ok thanks yeah ive overclocked it at just under max setting for over clock on catalyst control center uped my fan speed on it and its seems stable and its getting about 220-250 mh/s but ill try to boost it more thanks. ill try the 256 but why is it better than 128? just because its working on cracking the harder blocks ?
And whats this error i get once in a while that stops my mining: long pool IO error?