Which OS? Try changing drivers, I found I couldn't get anything stable with good speeds on 14.4 or 14.3 with Windows 7. I'm back to 13.12 drivers now, and working great. Use Display Driver Uninstaller from here
http://www.wagnardmobile.com/After getting the drivers back to 13.12 I tried using multiple threads and it did give me about the same speed as I'm seeing now, but much more variance in current hash speed so I switched back to a single thread and here it is now with the constant 1500mhz mem speed after 12 hours.
http://i152.photobucket.com/albums/s196/nicknrd/Crypto/x11-405mh.pngSettings:
setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_USE_SYNC_OBJECTS 1
export GPU_FORCE_64BIT_PTR=1
##export GPU_MAX_HEAP_SIZE=50
del *.bin
timeout /t 4
sgminer.exe -k x11mod --rawintensity 1306624,1306624,1306624,33280 -g 1,1,1,2 --shaders 2560,2560,2560,1280 -w 256,256,256,64 --thread-concurrency 24577,24577,24577,10241 --no-submit-stale -c sgminer.conf
Reject rate is well within acceptable limits, but I'm going to try it with 5 threads for 10+ hours to see if it does in fact lower the amount of rejected shares or give an increase in the overall average speed. Thanks to everyone for sharing their tips for these cards.
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OK. I gave up on my 5 threads idea and dive into only 1 with your suggested rI. Going nice and smooth at 4.2MH. Let's see how it settles, but it's a go. Two things I noticed: the suggested "export" lines in a .bat file in Windows do nothing (unknown command error) and if you quit MSI AB you get a hash increase without loosing the card settings. Just tick to apply on boot in case your rig reboots unattended and check for AB to not run, once in a while. Power at wall still jumps between 480 and 550W (can also be seen on GPUZ on 12V load line).
To sum up: 2 x ASUS R9290DC2OC 1080/1500 Powertune +50 (with MSI AB set and close), AMD 14.3beta, Win 8.1 Pro, Elun B2 sgminer, NRD settings = 4.21MH/card @ 1 hour.
Thanks guys.
