Working BIOS for the Dell Vostro 3888 desktop on Wistron board 18463-2, labelled D10 Entry, which appears to name the board variant. The RAR archive is about 8.41 MB. Wistron is the ODM that uses the five-digit number with a dash revision. The dump is used to reprogram the SPI flash with an external programmer when the system will not POST because of corrupted firmware. Read and keep the original chip first, check the image size against the chip capacity, and match the board number and revision.
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 →