Intel Desktop Board 21 B6 E1 E2 Manual |link|

To find the correct manual, you must identify the motherboard's (Altered Assembly) or model name.

The model number is often displayed during the initial boot-up sequence. Typical Specifications for "/21-B6-E1-E2" Boards Intel Desktop Board 21 B6 E1 E2 Manual

: Sites like The Retro Web host archived PDF manuals for discontinued Intel boards. Troubleshooting "Solid POST" Issues To find the correct manual, you must identify

The Intel manual defines these beeps (generated by BIOS vendor AMI or Intel proprietary): To find the correct manual

, which is usually found on a small barcode label on the board. How to Identify Your Board Model Check for the AA Number