Critical note : Do not attempt to install a 130W Pentium Extreme Edition. The board’s MOSFETs lack heatsinks and will overheat within minutes.
If you own a board with these markings, treat it as a piece of computing history—but also as a functional tool for specific legacy tasks. Archive its BIOS, replace the caps, and it will likely run for another decade. Intel Desktop Board 21 B6 E1 E2 Specification
The Intel Desktop Board D21 B6 E1 E2 offers several benefits, making it an attractive option for users: Critical note : Do not attempt to install