I have 4 HD6990.
Can anyone post config for those cards. I use Win10 and catalyst 14.4.
Auto config does not work.
worksize 8, alpha 64, best 8, multi-hash 432. That kills the cards.

Only multi-hash up to 240 works and than it generates 80h/s.

XMR-stack hashes at 250h/s.

Where is the problem?