Quote Originally Posted by Husar
Concerning the boot disk, I've had one years ago when I was still playing DOS games, but how exactly would a disk save me if the BIOS doesn't work anyway? Or does upgrading overwrite only parts of the BIOS?
Well if you flash with the wrong BIOS there is pretty much nothing that can help you. If something else goes wrong, for example you can't get something to work or some settings get mucked up. You can stick the boot disk in and boot from that and restore the old BIOS.