BIOS backup for the Dell OptiPlex 790 in minitower form, reported as tested and archived as a 4.83 MB RAR file. No board revision is stated, so check the system board against the model and form factor, because the OptiPlex 790 also came in other chassis with different boards. The dump is meant for direct SPI programming when the desktop shows no video or loops at power-on. Read and save the existing chip first, confirm the image length equals the flash capacity, and verify after writing to rule out bad clip contact.
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 @generalbios. Enginerys does not host this file.
How to open a .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →