They promote these miners with "Avalon4.1 4.2T Suite". Okay, 4.2 Th.... They also write: "Mining speed can reach 1.3THs". So 3*1.3=3.9 Where are the missing 0.3 th/s?
So in the best of all cases, you get 3.9 Th/s for 6 BTC. But still have to buy PSUs. Has anybody ever reached 3.9?
So in the best of all cases, you get 3.9 Th/s for 6 BTC. But still have to buy PSUs. Has anybody ever reached 3.9?
Okay these miners are all about quiet not hashrate.
I can get as high as 1.2th but like spondoolies sp20's higher clocks burn more power per gh.
So if you have free power and want to overclock them tell me I will do a 2 unit 6 hour overclock test for you.
I am at 1637 and 880 watts for 2 units as sound is my absolute most important issue. next is power I am at 0.5375 watts a gh
here I am on a freq 20.94 2 unit under clock
If the noise is the issue, they should promote this - but they do promote the hashrate. It's as if I sell you a house with five rooms, but you see it has only four, and the seller tells you with some bricks and skills, you can build a fifth room - maybe. But never mind, the main issue is that the house has four doors.
Okay I tell you what I will set it higher and see what we can mine.
I bumped freq from 20.94 to 26.74 I am running 1 not 2 units.
But don't burn your house down! I don't want to have trouble with your wife!!!
2 units now 2 psu's each about 800 watts so 1600 watts total for 2300 gh or .69 watts per gh.
So just like the sp20 power use jumps faster then the hash rate.
I was 1600 gh and 860 watts = .5375 watts per gh I am not sure I want to push past the present settings. note I cranked the volts to 8625. gear is still pretty quiet
Now 2308 gh and 1600 watts = .69 watts per gh
You can run up to 127 avalon in chain. 
