@cdolphin: Yes, use Nvflash to flash it from dos. Using the 470 bios could brick you card though, so make sure you have an extra VGA to flash it back.
@Systemlord: Buzzing around the VRM's can mean a lot of things. Anyway, here's a basic guide:
Download GPU-z and dump your bios using the little button beside the "Bios Version" box. Now, download NibiTor. Run it and select "File" then "Open BIOS" and select the BIOS you just dumped.
Now select "Tools" then "Fermi voltage". A new window will pop up. At the very top will be a box that says "Limit". Click that box and set it to whatever you want the max voltage to be.
Here's the important part!!
Make sure you save the bios under a different name now. You want to make sure you have your original bios in case of RMA's. I recommend saving it as "1.ROM".
Now start at Step 3 of this guide,
and instead of "470.ROM" put in your "1.ROM" we created earlier.