The string refers to an older, often industrial-grade Intel Desktop Board , specifically the Intel DB85FL Go to product viewer dialog for this item.
Code e1 means the BIOS is attempting to execute a pre-saved script to restore hardware to its previous state. Code e2 means it's reinitializing the video system. This suggests the system was trying to wake from a sleep state (like S3 Sleep) when the error occurred, rather than a "cold" boot from a powered-off state.
The error string "intel desktop board 01 21 b6 e1 e2 er" is not a model number but a diagnostic sequence revealing a memory‑related POST failure, most likely E1 (no memory detected) or E2 (memory type mismatch). By following the systematic troubleshooting steps above, you should be able to identify the underlying issue and restore normal system operation.