Use the attached.
Decompress the provided .rar archive with Winrar: http://www.rarlab.com/download.htm
Then flash the included file with Nvflash for dos: http://www.guru3d.com/files_details/nvflash_download.html
To do so rename the included file to .rom and create a dos bootstick (https://forum-en.msi.com/index.php?threads/165175)
Put nvflash and the vbios file on it and boot from the stick. Then type nvflash -4 -5 -6 gop.rom (if renamed vbios that way) and hit enter. Confirm the questions and let the tool flash.