BIOS file for the Intel D946GZIS desktop board, a 512 KB raw binary with no version stated in the name. The capacity points to a 4 Mbit flash chip. Repair technicians write a dump like this with a hardware programmer to restore a board whose firmware has been corrupted. Make sure the board model on the PCB matches, read and save the existing chip first, and confirm the chip size equals the image before writing.
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 .bin file
A raw, byte-for-byte image of a flash chip: the main BIOS / UEFI, the embedded-controller (EC) firmware, or both.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →