Firmware package for the H61M-P20 motherboard, marked G3 in the name, which most likely denotes a board generation or revision; the H61 code points to the Intel H61 chipset. The zip is 2.96 MB and probably contains a full SPI image. Technicians write such dumps to the BIOS chip with a programmer to repair boards that power on without display. Make sure the G3 variant matches the marking on your PCB, since other versions may use different layouts, back up the original chip, and confirm the image fits the flash size.
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 @Laptopdesktopbios. Enginerys does not host this file.
How to open a .zip file
Compressed archive that every operating system opens without extra software.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →