RAR archive with BIOS and EC firmware for the Dell OptiPlex 790, board identifiers E93839 and KA0120. Having both the main BIOS and the embedded controller code together is useful when a desktop shows power or fan faults that a BIOS-only reflash does not cure. Images are written with an SPI programmer to the respective chips. Identify which file belongs to which chip by size, back up every chip before writing, and confirm the board markings on the PCB correspond to those stated here.
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 .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 →