Archive for the ASUS TUF Gaming FX505DY on the AMD platform, labelled 308, which likely refers to BIOS version 308, though the name does not state its exact contents. At 5.12 MB it probably contains a BIOS image or update file. Check the files after extracting, and before programming an SPI chip back up the original dump and verify that the image size matches the flash capacity. A stock BIOS may need serial and system data restored.
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 @vinafix_bios. 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.
7-ZipWinRARThe Unarchiver (macOS)