Also, I wanted to confirm what was mentioned earlier in the forum. Setting the frequency to 1000 and the "auto-frequent" to "1" in the JSON file has greatly improved my stability and hash rate. I have no idea why that would be the case, but it is working much better now. Been running about 18 hours with no hiccups at 6.85 gh/s.
So it may not work for everyone, but I have seen a noticeable improvement.
Mind telling me where you go it from and price? Local retailers is charging a stupid premium (around 6200 usd) making it a no go choice for something not even in stock.