BIOS package for the Dell Latitude E4310, marked for the Core i7 version and referring to U12 and U13, likely the board positions of the flash chips. The RAR is 1.99 MB. If it holds separate images per chip, write each one to its own position with an SPI programmer. Read and save the original contents of both chips, check the CPU variant on your board, and confirm each file matches its 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 @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 →