Checked it on hwinfo64... you were right. it says 1.131v. So, how do i lower that on bios? There should be something i did completely wrong...
The undervolt you actually made is just the floor voltage for core.
Actual core voltage hovers between voltage values indicated on p7 core and p2/p3 mem. Use overdriventool disable all states except p7 and p2/p3 mem (highest) and set the voltage 925mV in p7 and 900mV in p2/p3 mem. Check actual voltages while mining you should be hovering in between these two values.
If you undervolt too much you might just crash or drivers won't honor it
Best way so far.
OverdriveNTool is my personal preferred way to undervolting.