paired with these boards .
If you can find the AA number or the model name from the command prompt, I can provide the direct link to your motherboard's manual.
The identifier 21 B6 E1 E2 (often seen as /21-B6-E1-E2 ) is not a model number but a regulatory or specification marking found on several older Intel desktop boards, most commonly associated with the Intel Desktop Board DH61CR
or similar 2nd and 3rd Generation Intel Core (LGA 1155) motherboards.
Below is a draft post detailing the specifications and links for this hardware.
🖥️ Hardware Spotlight: Intel Desktop Board (Marking /21-B6-E1-E2) If you've spotted the marking 21-B6-E1-E2
on your blue Intel motherboard, you're likely looking at a "Classic Series" board like the Intel DH61CR
. These boards were workhorses for the Sandy Bridge and Ivy Bridge eras, designed for reliability in home and office builds. Key Technical Specifications
Based on the most common models bearing this marking, here is what you can expect: Socket & CPU Support : Features an socket. It supports 2nd and 3rd Generation Intel Core i7, i5, and i3 processors, as well as Pentium and Celeron chips. : Typically utilizes the Intel H61 Express Chipset 2 DIMM slots. Supports up to If you can share a photo of the
(some documentation suggests a limit of 8 GB depending on the specific AA revision) of DDR3 1600/1333/1066 MHz non-ECC memory. Expansion & Graphics PCI Express 3.0 x16 slot for dedicated GPUs. Dual display support via integrated VGA and DVI-D ports (requires a processor with Intel HD Graphics). Connectivity 10 x USB 2.0 ports (6 rear, 4 internal headers). 4 x SATA 3.0 Gb/s ports. Gigabit Ethernet (10/100/1000 Mbps). The Retro Web Important Resources & Drivers Official Product Guide
: Detailed layout and installation instructions are available via The Retro Web's Intel DH61CR Guide Specifications Update
: For technical errata and addressable memory maps, refer to this Technical Specification Update
: While official support has ended, you can often find legacy drivers and BIOS updates on community-maintained sites or by searching for the specific (found on a small white barcode label) on the Intel Support Site exact model using the AA number found on your board's barcode label? Intel® Product Specifications
Product Specifications * Processors. * Graphics. * Chipsets. * Wireless. * Ethernet Products. * Intel® FPGAs. * Server Products. * Intel® Desktop Board DH61CR Classic Series - The Retro Web
• Intel® 82H61 Platform Controller Hub (PCH) Peripheral Connectivity. • Four SATA (3.0 Gb/s) ports. • Ten Hi-Speed USB 2.0 ports ( The Retro Web Intel® Desktop Board DH61CR Product Guide - The Retro Web
The identifier "21-B6-E1-E2" is not a specific motherboard model name but a regulatory or industry specification marking found on several legacy Intel desktop boards. Because this marking appears on multiple boards, specifications can vary, though most listings associated with this number refer to LGA 1155 (Sandy Bridge/Ivy Bridge) or LGA 1150 (Haswell) motherboards. Typical Specifications
Based on various retail and community sources, boards bearing this marking generally feature the following:
Socket Type: Most commonly LGA 1155 (supporting 2nd and 3rd Gen Intel Core processors) or LGA 1150 (supporting 4th Gen).
Form Factor: Generally Micro-ATX (mATX), making them suitable for standard compact desktop towers.
Memory: Typically supports DDR3 SDRAM. Boards often include 2 to 4 memory slots with a maximum capacity frequently cited around 8GB to 16GB. Connectivity:
I/O Ports: Standard inclusion of Ethernet (RJ-45), USB 2.0, and occasionally USB 3.0.
Expansion: Usually features at least one PCI Express x16 slot for dedicated graphics. Performance Review
These boards are considered legacy hardware and are best suited for specific, low-demand use cases:
Casual Computing & Media: Users on Reddit and Linus Tech Tips report these boards are adequate for basic media centers or casual web browsing when paired with an older i5 or i7 chip.
Stability & Longevity: As official Intel-branded boards, they were originally designed for reliability in business environments rather than overclocking or high-end gaming.
Modern Compatibility Issues: Reviewers note that these "ancient" boards may struggle with modern power-hungry components (like newer GPUs) due to older power delivery designs and BIOS limitations. Identification Tip
To find the exact official specification link for your specific board, look for the AA number (e.g., AA G23116-XXX) printed on a small barcode label on the board itself. You can then search for that specific number on the Intel Support site for precise technical documentation. Intel Desktop Board 21 B6 E1 E2 ER
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: The identifier 21 B6 E1 E2 (often seen
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.
Specification Link
You can find the detailed specification of the Intel Desktop Board DZ77SL-50KZ on the Intel website: https://www.intel.com/content/www/us/en/support/motherboards/desktops/dz77sl-50kz.html
Conclusion
The Intel Desktop Board DZ77SL-50KZ is a powerful and feature-rich motherboard designed for 3rd generation Intel Core processors. With its support for USB 3.0, SATA 6Gb/s, and Intel Gigabit Ethernet, this motherboard offers excellent performance and connectivity options. Whether you're a gamer, content creator, or business user, the Intel Desktop Board DZ77SL-50KZ is an excellent choice for your next PC build.
Additional Resources
FAQs
Q: What is the maximum memory capacity of the Intel Desktop Board DZ77SL-50KZ? A: The maximum memory capacity of the Intel Desktop Board DZ77SL-50KZ is 32GB.
Q: What type of processors does the Intel Desktop Board DZ77SL-50KZ support? A: The Intel Desktop Board DZ77SL-50KZ supports 3rd generation Intel Core i7, i5, and i3 processors.
Q: What is the LAN speed of the Intel Desktop Board DZ77SL-50KZ? A: The LAN speed of the Intel Desktop Board DZ77SL-50KZ is up to 1000Mbps.
Q: What type of audio does the Intel Desktop Board DZ77SL-50KZ support? A: The Intel Desktop Board DZ77SL-50KZ supports 7.1-channel audio, with Dolby TrueHD.
If you are reinstalling this board, keep the following in mind:
