Here is a sample 280x/7970 Config (340Khs) 980/1480
vertminer.exe --scrypt-vert -o stratum+tcp://caishen.leetpools.net:3333 -u user.1 -p x -v 1 -w 256 -I 13 -g 2 --lookup-gap 2 --thread-concurrency 8193
Have sapphire 280x toxic cards, hope this will work for me, because i'm nog so a good troubleshooter
Do what I did, test it on a Vertcoin pool. My miners are ready for this launch!!