Firmware archive for the ASUS B85-PLUS motherboard, board revision R2.0, with R1.00 also appearing in the name, possibly a BIOS or sub-revision label. The 4.60 MB RAR holds BIOS data for this Intel B85 chipset desktop board. Repairers write such images to the SPI flash chip to recover boards with a dead or damaged BIOS. Extract and inspect the contents before flashing, compare the image size to the installed chip, check the PCB revision marking, and back up the original dump so it can be restored if needed.
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 →