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