BIOS dump for the Dell OptiPlex 5055, the Ryzen CPU desktop variant, labelled as a working image confirmed fully functional. It comes in a RAR archive of about 5.8 MB to be extracted before use. A file like this is typically written to the motherboard SPI flash with a programmer such as a CH341A when the firmware is corrupt or the system will not post. Read and keep the original chip contents first, check the image size against the flash capacity, and expect to re-enter the service tag afterwards.
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 (3)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @biosarchive | 4 Nov 2023 | Open file on RM Schematics |
| @generalbios | 3 Dec 2023 | Open file on RM Schematics |
| @generalbios | 4 Nov 2024 | 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 →