Intel Desktop Board 21 B6 E1 E2 Specification Now

This alphanumeric string is a displayed via two diagnostic LEDs (Green and Red) on the board itself. On legacy Intel boards, these LEDs flash in a binary sequence to indicate where the boot process is failing.

: Look for a small barcode sticker on the board. The number usually starts with "AA" followed by six digits and a three-digit suffix (e.g., AA G23116-204). intel desktop board 21 b6 e1 e2 specification