BIOS firmware labelled H55 HD, a 1.12 MB zip; the name suggests an Intel H55 chipset board, but no manufacturer, model code or revision is given, so the archive contents should be checked before use. Images of this era are typically flashed onto the board's SPI chip with an external programmer to recover from a failed update or corrupted firmware. Because many different H55 boards exist, compare any identifier inside the dump with the markings on the PCB, back up the original chip, and verify that the image size fits the flash.
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 @Laptopdesktopbios. Enginerys does not host this file.
How to open a .zip file
Compressed archive that every operating system opens without extra software.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →