Intel Desktop Board 01 21 B6 E1 E2 Er [new] -

Intel’s official POST code list for boards like the Intel DQ67SW includes E1 and E2 as final halt codes when BIOS detects a fatal error (e.g., incompatible CPU, corrupted BIOS, missing VGA).

Because this identifier appears on multiple board variants, specifications can vary depending on the specific model (e.g., G23116-204 intel desktop board 01 21 b6 e1 e2 er