BIOS image archive for the ASRock H91M-XT Plus motherboard, revision 1.00, in a 2.93 MB ZIP. The name gives no version or chip detail, so open the archive to see whether it holds a raw dump or a vendor update file. Raw dumps are written to the SPI flash with a programmer when the board will not POST or a failed update has left it dead. Make sure the PCB revision printed on the board matches 1.00, and back up the original chip before writing anything.
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 →