with engine:790 mem:915 I:18 conc:8196 (works somehow better than 8192) I get stable 370x2 from the cards. I even got more with engine:875 mem:1200 but couldn't stabilize and couldn't find time to work on it. I'm using win7 with 13 beta + sdk 2.9 + sgminer 410. try shutting down all afterburner, trixx etc before running, they effect in one of my rig with 7950's.