see if the mosfets are hot, and how much variation in cpu voltage there is when loaded and unloaded.. I found over 1.8v on my nf7-s that voltage would get very unstable without mosfet sinks, causing the cpu to not get nearly enough power..
Also when you increase voltage remember it also increases current, so 0.1v means it gets quite a bit more power, and could probably add 5-10w depending on the cpu..
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