Si je commence à parler en Français, je crains que certains me sautent dessus!

If you speak French you fear some will jump over you?!?

I suspect this an idiom that did not survive my poor translation skills (I suppose I could plug the sentence into Google Translate, but where's the fun in that?)
On a more relevant note, I changed skins in MSI AB - I was using the old v3 skin - and now I see that my core voltage occasionally drops even lower than yours at times so I am guessing you didn't manually tweak it lower. If my guess is incorrect then please tell me how to lower core voltage because it seems all I am able to do is raise it.
Hey you do get skills here! ;-)
It's just that I have seen so many people shouting at other ones when they did not speak english but still I get the feeling...
Anyway I did not tweak core (100% in both case), I think it's due to activity handling from miner, as you can see on my snapshot, Hsrminer is less steady than ccminer, certianly it makes drop on core speed.
I also mine ZEN, on another rig... here it's for GBX, imagining that it might pump someday, Nvidia is better actually on Neoscrypt than Equihash.