The Intel Desktop Boards associated with the manufacturing codes "21 B6 E1 E2" belong to the performance mainstream segment, designed to support the 2nd and 3rd Generation Intel Core processors (Sandy Bridge and Ivy Bridge microarchitectures). These boards utilize the Intel H67 or B65 Express Chipset, providing a balance of performance, connectivity, and integrated graphics output.
| Code Fragment | Likely Meaning | Common Location on Intel Boards | | --- | --- | --- | | | PCB layer or assembly plant code (e.g., Foxconn or Flextronics plant 21) | Edge of board near mounting hole | | B6 | Voltage regulator phase or power IC identifier (e.g., Intersil ISL63 B6 ) | Near CPU VRM area | | E1 / E2 | Stepping or bridge revision (e.g., Cougar Point E1 step for Q67/B65 chipsets) | Southbridge chip surface | intel desktop board 21 b6 e1 e2 specification exclusive
The string found on Intel motherboards is a regulatory marking , not the actual model number. It is often printed near other codes like "E210882" or "N232," which are also generic industry specification marks. The Intel Desktop Boards associated with the manufacturing
The Intel® Desktop Board DG31GL offered a reliable and cost-effective entry point into the LGA775 ecosystem. While obsolete for modern high-performance computing, its integrated Intel GMA 3100 graphics and support for Intel Core 2 Quad processors made it a competent performer for its time in general office work and web browsing. It is often printed near other codes like
Based on technical details for boards commonly bearing this identifier, here is the feature specification: Socket Type: LGA 1155 (Socket H2) .
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.
: Typically features at least one PCIe x16 slot for dedicated graphics.