BIOS firmware for the Gigabyte GA-B85M-HD3-A desktop motherboard, PCB revision 1.0, compressed into a 5.51 MB RAR archive. The B85 in the model refers to the Intel B85 chipset used by this microATX board. A dump like this is used to recover a board with corrupted firmware by writing the SPI flash with an external programmer such as a CH341A. Read and save the original chip contents first, verify the chip capacity matches the image size, and make sure the board revision is 1.0.
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 →