Have you tried anything on that guide? First thing I would try is MSI AFterburner and disable the voltage locks. Try starting here... Advanced GK110 OC guide: Spoiler! and click to expand. Well I will not be trying the 100Ohm resistor for several years then. LOL. 1.5v is a ton to pump through the card. I'm curious why they sticked all that info on 1.3v with PLL hack if it doesn't really work. 1.212 will have to suffice for the time being. good info!