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Pros And Cons OF flashing the Bios on your Video Card

post #1 of 3
Thread Starter 
Can Some one give me some pros and cons of flashing the bios on my video cards i have 2 4850's and i just wanted to know a little more about flashing and what not.
post #2 of 3
Basically it voids any warranty you have. It also can damage the card if you flash it with say a 5850 bios. I have flashed my cards to 5870's and they work great. If you do flash them make sure you back-up your original bios in case you need to revert back. You can save your current bios with GPU-Z. Do your research of what those cards can handle and what others have done.
post #3 of 3
The Pro is that by flashing you may be able to make your card work more like you want it to. The Con is that you may cause it to not work at all.

But you don't just do it randomly, you do it because you know exactly what the benefit it is that you're looking for, and others have laid out the steps for you to attain this benefit through a bios flash.

For example, in the *SPECIFIC* case of my old reference Diamond 5850 cards, I flashed the bios to that of a reference Asus 5870 card, and this caused:
1) The OC limit of 775/1100 imposed by the driver to be removed, because the Asus models had no OC limit whereas my Diamond card did.
2) The 'stock' clocks on the card were raised from 725/1000 to 850/1200
3) The 'stock' voltage was raised slightly, I forget what the numbers were.

However, this is a SPECIFIC case, and I researched and found that the flashing would have these KNOWN benefits before I ever did it. I was interested in these benefits (and I confirmed my card could run at 850/1200 via software OC'ing first) so I proceeded to do the flash.

Although I also could've accomplished all this same stuff simply by using Afterburner, I was pleased that I didn't have to RUN AB in order to have all these benefits ... it made it so my cards ran this way all the time w/o software.

I later ended up modifying the 5870 bios myself using RBE to raise the 'stock' clocks even further, and flashed those onto the card. Again, I researched how to do this before I did it.

In the case of your particular card, I have no idea what you may or may not be able to accomplish via a Bios flash. There may be something cool that can be done, or there may not.
Edited by brettjv - 1/6/11 at 9:51am
    
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CPUMotherboardGraphicsRAM
xeon X5675 6-core @ 4.1ghz (1.29v, 20x205 +ht ) rampage iii extreme msi rx470 gaming X (the $159 budget king) 3 x 2gb corsair xms3 pc12800 (9-9-9-24-1T@1600MHz) 
Hard DriveOptical DriveCoolingOS
hynix 250gb ssd (boot), 2tb deskstar (apps),1tb... plextor px-712sa - still the best optical drive... corsair h8o v2 aio W10 home 
MonitorPowerCaseAudio
asus vw266h 25.5" (1920x1200) abs sl (enermax revolution) * single 70A rail 850w silverstone rv-03 XFi Titanium 
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