NP

here is the link, I had to go through some posts from a few days ago to track it down. I used it on my 570's 580's and 560's it gained me  between 0.2 - 0.5mhs on average per card over just coping timings from other memory clocks. I found it more stable for my 560's also

https://github.com/jaschaknack/PolarisBiosEditor