Quote from: Kuschelweich on January 01, 2018, 04:05:53 PM

Have been reading the official underclocking documentation on these, but it's fairly sparse about what you can actually expect to get from the huge range of frequency settings available. Basically I'd be interested in finding the absolute best W/GH these can produce.

One thing that I can't find any more information about is the 2x Mode mentioned in the manual other than that it's only available with voltage indexes of 4 or above. I even used an archive to search the old BFL forums, but nothing about it there either. Is it actually worth messing with? Does it double performance or some such?

Thanks!

F0D and F1D are the values above FFX. To be honest heat is your key indicator of efficiency, when the heat starts rising faster than linearly then you know you're entering the too much power zone.

Right now I get great efficiency using FEX and FCX on a pair of 2 plug BFL Monarchs being used to keep a room (quite) warm. They're running off a pair of 700 watt supplies, probably pulling under 300 watts each, so around .4w/gh and pulling around 62c at the chips. Which given the silence is not bad and probably profitable.