I believe it depended on what firmware you were using.   It has been a long time but I think at least 1 version they did not share the ssh credentials with public.

Its been a long time since I have dealt with it.  Make sure to backup firmware before trying but this might help - https://bitcointalk.org/index.php?topic=648730.0

Assuming it's a B8 running at default 800 watt's is not enough to run 2 blades.  That is a 1000 watt psu only on 220/240 so would work fine there.

But he will have to underclock to get 2 blades running with 800 watt's.   It might not be only issue but it is for sure at least one issue.  

+3.8 = Notlist3d

Thanks! And edonkey is nice we are doing decent on btc value rise today.  Coinbase at 418 currently so a pretty quick rebound and is just getting better and better.

I think your electicity price is more then what most should do.  At 20 cent's I would not mine on it just to high long term.  Only chance is to mine then sell gear pretty quickly.

I would really want 10 cents or less on electricity before attempting to mine.  And that is including all fee's and taxes.

Compound interest is one of the amazing things in finance.  It can work for or against you depending on situation.  But it is amazing over time what it can do.

What I wish I could speculate better is the value of BTC around having.  We are slowly making it back up since the last bump.  But I just hope Mike Hearn can handle not being in the top news on BTC and stops doing statements 2 so far neither helped BTC value.   Short term it's not been the greatest with that and cryptsy.

I think if you believe in bitcoin you believe it will rise long term.   Mining is no guaranteed profit, you have to enjoy it to do it.  Also you are speculating you will make a ROI. 

This thread thought can pretty much be done long and short term.  21 cent's is just to much to mine on.  As long as you can get a data center for half of  that, it's a far better option.

And automation can be done CrazyGuy wrote a amazing custom R1 firmware.  I ran 3 U3's for month's using it with a R1, no babysitting them at all.

But when I ran them on windows without something to detect and fix zombies life was a pain

Assuming B8 or B9 unless underclocked I don't see running 3 blades off 1300 watt's.  Also I don't think it comes with 9 PCIe cables (could be wrong been a while since I have opened a box to one).

It would be the evga 1600 to run all 3 blades if you want to do it off 1 psu on evga series.  I would look at 220/240 if at all possible and there are some great server PSU's.  They have really taken over S7 market on PSU's being used.

I hate mixing PSU's I would see how others with this kit are doing it with 120.  But each board is going to use more then the 400.  So I don't think 1 of the PSU's will run two.  If it was on the 220/240 with 1000 watts it would run two.  But your giving them to few of watt's I think on 2.  Unless they are underclocked then you could depending on settings. Also I'm assuming it's a batch 8 or 9 in this.

So ask seller if they do a mix of how they do on 120.  I would sit it aside till you get that anwser from seller or someone on here who has used it.

20 dollars was if you bought a pack of 10 at least.  Some resellers bought them so it is always been higher then that by a bit.  The U3's lately have been going in 40-50 area which is surprising.  Also shipping on those since come in a nice box with padding is another 10 or so.   

I'm not sure I would recommend them if you don't have automation on fixing zombies.  You really have to watch them more then most miners I've had.   You could get a compac from sidehack and not watch it all day for zombies.  But it cost's more per T, but it's more efficient by far.

Your kinda in a hard market it's the lotto and learning.  No matter what you will not ROI unless you happen to sell at end and get lucky on price.

How is the wiring split on the 1000 watt PSU's?  And are you running them on 120 volt? 

Looks like on 120 they go down to 800 watts.  So curious on your wiring.

It almost sounds like a possible troll.  Someone who knows exact electricity price has done some research to know people will ask that right off.  For him to mention a scam miner that is pretty much dead in all  threads is interesting as it was a obvious scam.  

But troll or not electricty rate mentioned kills the deal .   You would need to pay a hosting center which is less then 1/2 of your power costs OP.  That is only chance at ROI.

They go for around double that currently it's going to be around 40ish on most u3's.   So you are paying for a lotto machine and chances of profit or even ROI is slim.

You need to look at a bigger machine if you want ROI.  Price per TH is just a lot cheaper.  Yes it's more expensive but if you want chance at ROI you have to do it.  Also with U3 they are a pain on zombie you need some automation on reset unless you enjoy babysitting gear.

Sadly you are right these do pop up to often.  And some I agree are the same person chances are.   Venezuela about once a month has someone try to get miners sent to them.  

On this data-labs.org - crappy website with one image nothing on it so I dig deeper:

Who-is:
Domain Name: DATA-LABS.ORG
Domain ID: D179120433-LROR
WHOIS Server:
Referral URL: http://www.godaddy.com
Updated Date: 2016-01-08T17:16:45Z
Creation Date: 2016-01-08T17:16:45Z
Registry Expiry Date: 2017-01-08T17:16:45Z
Sponsoring Registrar: GoDaddy.com, LLC
Sponsoring Registrar IANA ID: 146


So created around 11 day's ago but already have "We research an partner for construction an big data center for processing crypto currencies we just need the equipment" 11 day's to make company and construction to be done.  Yes to good to be true.   I don't DOX other people so did not post a lot of personal info but who-is contains alot.

Chances of this is very very slim.   I think if they do BTC it's going to be hard to claim a tax benefit from it.  It would need to be a big charity for that to be worth it.  I just don't see most doing BTC, I think check's will be most common.

If I was them throw a BTC address up on website that is a paper wallet or something secure. (I would say hardware but said paper as I don't see many using it).  But throw it on site and see if it takes off.  With so many scams I just don't see lots of BTC donations coming in.  A website saying were X charity and put false data or someone else's data is just to easy to do.

Thanks for sharing diagram first time I have seen it.  Still very interesting how expandable they are with using RPI as controller.   I would love to see one using 60 set up on one.  I have had good luck with my two on reliability.

I really wish all miners would use RPI's as controllers really does work well.  It's one pro I see with Avalon 6 over some other designs. 

It is either a scam or greedy person.   If they have what he claims this should be something in their budget.  Look at around 1k per miner you could do 74T or so easily for around 10 grand (maybe a little higher with PSU's).  But this should be within your budget if your responsible for a data center... i think OP most likely is making himself sound more important then he is.

And even if someone crazy would send you machines if your rates are so low why would it be 50/50?  Seems like owner is investing most money, but you think your worth 50 percent?   Split would be no where near what you mention.  But I don't see anyone sending gear.

Not to mention the PSU if your using the 220/240 Bitmain one that thing has a small high rpm fan.  But I would not suggest for anyone to sleep with a S7 in their room, it as just not built for quiet use.  It's loud enough it will be a issue for most in room you sleep in.

If you need one in your room look more at Avalon 6.  It will give you a quieter machine.  Yes it will cost more per T but you will be able to sleep with it in same room, I had it in mine during a lot of the testing I did on it.

S7 is a good machine but you really need an area for it in my view.  Unless you do some modification to make it quieter.

My B8 stay's at 4.7 almost always.  It seems they have done a good job with latest design of getting a product that is pretty consistent on speed.  It is cranked up on freq, so OC is pretty much out of question (at least on how far I would push it).

The ones with 5T and or ones with more chips, I don't think we will see again.  They are able to use less chips now and this lowers costs, makes profits higher.   And hopefully that means they can sell for lower.    But I think 4.7T version is here to stay.

OP should know a lot based on sign up date:     August 09, 2014, 01:07:48 PM surprised just 2 activity.

But OP what is your electricity price?  Make sure taxes and fees are in it.