BIOS dump for the Dell OptiPlex 3070 Tower, platform name Cougar MLK MT, with the board reference 17539-3 and a 32 MB flash image, delivered as a 16.2 MB RAR archive. Desktop technicians use such a dump to recover a board stuck with no POST or a corrupted BIOS by reprogramming the SPI chip with an external programmer. Save the current chip contents first, since service tag and system data live there. Confirm the chip on the board is a 32 MB part and that the board reference matches before flashing.
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 →