tc 8192 disable my gpu but i try your setting change my tc to 5600 it improved but getting hw 102

Try 8193 and drop the -I if you get hw.. I was having a lot of problems.. got one card at 300 and another at 350.. couldn't get them both at 350 and I spent an hour toying with it..
no luck everytime i try 8193 my gpu is disable the best i get is tc 6130 - I 12 270kh
Im getting about 350 kh/s per 7970 x3 with these settings. I tried 1100/1500 and my hash rate was lower so try this
setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_USE_SYNC_OBJECTS 1
exeminer.exe --nscrypt -o x -u x.1 --thread-concurrency 8193 --intensity 13 --lookup-gap 2 --worksize 256 -g 2 --gpu-engine 1022 --gpu-memclock 1493 --shaders 2048 --gpu-powertune 20 --expiry 1 --scan-time 1 --queue 0
execoin wallet
ENCXGs75c3LTTei435sTAacePF2gVdXGqDcoin_zps35bcdf4f.png[/img]I dont get why 280x are doing so bad while 7970's can run at 350 kh/s. I now 4 cards with these settings above and all of them get 350 kh/s @ 1070 watts
Have you looked at the vertcoin setting thread and tried to find some 280x settings?
https://bitcointalk.org/index.php?topic=416572.0Thats where I found the settings for my 7970's.
You have an exeminer? Where can you download this miner? Is it specific for execoin?