What happened to their promised leading efficiency of something like 0.4W/GH  

Meanwhile I am sitting here with my miners at (under) 0.9$/GH and am really bummed that I didn´t ride the butterflylabs train to josh/Sonnytown /sarcasm

This time only a little more than half a year´s delay?
That means next time it might be only 4 months delay, which constitutes express delivery for BFL.

Also:

Shouldn´t there be some people who traded their refund money +10% for these cloudhashing contracts?

If so, it is probably positive news to see nobody complaining.

Do you suggest I built my sp30s myself?

If so, I am really talented and should rightfully earn lots of money.

Congratulations, you just made the 2nd place on my ignore list.

It isn´t their virus.

There was a similar email attack with bitmaintech email, so yeah.

Most likely the email adress was collected from another bitcoin related site.

My estimated internal cost would also not enclude NRE such as engineering cost etc.

I was extrapolating from AM/Bitmain figures, and calculating at a high production volume (which might not be applicable here).

The hashfast chip also needs a quite expensive PCB, but is it more expensive per GH than other miners?

At the end of the day the chip is quite potent, but needs expensive peripherals to work properly.

I am still running one sp10 at the Iceland facility, and I will not change that one (also, I have a minimum contract length there).

Toom.im offers 76$/kW/m at the same 6 month contract lenght Thor DC (Advania, Iceland) offers. (Thor is 120$/kW/m though, and does not accept bitcoin or paypal payments).
Contracts with Toom.im are 90$/kW/m on a one-month term, with prices as low as 70$/kW/m.

I can say however, that I am moving an sp10 from spondoolies to Toom.im aswell.
Ambient temperature might be slightly lower in Iceland during the summer, but certainly not in the winter. While the sp10 is fairly temperature sensitive, sp30 isn´t.

My sp30 travelled from Israel to jtoomim´s WA hosting facility in only 2 days. (thank you Spond∞lies and FedEx)

A short review of my hosting experience so far can be found in the hardware hosting comparison thread:

https://bitcointalk.org/index.php?topic=622998.msg8361310#msg8361310


Also: I was faster than you, RoadStress

Toom.im bros hosting experience update.

As previously stated I sent some sp30s to jtoomim´s hosting facility after getting a stellar video tour and answers to any questions I could think of regarding hosting, power and cooling.

This is a first update with impressions of the service so far, and I must say I am very impressed.


Shipping from spondoolies to the hosting facility took only 2 days, the units left Israel on Tuesday and arrived Thursday 11:30am. (Thanks go out to fedex here)

Within 15 minutes of delivery, my units were set up and ready to hash, I even got another short video of my units sitting in the rack.

I was able to get access to the webUI, although they would have gladly set up the unit via email/skype/facetime provided information. (I guess that should cover everyone )


The units perform well at the advertised 4.5TH.
The built-in temperature sensor reported 25°C on a hot day (without the actual cooling systems online) and 21°C on a normal day (with 1/14th of the evaporative coolers running).
From experience I can say that spondoolies temperature sensors typically report ~3°C higher than what the actual intake temperature is, and this was confirmed via thermal camera. (although 25°C is nothing to worry about)

I am therefore quite certain that temperatures should not exceed 25°C on a hot Washington day and with winter approaching, airflow should be more than sufficient to cool your units to even lower temperatures.

I am happy to say that jtoomim is very knowledgeable about sp30s and sp10s, aswell as bitcoin mining in general, and offered tips on how to further improve unit stability and performance.


Finally, I am very pleased with the pricing for this service, which to my knowledge is industry-leading (feel free to correct me though), and certainly lower than what spondoolies themselves offer
(which in fairness is not meant to be a long-term solution, and is provided at-cost).


I am quite certain jtoomim is still offering video tours of his hosting site for anyone interested in hosting (but please don´t only use it as an excuse to see a pile of hashing sp30s , although it is a great sight).

KnC does however use a significantly higher load on 6-pin PCIE connectors than what they are rated for.
This makes them responsible for any damage occuring from this.

It is really cheap to circumvent these kinds of problems, another 6-pin PCIE or even an 8-pin PCIE would go a long way with regards to safety (and might even improve efficiency by lowering cable losses).


As KnC has previously stated they are not likely to produce another retail product, and my guess is they didn´t care about these issues as their custom DCs (which they are really designing the units for) will
a) underclock the modules to reach even higher efficiency
b) have significantly lower ambient temperatures
c) custom 14AWG wiring.

Do you mean in two weeks (TM BFL)?

@nhminer
That would only decrease the likelyhood of bitmine returning customer funds, so why would you even mention this?

Once a company owes you money, you should help the company succeed...

There are good hosting solutions available starting at 0.07€/kWh, feel free to pm me if you need any infos.

@customers with these orders

Would you care to share the amount of compensation that has been offered?

As the last units of this week were produced and shipped today, I think my assumption of groupbuy units shipping after the 15th will prove to be quite accurate.

I understand how painful it is to wait for ordered miners, but I am sure spondoolies is producing a quality product as fast as possible.

That gives you little indication, as some orders contain 30+ units, and some only one.

As far as I can remember, efficiency at 110V was actually better than at 240V, minersource confirmed the same efficiency numbers at 208V.

Total hashrate was a little slower at 110V (which has obvious downsides).

It doesn´t neccesarilly mean that the data was leaked from bitmine, it could just be an email spoofing, virus spreading attack.

@Makrum

You do know that you can have your units show as seperate worker by using YOURBTCADDRESS_workername in the pool/worker settings?

If you are talking about the knc newsletter, it is badly researched.


It also claims bitfury be 3500 does 0.62J/GH, which not even bitfury themsleves claim (it is ~0.775)

dr gero is right.

Legally speaking, it is gaw´s responsibility to deliver product as advertised or give the client the option for a refund (or try and compensate the customer for the different specs, this needs customer approval though).

jar are java executable and could contain a virus.