EVGA 100-EV-EB01 - Manual (Page 19)

In the sub-menu, you will see 4 different Voltage Adjustments, VCore for the GPU Core, VPLL for the PLL Clock Generator
on the GPU, VDD for GPU Memory and VDDQ for the GPU Memory.
To adjust any one of the voltages, press OK to enter into it.
In the example I want to adjust VPLL and upon entering, I see that the current voltage is 1.15v.
I press Up to scroll up to 1.27v and hit OK. A confirmation message pops up and I press OK again to confirm or C to
cancel.