91W for 570?!? Mine are at 70W in SMOS. 850mv for the core is standard. I guess I could reach 23 Mh too for some cards, but it is too much hassle. I set for all my cards daglim to 4074, because some cards crash and each time my rig reboots, it takes too much time to adjust the cards for 4076 or 4078.