BIOS archive for the Intel DH61AG motherboard, labelled tested and working, 2.53 MB as RAR. This Intel H61 chipset desktop board supports second and third generation Core processors. Technicians write such an image to the onboard SPI flash with a programmer to revive a board stuck on a black screen or failing after an interrupted update. The similarly named DH61AGL is a different model, so confirm the exact board name on the PCB. Read and store the original chip data and check the size before flashing.
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 @hrtechno. 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.