Firmware archive labelled MCP6PB M2+, a 433 KB RAR. The name gives no brand; MCP6PB appears to be a board model and M2+ likely refers to the AM2+ socket, but nothing else is stated, so confirm against the marking on your motherboard. Desktop BIOS images are typically reflashed onto the SPI or LPC flash chip with a hardware programmer when the board fails to boot. Back up the existing chip, compare the file size with the chip capacity and verify the write before reinstalling the board.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @biosarchive. Enginerys does not host this file.
How to open a .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →