BIOS image set for the Gigabyte GA-Z77X-D3H at PCB revision 1.0, delivered as a 3.69 MB RAR archive. This Intel Z77 chipset board supports LGA1155 processors, and Gigabyte typically fitted it with a main and a backup BIOS chip under its DualBIOS scheme. Technicians use such files to recover a board stuck in a boot loop or with a corrupted flash by writing it directly with an SPI programmer. Keep a backup of the original read, compare chip capacity with the image, and confirm the revision on the board is 1.0 rather than 1.1.
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 →