BIOS for the Dell 1440 with Intel GM45 chipset on Wistron board 08265-1, supplied as a 1.59 MB RAR. A dump like this restores the SPI flash when the laptop powers on without display or the firmware is corrupted. Wistron designed the board, and its five-digit dash-number is printed on the PCB. Program it with an external tool, but first read and keep the existing chip contents and make sure the image size matches the flash chip before writing.
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 →