Raw binary for the Acer 5740, only 128 KB in size, which is far too small for a main BIOS and more likely an EC firmware image or a small flash dump. The name gives no board number or revision. An EC image controls power-on, charging and keyboard, and a bad one can stop the laptop from starting. Identify the target chip on the board before writing with a programmer, and read and keep the original contents first.
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 @ComputerBIOSBinFile. 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 →