BIOS for the ESONIC H61DA1 desktop motherboard, built on the Intel H61 chipset. The name states a Winbond W25Q32V flash with a capacity of 4 MB, and the 2.53 MB archive should extract to an image of that size. Technicians use it to revive a board that no longer posts after a corrupted or failed BIOS update. Before writing it with an SPI programmer, read and keep the original chip contents, check the board model, and confirm that the extracted file is exactly 4 MB.
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 @biositechyangiyer. 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 →