You need an empty, working (preferably new) floppy disk.
Insert the floppy, right click floppy drive in windows and select "format".
After the format, right click floppy drive again and select "make system disk". It will make you a dos boot disk.
Copy the flashrom OR atiflash utility to the created system disk. Also copy the new bios (bios.bin) the floppy.
Leave the disk in and reboot. You will get dos screen, where you can put in the commands (do the flashing part).
NOTE: Additional precaution procedure: You will need ANOTHER floppy disk.
I strongly recomend doing the following:
When you first go to dos using the floppy, backup your current bios, the one in the card at the moment. The command to that is also found in the general flash guide, it´s the same command I think but "-s" instead "-p". Check the guide. It will write you current bios on the floppy. DO NOT flash yet, remove floppy and go to windows again.
When in windows again, make A NEW boot disk like before, using ANOTHER floppy disk. Then copy your OLD bios (which is on the another floppy at the moment..) and the flashing utility on this floppy. RENAME the OLD bios file you copied to "oldbios.bin". Open the A:\ drive (floppy) and select "tools -> folder options" at the top of the screen. Find "view" tab, and UNTICK the option "hide protected system files".
You should now see "autoexec.bat" file on the floppy. Right click it and select "edit". In my case, there wasn´t any text. What ever the case, write a NEW line saying:
flashrom -f -p 0 oldbios.bin
Nothing else.
Save and exit.
Now when ever you insert that disk and boot, IT WILL FLASH YOUR ---OLD--- BIOS TO THE GRAPHICS CARD. You should never need it, but if something goes wrong and you get the black screen of death, you should be able to insert this disk, boot, wait until floppy drive stops doing anything and boot again and have everything working again.
