BIOS image for the Dell Vostro 3300 on Wistron mainboard 09902-1, which the name says was tested by FST FIX. Wistron numbers its Dell projects with five digits and a revision suffix, as in this case. The compact 1.80 MB RAR archive is meant for restoring the SPI flash with a hardware programmer. Make sure the PCB marking matches and save a read of the original chip first. Then check that the extracted image size exactly equals the chip capacity.
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 @generalbios. 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 →