Can i get more of msi gtx1070 + overclock?

i was thinking of removing the “case” of each card , the plastic thing.
But by the moment i’ve got another issue. yesterday i receive another msi aero card, and i’ve a seasonic 1000w psu(Seasonic PRIME Ultra 1000W 80), so, i manage to connect the card, windows recognize it, then i opened msi afterburner and set the power limit to 70 , everything fine, but when i open the miner (ewbf) the system halts.
any ideas?

All of mine are rig frames, either from cryptomined, gpushack, or one I had made (from a local supplier) to hold 12 - 1080ti hydro’s

50-55 at my 1070 with overclock +70+600