Intel Desktop Board 21 B6 E1 E2 Specification Jun 2026

When you press the power button, these LEDs flash in a specific sequence. By reading the combination of lights (On/Off), you can determine exactly where the motherboard is hanging during Power-On Self-Test (POST).

Back panel audio jacks (Line-In, Line-Out, Mic-In). Legacy Ports: PS/2 keyboard/mouse combo port. 6. Form Factor Form Factor: MicroATX ( Summary Table Specification Model Intel Desktop Board 21-B6-E1-E2 Chipset Intel H61 Express Chipset Socket LGA 1155 (Sandy Bridge/Ivy Bridge) RAM 2x DDR3 DIMM Slots (Max 16GB) Graphics Integrated Intel HD Graphics + PCIe x16 Slot Storage 4x SATA 3 Gbps Ports Audio Realtek 5.1 Channel Audio LAN Integrated Gigabit Ethernet Ideal Usage Scenarios

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The identifier 21 B6 E1 E2 is not a specific motherboard model name, but rather a regulatory or industry specification marking found on various Intel boards. Despite this, boards with these markings are frequently identified in the secondary market as 2nd Generation Intel Core systems, most notably associated with the General Specifications

| Specification | Description | | --- | --- | | Form Factor | ATX (305mm x 244mm) | | Socket | LGA1200 | | Chipset | Intel B460 | | Supported Processors | 10th and 11th Gen Intel Core processors | | Memory | 4 x DDR4 DIMM slots, up to 128GB | | Memory Speed | Up to 3200MHz | | Expansion Slots | 1 x PCIe 3.0 x16, 2 x PCIe 3.0 x1 | | Storage | 6 x SATA 6Gb/s, 1 x M.2 SATA 6Gb/s | | USB Ports | 2 x USB 3.2 Gen 1 (front), 4 x USB 3.2 Gen 1 (rear), 2 x USB 2.0 (rear) | | Graphics | Intel UHD Graphics (integrated) | | Audio | 7.1-channel audio with ALC1220-VB codec | | LAN | Intel I219-V Gigabit Ethernet controller | | WLAN | Intel Wi-Fi 6 AX201 (optional) | intel desktop board 21 b6 e1 e2 specification

Below is a concise, structured summary of the Intel Desktop Board models D21B6, D21E1, and D21E2 (often part of Intel’s older D21xx family). These boards are low-power embedded/desktop boards built around Intel Atom CPUs and targeted at thin clients, POS, and embedded applications.

The string (often preceded by a forward slash as /21 B6 E1 E2 ) is not an official commercial model number. Instead, it is a regulatory, industry specification, or manufacturing silk-screen marking found stamped onto various generations of Intel-manufactured desktop motherboards. When you press the power button, these LEDs

While the combined “21 B6 E1 E2” string is not a model number, the E1 and E2 do have specific meanings. In the context of Intel Desktop Boards, these are Port 80h POST (Power-On Self-Test) codes .

On a whim, he entered into his hex editor, pairing each pair as bytes. He burned the resulting binary to an EPROM and swapped it into the board's empty firmware socket. Legacy Ports: PS/2 keyboard/mouse combo port

Here are some of the key specifications of the Intel Desktop Board 21 B6 E1 E2:

Then the package arrived.