BIOS package for the Dell Vostro 3300, project DW30, discrete-graphics motherboard on Wistron board 09288-1. DIS indicates the version with a dedicated GPU, so it should not be flashed to the integrated-graphics board. The RAR archive is about 6.29 MB and may contain more than one image or region. A technician writes it to the SPI flash with a programmer to recover a board with bad firmware. Back up the existing contents first, confirm the image size fits the chip, and match the board number on the PCB.
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 →