Dell OptiPlex 7040 firmware dump set for a board that uses two flash chips, a 4 MB and an 8 MB part, archived as a 6.00 MB ZIP. The name gives no BIOS version or revision. Each image must be written to the chip of matching capacity, so identify both chips on the board and dump them before flashing with an SPI programmer. The original reads are worth keeping, since they hold the machine's own service data. Use the separate 16 MB image if your board has a single chip.
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 →