1x5770
2x 6950s
7x5850s
20x5830s
~10Ghs
What are your cards running at? You seem to get better numbers than I do out of the same series cards.
310 5830s
380 5850s
750 6990s
240 5770
heavy overclocks.
i have the some gigabyte cards which run best with direct air from the top cooling those copper heat pipes. they run in the 50c range at 65% fan