Desktop motherboard BIOS labelled B85M-V-PLUS with an SI suffix, in a ZIP of about 5 MB. The name points to a B85M-V Plus board but does not name the manufacturer, the version or the meaning of SI, so check the extracted image. Firmware like this is used to recover a board that fails to post after a corrupted update by reprogramming its SPI chip with an external programmer. Back up the existing contents first, and confirm the image matches the chip size.
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 .zip file
Compressed archive that every operating system opens without extra software.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →