Well, this is probably better for a miner discussion, but as I'm locked into this forum...
Win7 x64 machine with 2x6950 and 1x7970 on a Intel DQ67SW
-6950 in the x16 slot. 930core,805ram.
-6950 in the x4 slot via a x16-x1 connector. 930core,805ram.
-7970 to the x1 slot via x16-x1 connector. 1150core,1000ram.
Everything is stable as far as electrical.
I've successfully run several miners (CGminer, Diablo, Bitminter, etc.) and keep getting different hash rates. My highest right now is with DiabloMiner @ 1439MH/s. I can get around 1400MH/s on Bitminter, and my highest in CGminer was 1430 from phatk,phatk,diablo. My current SDK is 2.6 due to the 7970, but I was getting upwards of 400MH/s from the 6950s (only around 360 now) before upgrading to 2.6.
I understand finding the correct miner is all trial and error, but I feel like I'm doing something wrong here. I assume I have to use 2.6 for the 7970, but can I somehow get those 6950 to give me back those 80MH/s? If so, is there a guide to install them in parallel (I've searched but can't find one)?
Basically, anyone who's mixed 6- and 7-series AMD cards, what've you found to be the best setup?
Thanks in advance!