Use VBEeditor and change it yourself.
Lower the voltage until its no longer stable.
I have already tried that, however figured first I need to export current bios so I used GPU-Z.
Windows 7 64bit
Open GPU-Z and exporting bios:
http://prntscr.com/cd0s1pBut when I try to open this bios in VBE I got this:
http://prnt.sc/cd0r5nTried also PolarisBiosEditor:
http://prntscr.com/cd0u2kThe file is somehow incompatible how to fix it? Or there is some other way for exporting?
thx in advance for help
Try using atiflash instead. You can download it from Techpowerup.
Then run
atiflash -s 0 vaporxorig.rom <- saves original ROM to that file, assuming your gpu is the first pcie device.
The you should be able to open that file in vbe, mod it and save it to a different file.
Assuming you saved the modded BIOS to vaporxmod.rom, you can flash the card thus:
atiflash -p 0 vaporxmod.rom
You may want have to add -f to the above command if it fails.
Then reboot the computer and you are ready to test your card.