BIOS firmware for the Dell OptiPlex 7020 in its mini-tower form, with E93839 as the board identifier and AMO426 as an additional code from the name, perhaps a revision or version tag. The 7.21 MB ZIP should contain an image for reprogramming the desktop's SPI flash. Dell firmware regions store the service tag and system data, so save a full read of the original chip before writing anything. Confirm the board marking and chip capacity match the image.
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 | 26 Jul 2021 | Open file on RM Schematics |
| @bios_laptopomi | 19 Jan 2023 | Open file on RM Schematics |
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 →