BIOS firmware archive for the ASUS P8H61-M LX3 PLUS desktop motherboard, revision R2.0 as stated in the name. The 3.73 MB RAR should hold an image for the board's SPI flash chip. Technicians use a dump like this to recover a board that will not POST after a failed update or a corrupted chip, writing it with a CH341A or similar programmer. Read and save the original chip contents first. Check that the revision printed on the PCB matches R2.0, and that the image size equals the flash capacity before programming.
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 →