After originally being put off by the S5+, I'm now warning to the idea. If I retire my existing hardware, I have enough amperage to put this in our cage at a data center with enough headroom to be comfortable. We're running at 208 volts.
The trick is the power supplies. Basically you need something like 1300 watts each? I don't have anything like that right now.
And this is a string design, so there's no under clocking options, right? You have to feed these beasts the documented power and that's it?
Bitmain recommends their own server power supplies, of course.
Too bad this guy only has 1100 watt PSUs left. He's out of 1300 watt units, I think:
https://bitcointalk.org/index.php?topic=1037372.0There's this 2880W option too. I guess you'd need two of them, which is cheaper than the Bitmain route where you'd need 3 1600W units:
https://bitcointalk.org/index.php?topic=966135.new#newAny other PSU options that would provide enough power but be reliable and affordable?
I can personally vouch for Finsky who is the US distributor for Jabberwock's break out boards.
I purchased some of the first one's he had sent form Jabber. I think they were the first ones and they are still running hard right at this moment. I'd managed to find my own supply for the actual power supplies and was only getting the boards, but my last order included power supplies as well because prices went up all over for these babies.
Finsky and Jabber are both great guys and great contributors to the Bitcoin scene. I can't say enough good things about Finsky though as he is the one I dealt with the most. We actually ended up talking about all sorts of things over days or weeks. He can also hook you up with cables because keep in mind you'll need both ends of the cable to be the same. They must be the same end which you connect to any of the Bitmain S3, S5, etc series miners. In other words the sockets go on both ends of the cables because the boards have the pins just like the miners.
I'm assuming the S5+ has the same connection style, I have cables of all varieties so haven't paid close attention to that part heh.
I also purchased many 2000 watt power supplies, cables, and breakout boards from Sidehack and Novak:
http://www.gekkoscience.com/products/IBM2K_board.htmlI think this board is a work of art. It has many functions which would come in handy with a miner setup this way and I am considering using these. The DSP2000BB Power Supplies are inexpensive and you get pure quality with the boards.
The functionality for the DSP2000 breakout board is shown on the smaller power supply document:
http://www.gekkoscience.com/misc/V0.5_Board_Doc.pdfYou cannot go wrong with either one of these rigs. It is truly a matter of looking at the details and determining which fits exactly the way you want to set things up.
Consider some of these data points:
The 2880 has a fan module which connects to the front. You will receive that with the power supplies if you order them from Finsky, but with the 2000 you can install whatever fans you want and control the speed. The 2880s are howlers, but if you stack two 2000s, put two 120mm fans on them and run them hard you are going to make noise with them as well. If noise bothers you.
Where are you located? The 2880 break out board is made in Europe so I imagine shipping is less for them. Finsky handles the US and then again Sidehack is in the US.
If you want to do current sensing, load balancing, fan control then you'll want sidehacks board.
The DSP2000 is gold rated where the 2880 is platinum. Not a huge difference on the monthly power bill for two power supplies, but it certainly adds up over time, and with a larger quantity.
There are other things you may find which are a priority for you, but fortunately both of those guys are very helpful and most importantly honest. They will tell you if you pick something which doesn't make sense even if it costs them a sale. You cannot buy that kind of honesty, it is there or it isn't.
