Quote from: BSAlex on November 10, 2017, 09:14:44 AM

Is it possible to run more then 8 "obsolete" AMD GPU in one rig? I am running 4x HD6990 in one rig, Windows 10 Pro, Crimson 15.12 driver, Claymore Cryptonight AMD GPU 9.7 miner. Every HD6990 GPU contains two Cayman GPU, so system is up to it's maximum Windows capacity of 8 GPU, modern drivers that remove the limit do not support HD6990. I try to find mining Linux version but so far can't find any supporting Cayman. Please advise what OS may be appropriate for the task.

There is a driver specifically designed for mining. They are not very critical to the equipment. The installation of these drivers will help you. I have the same driver works AMD 7990 and RX 580. Try to contact the support NiceHash. They spetsializiruyutsya in such situations.