I'm trying to over clock my gpu. I'm getting 1200 MHz on 1.18V .Using afterburner, I'm trying to go higher but my voltage isn't bulging. Gpu-Z reads it as "1.2V " and Afterburner again reads it as 1.18V . I don't know what I can do. I have my core voltage setting as ~+56 and my power limit setting as +12 .