So I'm trying to get my 290 and 290x setup. I've been tinkering with the settings and trying to be conservative with it still with no luck.
I'm using this following config...
setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_USE_SYNC_OBJECTS 1
./vertminer --nscrypt -o stratum+tcp://east1.us.stratum.dedicatedpool.com:3367 -u 0ut1awed.1 -p x -d 1 --no-adl -I 15 -w 256 --lookup-gap 2 --thread-concurrency 24500 --gpu-memclock 1500 --gpu-engine 1000 --gpu-powertune 10
It will run on my 290 giving me a supposed mere 325Kh/s but the pool only reports 20Kh/s. It's probably because of all the HW errors I'm getting (I believe that's what the numbers tallying up next to HW are). When I run that same config on the 290x it reports back 900Kh/s to 1Mh/s but no accepts and doesn't even show it being up from the pool site.
I realize you have to fine tune but I feel like I'm already really modest in what I have setup.