Dell OptiPlex 780 BIOS archive referencing board E93839 and version code GA0403, with images for both 8 MB and 4 MB flash configurations, in a 5.99 MB RAR. Having both sizes helps since boards may carry different capacity chips. Use an SPI programmer to write the matching image after reading and saving the current chip. Check the chip marking first, because an image that does not match the flash size will not fit or will fail verification.
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.
All sources (2)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @biosarchive | 22 Nov 2022 | Open file on RM Schematics |
| @anztechnology | 11 Oct 2025 | Open file on RM Schematics |
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 →