Firmware for the ASRock H81M-VG4 desktop motherboard, marked R3.01 in the name, which may refer to the board revision or the BIOS version. The RAR archive is about 2.95 MB. Such an image is typically written to the board's SPI BIOS chip with an external programmer when the board fails to boot after a bad update or shows signs of flash corruption. Check the revision printed on the PCB and the chip capacity before programming, and always read and keep a copy of the original contents so the board-specific data is not lost.
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 →