BIOS image in ROM format, 2.00 MB, whose name points to model A840 with revision tag A04, a version style typical of Dell releases, though the brand is not stated in the name. Technicians use such an image to reflash the SPI BIOS chip with an external programmer when the board is dead, stuck on a black screen or corrupted after a failed update. Read and save the original chip contents first, confirm the model and board match the target machine, and check that the 2 MB size equals the capacity of the flash chip fitted on the board.
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 @bios_laptop. Enginerys does not host this file.
How to open a .rom file
A BIOS image as shipped by the vendor (commonly AMI) — often the BIOS region only, without descriptor or ME.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →