hello, svl7! i'm using your vbios and tested several times.. it works great.. successfully unlocked and can access power limits and voltage control. but sometimes directx 11 stop responding while playing the games. and suddenly nvidia driver stopped and recovered. just for me, i can't even start 3dmark tests because of the erros (some buffer and device error they said) . this pheonomenon occurs many times and my colleagues experienced same even they didn't set graphic card to overclock (didn't change the clocks, power limit and etc.. with only bios default setting) . it is kinda unstable right now. i newly installed nvidia drivers(344.xx drivers) and directx just in case, but same.. when i get back to my backup vbios, it goes well, and same for my colleagues. is there anyone experince same like me and my friends? by the way, i'm always appreciate your work svl7! i'm here just give feedback to make it better:distracted:. thank you very much for reading!