We have setup a test rig to test Asus R9 270xDC2. Posting the image and the config command. I did try a lot of permutations and combinations and this is so far the best. Running for more than 5 hours now and very stable at less than 70 degree C

cgminer –scrypt -o stratum+tcp://stratum.dogehouse.org:3333 -uxxxxx -p xxx –gpu-fan 100 -l 1 –intensity 18 –thread-concurrency 21440 –shaders 2048 -w 256 –temp-target 85 –no-submit-stale -g 1

More on the details later. Please let us know of your setup, config and the results.