Intel Desktop Board 21 B6 E1 E2 Specification Link [repack] May 2026

Intel Desktop Board D21B6 (E1/E2) — Quick Specification Report

If you can provide the correct model name:

For example, if the board is Intel DH67BL, the spec link is:
https://www.intel.com/content/www/us/en/products/sku/50035/intel-desktop-board-dh67bl/specifications.html

Would you like help identifying the model if you can share a photo of the board or any other printed text near the center or edge?

You're looking for the specifications of the Intel Desktop Board D21-B6-E1-E2!

According to Intel's website, the Intel Desktop Board D21-B6-E1-E2 is a server board, not a typical desktop board, and it's part of the Intel S1200BT family.

Here are the key specifications:

General Information

Product Code: D21-B6-E1-E2
Board Form Factor: Proprietary
Board Size: 13.25 inches x 12.28 inches (336 mm x 312 mm)

Processors

Supports Intel Xeon processor E5-2600 v2 and E5-2600 v1 product families
Supports up to 2 processors

Memory

8 DIMM sockets (4 per CPU)
Supports up to 256 GB of DDR3 memory
Memory speed: up to 1866 MHz

Expansion Slots

2 x PCIe* 3.0 x16
2 x PCIe* 3.0 x8 (mechanical x16)
1 x PCIe* 2.0 x4

Storage

10 x SATA ports (6Gb/s)
Supports RAID 0, 1, 10, 5

Networking

2 x Intel I350-T4V2 Gigabit Ethernet Controller

Graphics

Matrox G200eW graphics (integrated)

USB and Audio

4 x USB 3.0 ports
2 x USB 2.0 ports
1 x HD audio header

Here is the official specification link from Intel:

https://www.intel.com/content/www/us/en/products/sku/80873/intel-desktop-board-d21-b6-e1-e2/specifications.html

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. intel desktop board 21 b6 e1 e2 specification link

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 identifier Intel Desktop Board 21-B6-E1-E2 refers to a marking found on certain legacy Intel motherboards, typically those from the 2nd Generation Intel Core era. This specific string is often printed directly on the PCB but does not always correspond to the primary model number (such as DH61WW or DQ67SW). Core Specifications Overview

Based on hardware listings for boards carrying this marking, the primary technical specifications include:

Socket Type: LGA 1155 (Socket H2), supporting Sandy Bridge and some Ivy Bridge processors.

Supported Processors: 2nd Generation Intel Core i7, i5, and i3 processors (e.g., Intel Core i5-2300).

Memory Support: DDR3 SDRAM. Most boards with this footprint feature two DIMM slots supporting dual-channel configurations.

Expansion Slots: Typically includes one PCI Express 2.0 x16 slot for dedicated graphics and may include additional PCIe x1 slots depending on the exact form factor. Storage: SATA 3.0 Gb/s and SATA 6.0 Gb/s ports.

Rear I/O Ports: Standard legacy connectivity including USB 2.0, USB 3.0, Ethernet (RJ-45), and various video outputs like VGA, DVI, or DisplayPort depending on the specific model variant. How to Find Official Specification Links

Intel has discontinued its "Desktop Board" product line and has moved many documentation assets. To find the exact specification for your specific board version:

Identify the AA Number: Look for a small barcode label with a number starting with "AA" (e.g., AAD53350-205). This is the most accurate way to identify your board.

Use the Intel Support Site: Visit the Intel Support for Boards & Kits page. Enter your AA number or the primary model number (often found near the PCIe slot) into the search bar.

Check Third-Party Databases: If the official Intel link is archived, sites like eBay often list detailed physical specs for these used boards. Technical Troubleshooting & Drivers

Drivers: For Windows 7 and legacy 32-bit/64-bit systems, drivers are usually available through the Intel Download Center. Intel Desktop Board D21B6 (E1/E2) — Quick Specification

Common Issues: If the board fails to POST, check for BIOS version compatibility, especially when using 3rd Gen Intel CPUs on older 2nd Gen boards.

Do you need help identifying the primary model number from your board's layout or serial label?

Intel Desktop Board 21-B6-E1-E2 w/ Intel i5-2300 4GB ... - eBay

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 sequence 21 B6 E1 E2 (often found near markings like E210882) is not actually a model number for an Intel desktop board, but rather a set of regulatory and industry specification markings. Because these markings are shared across many different boards to indicate compliance with electronic standards, they cannot be used to find a unique specification link.

To find the correct specification for your board, you need the AA number (Altered Assembly), which is a small barcode label found on the motherboard itself. How to Find Your Actual Specifications

Check the Physical Board: Look for a small white sticker with a barcode. It will typically have a 6-digit number followed by a 3-digit number (e.g., G10212-201).

Use Windows Command Prompt: If the board is currently in a working PC, open Command Prompt and type:wmic baseboard get product, ManufacturerThis will return the actual model name (e.g., DH67BL, DQ67SW).

Search the Intel Database: Once you have the AA number or Model Name, search for it on the Intel Product Specifications (ARK) site or the Intel Support Page. Known Details for Boards with these Markings

Boards bearing the "21 B6 E1 E2" marking are typically from the Sandy Bridge (2nd Gen) or Ivy Bridge (3rd Gen) era (circa 2011–2013). Common specs for these legacy boards include: Socket: LGA 1155. Chipsets: Often Intel Q67, H61, or B75. Memory: DDR3 SDRAM (typically 2 to 4 slots).

Storage/Expansion: SATA 3.0 or 6.0 Gb/s ports and PCIe 2.0/3.0 x16 slots.

Finding specific information for the Intel Desktop Board 21 B6 E1 E2 can be challenging because these markings—often found printed directly on the PCB—are generally regulatory or industry specification markings rather than the actual model number.

However, based on community reports and hardware listings, this identifier is most commonly associated with Intel 6-series chipset boards (such as the Q67 or H61) that utilize the LGA 1155 socket for 2nd Generation Intel Core processors. Quick Specifications Summary

If your board features the "21 B6 E1 E2" marking, it likely conforms to the following hardware profile: Typical Specification CPU Socket LGA 1155 (Socket H2) Compatible CPUs 2nd Gen Intel Core (i3, i5, i7), Pentium, and Celeron Chipset Often Intel Q67 Express or H61 Express Memory DDR3 SDRAM (typically 2 slots) Expansion 1x PCIe 2.0 x16 slot; additional PCIe x1 slots Storage SATA 2.0 (3 Gb/s) and sometimes SATA 3.0 (6 Gb/s) I/O Ports Would you like help identifying the model if

USB 2.0 (some models have USB 3.0), Ethernet (RJ-45), VGA/DVI How to Find Your Official Specification Link

Because "21 B6 E1 E2" is not a unique model name, you must identify the AA number or the actual model name (e.g., DH61BE, DQ67SW) to find the correct technical product specification (TPS).

Check the Board Labels: Look for a small white barcode label on the board. The number starting with "AA" (e.g., AA G12345-XXX) is the unique identifier Intel uses for documentation.

Use Software Identification: If the PC is bootable, download a tool like CPU-Z or use the Windows System Information tool (type msinfo32 in the Run box) to see the "BaseBoard Product" field.

Search the Intel Archive: Once you have the model (e.g., DQ67OW), you can find the Intel Technical Product Specifications in their support archive. Driver and Support Resources Intel Desktop Board 21 B6 E1 E2 Driver Download - Facebook

Alternative Support Link (Drivers & BIOS)

For BIOS updates and driver utilities, the historical link was: https://downloadcenter.intel.com/product/39688/Intel-Desktop-Board-DG41RQ

Final Summary

| Your search keyword | Actual meaning | |---------------------|----------------| | intel desktop board 21 b6 e1 e2 | POST error sequence on LGA1155 Intel boards (H61, P67, Q77) | | specification link | Intel ARK or PDF Datasheet for DH61CR / DP67BA / DQ77MK |

Direct action: Identify your board physically (see Part 4), then use the archived specification links in Part 3 to check RAM/CPU compatibility. For the POST error, follow the troubleshooting in Part 5.

These legacy Intel boards are still excellent for Windows 7 retro builds, lightweight Linux servers, or industrial embedded systems – but only if you can decode their cryptic error messages. Now you have the full specification link and the knowledge to fix the 21 b6 e1 e2 puzzle.

Need further help? Leave a comment below (if on original blog) or search the Intel Community forums for your specific board model number after identifying it from the silkscreen.

I searched for the specific query "intel desktop board 21 b6 e1 e2 specification link" , but this string does not match a standard Intel Desktop Board model number.

Intel Desktop Board model numbers are typically formatted like:

D945GCLF
DG41RQ
DB65AL
DH67BL
DQ67SW
DZ77GA-70K

The characters 21 b6 e1 e2 look more like a BIOS version, a service code, or a board printing code (often found near the RAM slots or PCIe slots), not the official product name.

Final Specification Summary Table

If you need the BIOS update file (version 0057 or later), use the official link above. Never download BIOS files from third-party driver sites.

Intel Desktop Board DZ77SL-50KZ Specification

The Intel Desktop Board DZ77SL-50KZ, also known as the Intel Desktop Board 21 B6 E1 E2, is a high-performance motherboard designed for 3rd generation Intel Core processors. This motherboard offers a wide range of features, including USB 3.0, SATA 6Gb/s, and Intel Gigabit Ethernet, making it an excellent choice for gamers, content creators, and businesses.

Key Features

Socket LGA 1155: Supports 3rd generation Intel Core i7, i5, and i3 processors
Intel Z77 Express Chipset: Provides high-performance and low-power consumption
4 DIMM Slots: Supports up to 32GB of DDR3 memory, with speeds of up to 1600MHz
Graphics: Intel HD Graphics, with support for Intel HD Graphics 4000
Expansion Slots: 1 PCIe 3.0 x16, 1 PCIe 2.0 x16 (x4 mode), 2 PCIe 2.0 x1
Storage: 6 SATA 6Gb/s ports, 1 mSATA port
USB: 4 USB 3.0 ports, 8 USB 2.0 ports
LAN: Intel Gigabit Ethernet
Audio: 7.1-channel audio, with support for Intel HD Audio and Dolby TrueHD

Detailed Specifications

Part 1: Decoding “21 B6 E1 E2” – It’s Not a Model Number

First, a crucial clarification: No Intel Desktop Board has the model number “21 B6 E1 E2.”

Instead, this string is almost certainly one of the following:

POST Code Sequence: Common Intel boards (e.g., DH61CR, DP67BA, DQ77MK) use a two-digit hexadecimal POST code display on a built-in LED diagnostic panel. Codes 0x21, 0xB6, 0xE1, 0xE2 appear during memory initialization, chipset configuration, and SMBus setup.
OEM Barcode/Serial Fragment: Some white-box Intel boards shipped to Dell, HP, or Lenovo have labels with alpha-numeric sequences like “21B6E1E2” as a service tag.
BIOS Beep Pattern: Rarely, continuous beeps followed by error codes.

CPU Support (Processor Compatibility)

This board uses an LGA 775 socket. It supports the following processors (check your specific BIOS version for full support):

Intel Core 2 Quad (up to Q9650 – requires BIOS version 0049 or later)
Intel Core 2 Duo (E8000/E7000 series)
Intel Pentium Dual-Core (E5000/E6000 series)
Intel Celeron Dual-Core (E3000 series)
Intel Celeron (400 series)
Front Side Bus: 800/1066/1333 MHz

Option C: Intel Desktop Board DQ77MK (Business/Embedded)

Chipset: Intel Q77 Express
Socket: LGA1155
Max RAM: 32GB DDR3 1600 MHz (4 DIMMs)
Special Features: vPro, AMT 8.0, TPM 1.2, SBA (Small Business Advantage)

Key Specs:

1x SATA 3.0 + 5x SATA 2.0 (plus mSATA)
1x PCIe 3.0 x16, 2x PCIe 2.0 x1, 1x PCI
6x USB 3.0 (2 rear, 4 via header) – rare for this era
Dual DisplayPort + VGA
Intel 82579LM Gigabit LAN (vPro aware)

Blog post — Intel Desktop Board D21B6 / D21E1 / D21E2 specifications (with link)

The Intel Desktop Board D21B6 (also marketed as D21E1 / D21E2 variants) is a compact, socketed motherboard series designed for small-form-factor desktop and embedded systems. It blends stable Intel chipset features with legacy I/O support, making it useful for industrial, thin-client, kiosk, and home-office builds that need long-term availability and reliable onboard interfaces.