HP ProBook 4540s motherboard BIOS in a ZIP archive of about 3.59 MB, labelled with the Rocky design name and Intel platform, and associated with Wistron board 11243-1. Wistron uses a five-digit number with a dash suffix for its boards. The image is meant for restoring the SPI flash with an external programmer on a unit with corrupt firmware. The 4540s was produced on more than one board, so check the number on your PCB, save the original chip and confirm the 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 @biosarchive. 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 →