Question 8 Pin + 4 Pin ATX 12v EPS with a PSU with only 8 pin ?

Dec 4, 2018
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Im deciding to get the B450 Tomahawk which only has an 8 pin eps or b450 gaming pro carbon which has 8 pin and a 4 pin eps and im worried whether an 8 pin only would work and will i be able to use the better VRMs on the carbon with better performance than the ones on the tomahawk without using the 4 pin (trying to OC Ryzen 5 1600 from 3.2 to 3.7-3.9)