If you still have the board, try the BIOS recovery method. Otherwise, consider these legacy boards irreparable beyond basic CMOS resets and RAM swaps.
Users frequently associate this code with the or similar H61 Express Chipset boards. Identified Motherboard Details intel desktop board 01 21 b6 e1 e2 er
This board is a motherboard designed for business and general-purpose computing. Socket Type: LGA 1150. Chipset: Intel B85 Express. Memory Support: Supports DDR3 SDRAM . If you still have the board, try the BIOS recovery method
You can typically find them priced between $15 and $50 USD , depending on the condition and if they include a CPU or RAM. If you still have the board
Intel Intel Desktop Board /21 B6 E1 E2 21 B6 E1 E2 60Days Warranty