MasterJakobo :
You should raise llc(load line calibration) to lvl 3 or 4(asus is high or ultra high) it will reduce the gap between bios Voltage and Cpu-z reading and also put asus phase control to optimized.
I would try with a negatiive offset "-" 0.05 v and decrease rinse and repeat it until you get the lowest voltage and stable with intel burn test at maximum for 5 run when your set test it again but for 30 run with core temp to monitor heat and cpu-z for voltage.
Well, I listened to you about the LLC, I raised the LLC to Lvl 3 using AISuite 2, but I've found that on load now, the voltage goes up to 1.21V. When I set the LLC to regular, the voltage goes to 1.168V on load. When overclocking, don'y you have to try and get the highest clock with the lowest voltage? Oh and I set the phase control to optimized, but I didnt change the offset value, I left that at automatic.
EDIT: I've set the multiplier to 43x in the bios with a BCLK of 100MHz so I'm at 4.3GHz, when I ran Prime95 (Small FFT) afterwards, my voltage shot up to 1.32v and temps went up to about 68Celsius. However, using TurboV EVO, I managed to lower the CPU voltage reading in CPU-Z to 1.168v without BSOD's, so is that good? Temps on load are now: 54, 54, 55, 59 (degrees Celsius). So does anyone think it would be safe for me to clock the CPU higher? up to 4.5GHz?