Any suggestions for cgminer with the 7970's would be appreciated. Have four of them in-house right now, all on BTC, but moving any of them over I tend to top-off at 550KH/s without getting hardware errors. I've got the same Gigabyte one, just seems to not like any of the stats thrown at it or recommended on the hardware comparison.
Just copying what I posted in another thread:
Try this with CGMiner:
--thread-concurrency 8192 -I 13 -w 256 -g 2
And keep your core/memory ratio at 0.5757575757....
So with a 1000MHz core, your memory should be ~1737MHz.