yes but it only has information about what fixed in each version of bios and other pdf is also about ways how to update bios.
let me describe my situation:
I have a Intel DQ67SW motherboard that is not working, when I connected and turned on PSU CPU fan started to spinning for few seconds, and stopped.
So I suspected that bios is corrupted and removed bios chip, and programmed it again using TNM. But I used .bio file from intel website above, and when I turn on PSU it starts spinning for few seconds, stops and spin again and it continues this way.
The change here is that it continue spinning and stops and spin again, while at first it just stopped for ever.
Now I see I had to use .bin file to flash bios not the .bio, so I'm asking for .bin bios file.
Also note that I have another DQ67SW motherboard which is working well, is that possible I somehow backup it's bios as .bin and use it on broken motherboard? I couldn't find any way though to do that.