Hey, I spent a while gather info on how to flash my 9800pro. Theres a couple of things if anyone out there want's to try it.. First off-Only perform this if you have an R360 core! It will work on an R350, just there is no performance benefit and some of the shading, etc won't work properly due to the core differences. I also strongly recommend an upgrade in cooling, as flashing the BIOS increases the card voltage, this will be the reason for artifacts kicking in at lower clocks if you are using the stock HSF. Want to know how to tell if you have an R360 core? Remove the heatsink covering your GPU, carefully wipe the thermal paste off the core. You will either see "R350" or "R360". R360 cores usually have black heatsink attachments insted of gold, and Hynix memory is also a pretty good sign. Ignore what ATI tool says, as it said i had an R350 core, which i checked manually, and it turned out to be an R360. Got yourself an R360 core? Good, lets continue. Next you need to check your card will run at XT stock clocks. There is a variety of tools for overclocking your GPU. ATI Tool, Rivatuner and Radlinker all do a great job. What you are aiming for is a 412MHz core clock speed and a 365MHz memory clock speed. Once you have installed your overclocking program (google...) set your card to these clock speeds. You should then run a good 3dmark01/03 and have yourself a nice gaming session to be sure it's stable and artifact free at these speeds. If you have a R360 core r9800np/pro that copes with the clocks, go ahead! Next, your gonna need to find a BIOS with the same type and amount of memory as your card. E.g. Do NOT flash a 128mb pro card with an XT 256mb BIOS. Yes, they do make 9800XTs with 128mb of memory, there just not too available. The card manufacturer isn't too important, just the memory. Ok. What you need to do now is prepare a boot floppy. If you've forgotten how to do this, download this file, it will create the boot floppy for you. The next thing you will need to do is copy the BIOS flashing applications. Download all thee apps in this folder, and copy them onto the boot floppy you should have made. Once this has all been done you will need to put on the BIOS you will be flashing to onto the floppy. I have made a collection of some of the more hard to find 128mb XT BIOSes here. They are all pretty much the same, most are for Samsung memory, i have also got samsung e-die there. As i know a lot of people here will have recently bought Sapphire 9800pros, i have included a BIOS that uses Hynix RAM, which the Sapphire is currently shipping with. I have only tested the Hynix BIOS personally, but have had others with results from the Samsung BIOSes. Ok, so download the appropriate BIOS for your memory (or if you have a 256mb card, use google and download one!), you should then rename this to "9800xt.bin" as DOS can get in a state with the longer names, and plus it's easier to remember. Copy this "9800xt.bin" file onto your bootable disc with the flashing apps. This is all the prep work done. You now have all you need to flash your card. But before you reboot and flash that BIOS you need to know a few commands. Set floppy as the primary boot option. Once you have booted the floppy you should be presented with an "A:\" prompt. At this point you should BACK UP YOUR EXISTING BIOS. If the BIOS flash goes wrong for some reason you will need to reflash it with the original BIOS, better be safe than sorry, etc. The command you need is "flashrom -s 0 9800pro.bin" This will copy your cards current BIOS to the floppy, and name the file 9800pro.bin. Note that it is zero "0" rather than "o". Once you have backed up your BIOS you are ready to overwrite it with the XT BIOS. The command to do this is "flashrom -f -p 0 9800xt.bin". The -f forces the BIOS to flash, as the card may not accept BIOSes from other manufacturers by default. It should then display "6xxx 6xxx" on the screen. Once the "A:\" prompt is returned, reboot the PC. If all goes well, the new BIOS has been written and your ready to roll. I found that i had to boot the computer in VGA mode to get the display to appear. Press "F8" during boot up and select "VGA mode". You should then log in as normal, at low res. settings. You will probably need to reinstall your drivers if there is any trouble with windows plug and play recognition. Gawp at your "XT" card, and have a laugh. Pretty cool, huh? Here's some results.... Before flash: After flash: Spot the difference? Also note how ATI tool reads it as an R350 core with the pro BIOS, and R360 when XT. I found a slight increase in 3dmark03 at the same clock speeds. I haven't done too much benching, as I'm waiting to install my Artic cooler to try some real overclocking, but everything works fine with no artifacts or other errors. Hope that was of help to anyone.