Dell OptiPlex 3060 desktop BIOS dump in BIN format, marked OK as working, for board 17539-1, archived as 13.3 MB RAR. Numbers in the 17539-1 style follow the Wistron pattern, the ODM behind many Dell boards. Technicians program such an image into the SPI chip with an external programmer to restore a board stuck on no-post or a corrupted update. Confirm the 17539-1 marking on the PCB, back up the original chip with its service tag data, and check that the image matches the flash size.
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 @afsbiosfree. 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 →