BIOS archive for the ASUS H310M-PLUS GAMING/BR desktop motherboard, revision 2.0, which the name reports as tested OK. The 9.53 MB RAR should hold the flash image for the board's SPI chip. Extract it and compare the image size with the chip's capacity, and read and save the existing contents with a programmer before writing, since board-specific data such as the MAC address and serial is stored there. Confirm the revision on the PCB matches.
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 →