BIOS image for the Gigabyte GA-P85-D3 desktop motherboard, revision 2.0, sized for an 8MB flash chip and packed in a RAR archive. It is meant for recovering a board that no longer posts after a failed update or a corrupted SPI chip. Gigabyte prints the revision on the PCB near the slots, and it should match before you write the image. Read and keep a copy of the existing chip first. Check that the extracted file is exactly 8MB so it fits the chip, then program it with a CH341A or similar SPI programmer.
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 →