BIOS for the ASUS P8H61-M LX3 desktop motherboard, revision R2.0, in a 3.81 MB RAR archive. The board is built on the Intel H61 chipset, as the model name indicates. Revision matters because firmware for different PCB revisions may differ, so check the marking printed near the slots. If the archive holds a raw dump, flash it to the SPI chip with a programmer after reading and keeping the original, and make sure the image size matches the chip, otherwise it will not fit.
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 →