Tested BIOS dump for the Dell Vostro 15 3510, stated as a 16MB image and marked OK, packed in a RAR of about 8.1 MB. No board number or revision appears in the name, so identify the mainboard from its PCB silkscreen before using it. A full dump like this lets you recover a board with corrupted firmware by writing the SPI chip with a programmer. Save the original contents first, since they hold the service tag, and check that the unpacked image size matches the 16 MB chip.
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 →