You may clock your core to 800-820 and force your fan to 100%
With these settings i get about 380kh on core,or 760kh on card.
With 2x5970 cards i get 1520kh in this moment.
If you change thermal pads and paste you will get little lower temperatures for sure.
sorry for asking. what commands u use on .bat file?
i turned core clock to 820 but its now about 1255khs.