I can got only 2.3 MH/s with R9 290X, any suggestion for improvement?
can you show your .bat or .conf ?
setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_USE_SYNC_OBJECTS 1
del *.bin
Color 0A
sgminer --algorithm bitblock -o stratum+tcp://stratum.hashhot.com:3308 -u username.worker -p workerpass -I 20 --thread-concurrency 21712 -g 2 --gpu-engine 1000 --gpu-memclock 1250 --gpu-powertune 20 --gpu-fan 75 --temp-cutoff 85 --no-submit-stale
Use gpu-engine 1150 --gpu-memclock 1500 , try again , if you get HW try to I - 19 or 18 .