Firmware archive for the Gigabyte GA-Z77X-D3H desktop motherboard, board revision 1.1, compressed as a 3.57 MB RAR. The Z77 chipset places it on the Intel LGA1155 platform for Sandy Bridge and Ivy Bridge processors. Gigabyte boards of this series often carry dual BIOS chips, so a technician may need to identify which chip is being reprogrammed. Use a programmer such as a CH341A to back up the existing contents first, and make sure the board revision silkscreened near the PCIe slots really reads 1.1, since 1.0 images may differ.
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 →