A second 4525ac BIOS image, marked (2), 2 MB in raw binary form. As with the first file, the meaning of ac is unclear, and the name holds no board number, revision or version data. Duplicate reads help confirm that a dump was taken cleanly before it is used as a recovery source. It fits a 16 Mbit SPI chip that is programmed off the board or in circuit. Save the original chip contents first, then erase, write and verify, after matching the motherboard to the source machine.
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 @biosfilebins. 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 →