Wistron-built DL340 board firmware for the Haswell (HSW) platform. The board number is 13221-1 with the code WVPHP, revision A00. Wistron identifies its boards with a five-digit number plus a dash suffix, often followed by a separate alphanumeric code, and many such boards ended up in Dell notebooks. The 4.55 MB RAR should be unpacked and the image checked against the SPI chip size before programming. Read and save the existing chip first, and confirm the 13221-1 marking 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 →