ajokz -
A few things you should know before you try to do any flashing of your bios, it's relitively easy to understand, even I got it and I've only been here for 3 days!
First things first, after you've got the boot disk with flashrom unzipped onto it, use it to boot into DOS and then use the command 'flashrom -s 0 oldbios.bin'. That will save your current bios as the file 'oldbios.bin' on the floppy disk, so that you can put it back and set everything to normal if anything goes wrong.
After you've got that done, you need to find a bios on the bios database that will work with your card. The database is found
here.
To find out what kind of BIOS you can use, you'l need to find out what kind of memory is used on your card. So, open up your PC (with it turned off and un plugged ofcourse) and look at the part number code that is printed on the memory chips. When you've got that copied down, go to
this page and match up the code you've got written down with the codes in the list to find out what memory it has; make note of the manufacturer, the size, and the speed.
Now go back to the BIOS page and look for a BIOS that says '9600' (it doesn't neccisarily have to be the PRO version, you can also use the non-pro version, as they all use the same core). Make sure that in the '9600' BIOS that you use, it's clock and RAMDAC speeds are at what your card can handle, these are the numbers separated by a / (if you want any more info on that ask).
Also make sure that the memory make it says below these numbers is the same as what you've found out is on the chip, otherwise they won't be compatible, and that the speed it says for the memory is also the same.
Finally, the memory it says in the title of the bios has to be the same as the amount of memory you have on the card. You can see how much there is from the memory type table.
NOW MAKE SURE YOU'VE PUT THE CARD BACK INTO THE AGP SLOT
When you've found your BIOS, download it and save it as '9600.bin'. Then put it onto your boot disk, and reboot the PC with the disk in the drive. Then when you're at the command prompt, type 'flashrom -f -p 0 9600.bin' to force flash the bios. If this then works and you can then progress to overclocking, if it doesn't, then just reboot again with the boot disk, type in 'flashrom -f -p 0 oldbios.bin' to restore your old bios, and then do some more rooting around in the BIOS database until you find one that works.
For information about overclocking, visit
here and it'll tell you everything you need to know.
Hope this helps