Hello, tried cl global and local work values changing, and overclocking. Stock speeds are 1100 and 1500, but memory doesnt downclock at all. Currently at 1050 - 1500 and having 18.0 mh with default cl works and 18.4 with 128-8k numbers. Other miners post here that their 7979-s have 20+ mh, any tips how i can achieve those? Msi afterburner doesn't allow me volt changing. win 7 ethminer dwarfpool with proxy. Thanks for help!