You know that you don't need the crossfire bridge for mining right?
Unless he's running Windows and doesn't have or want to use dummy plugs.
Crossfire hurts your performance when mining. People use dummy plugs because they have no choice. When I had 4x crossfired it was constant problems.
I had no issues with performance. I used it because its easier than using dummy plugs and works just fine. I do my testing under windows which forces me to use those cables. Plus it looks much nicer and allows the person to have a high end gaming pc along with a great miner. Plus the bridges dont cost me anything, i wa getting 400mhahes/s from each card at 900core. Was it suppose to be higher?
I call BS on this one. It is very hard to believe that this 4x sandwich does 0.4 Ghps per core for more than 1 minute in a row. Maybe with exception of some weird setups with room refrigerated otherwise and even than it is highly doubtful.
Video on youtube or this is a fake.
i am running 2x 6970s @ 905MHz/170MHz gpu/vram respectively, and they push 401Mh/sec each...
