BIOS file for a Dell 3300 laptop, project DW30, UMA graphics build (integrated graphics only), on Wistron board 09902-1 with the HM57 chipset. The 09902-x numbering corresponds to Wistron, the ODM. The rar is about 1.91 MB, so check the extracted image size against the flash chip on the board before writing. Technicians flash such dumps with an SPI programmer to revive a board with corrupted firmware. Save the original contents first, and make sure your unit is the UMA version rather than one with discrete graphics.
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 →