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1  Economy / Service Discussion / Best Place to Sell Miners? on: February 21, 2016, 01:42:08 AM
I have 35 T/H (9 working miners and an extra for parts) of Spondoolies to sell.  Currently they are running at Great North Data (Newfoundland, Canada), but with the increase in difficulty and the drop in price I no longer believe that mining is a business I can make money in.

So, what is the best way to sell used miners?  Here in the Auction forum?  Kijiji/Craigslist? On Ebay?  It appears that I am required to use Paypal on ebay, and it seems far too easy to get scammed. 

Any thoughts or hints appreciated.
2  Bitcoin / Mining speculation / Re: I am out of the mining game :( on: February 18, 2016, 09:49:06 PM
I don't know anything about these guys but a couple of recommendations...no idea if you have to host a particular amount of time either.


But on 13.7c kwh the rates I was quoted (a month or so back) when I looked into it ...supposedly with fees and 40 buck new account

fee...and of course to 'ship' your titan to them....came out to ball park figure (according to them) of 8c kwh

On my two Titan(s) that came out to about 114 bucks a month savings in electric

again not saying I know these guys...but has got me thinking about summer months maybe I will have to punt to host or shut off

(unless frigging BTC goes up taking LTC and scrypt up with it...these prices for LTC say are not gonna float come summer..just saying)

so anyone know or use these folk?

http://www.greatnorthdata.com/

If nothing else they were 'prompt' with a reply via email on costs


anyway for those who MAY want to 'dangle' in the 'home mining' ie 'boarding school version' for a bit longer Smiley


I have been using Great North Data for almost a year now, but with my hardware and the obnoxious increases in difficulty the last few months I do not think it is possible to make a profit going forward (unless the BTC price goes up a lot).
3  Economy / Service Discussion / Re: Great North Data. Anyone familiar with them?? on: June 13, 2015, 03:32:15 AM
I am a current customer.  I sent them my servers in April, about 40TH.  So far they have been "slightly" more expensive than running the servers myself, but with less billing issues from the electrical company.

You can set up payment to them in either BTC or dollars.  I prefer the BTC to pay as then I can track both revenue and expenses in BTC.  Yes they have HST (harmonized sales tax) on their service, but that is part of the monthly cost.

They do not have 99.9% uptime, I would guess several hours a month of downtime with ~10 power outages in the last two months as they have been upgrading their facilities electrical power.  Power outages make my servers complain (Spondoolies sp30s have issues rebooting themselves sometimes and require a human present to swear at them) but the price, in a data center, is far cheaper than it would have been in a local (Edmonton, Alberta) data center.  If there are power fluctuations they are pretty good about resetting the servers quickly, but, as I said, sometimes the servers don't like to come up again and need a harsh talking to.

The internet connection in their data center is a lot more reliable than the internet was here in Edmonton, (I think GN's internet went down only once or twice for a few minutes in the past few months) but that is likely because the infrastructure is newer.

They run the servers on Eligius, so you can watch your page and let them know if there are any oddities.  You have to give them the server passwords so they can set up the machines in their data center and do the reboots after power outages.  You can't really visit the data center, as Churchill falls is in the middle of nowhere, so you have to have an element of trust, but, so far, I have had the same BTC revenue using them as I did when I was running the servers at my own place.

So far I am still ahead a little in BTC each month (revenue minus data center costs to run servers), but it will take about 44 more months to recoup the initial cost of the servers plus setup expenses.  Will BTC be around that much longer, and what will the value of each BTC be then?  Not sure.  Also getting off topic.
4  Bitcoin / Mining / Hosting costs, questions, problems on: March 12, 2015, 04:34:18 PM
Background - I live in Alberta, Canada.  I bought 8 Spondoolies with RoadStress's groupbuy almost a year ago now.  The machines arrived in September, and I ran a few of them in my house and at friends houses for a few weeks while I spent another 4.5k to rent a space for a year, 11k Canadian to set up electrical, and 2k to set up some very big fans, and another $100 a month for internet.  I ran my servers for October through January with no problems, other than the vaunted Alberta low cost of power being something of a lie.  (We are charged a base rate of 0.07 to 0.08c/kw, BUT with transmission fees and riders extra based on total power used, total bill comes out to approximately 0.16c/kw).

In January, the "Smart" meter that the local power company installed started reading double.  Instead of using 12 to 13kw hours per month, it is now reading 24, so my power bills went from $1500ish a month to over $3200.  I didn't find out about it until the first bill was due.  I complained, but the power company's policy is "5 business days to respond"  After several 5 day periods of responding to my emails, they have agreed that I will pay them $400 to test the meter, and they will reimburse the money if they find the meter is broken.  They have yet to set a date for the testing, and at the current double rate I am barely making positive cash flow (my head is above water ONLY because bitcoin is back up to almost $300, otherwise I would be losing money per day).

I am unimpressed, to put it mildly.  So, I have been looking at alternatives.  If I sell my equipment now (I have 40Th) I figure I can get between 10 to 15k for the servers on ebay, and I will have lost a lot of money.  If I maintain my current place, I need to put in another couple hundred to optimize airflow for the hotter summer months, and then I still have to deal with a power company that is screwing me, so I will not be making money.  The third option is hosting.  Hosting in Alberta is very expensive (like everything here), which is why I built my own place to begin with.

In another thread, a new Newfie based hosting company is offering hosting in Canada for 0.06kw (US dollar amount).  That is cheaper to host than my current monthly rate by a good bit, however, they are a new company with no reviews, and I am effectively sending tens of thousands of dollars to a random person on the internet with a website.

So, what questions do I need to ask, and what can I do to try and ensure that I do not get ripped off?  I asked for a copy of the CEO's driver's licence, and he gave me that (with the serial numbers whited out), and he does appear to be a lawyer in good standing in the Nefie & Lab bar association.  They do appear to be insured for 2 million (the standard nowadays).  The address they gave me in Goose bay is next to a hyro electrical plant, but google maps doesn't appear to have a street view for such a small town.

I sent the Director the following questions:

1.  I will need a copy of your insurance certificate, and something from your corporation that has your name on it, along with an address.  I need proof of you who are of some type, other than a webpage.  Scan your driver's licence in low quality and block the number so it can't be used for identity theft?  Again, I need to know I am sending my machines to a business that will run them for me, as opposed to a random person on the internet.  if you can think up a good way for me to verify you are who you claim you are (other than meeting in person, unless you are visiting Alberta soonish) that would be acceptable.

*Note - both of these documents were sent to me yesterday*

2.  Do you already have contracts drawn up for hosting?  If so I would need to peruse one.
*Note - the contract they use was sent, I am reading it over*

3.  Do you supply 240V power (that is what all my machines are currently running on, as they run cooler than on 120V)?
*Response - they supply 208V*

4.  Are you willing to turn machines off and let them sit for X months when the BTC price is low?
*Yes, up to 3 months, but they are not a long term storage facility*

5.  More of a comment, but 27,000 cfm is enough to run 88 Spondoolies (barely).  I have 2800cfm (10% of yours) and that is NOT enough to cool my 10 machines unless the temperature outside is -30C.  If you are going to run hundreds or thousands of machines you will need a LOT more airflow.
*Response - their contract says they will maintain a positive air intake temperature of between 1 and 30 degrees C*

6.  Do you individually meter everyone's sets of machines, or do you use a "kill o watt" device to measure draw at the wall when they are running (and if so where did you find them for 240V)?  If you meter, what kind of meters are you running?  I ask because I am looking to move as the "smart" meter installed in my business has been reading double the past month.  I am paying the electrical company to look at it, but they are pretty slow to schedule, and I am getting annoyed with them fast.
*Response - they use a PDU to constantly meter draw, and will set the contract based on initial readings*


So, to everyone on the forums that has set up or used hosting, especially if you have used hosting in a place far away from you, what can you do to ensure your own financial safety, other than what I have already done?

And what other questions do I need to ask, or what else do I need to know to make a good decision? (Yes, I need to get a shipping cost, and Canada is a stupidly expensive place to ship parcels).

Thanks for any help!
5  Bitcoin / Mining speculation / Re: What's the deal, miners? on: March 11, 2015, 09:18:24 PM
Buy in bulk and it will reduce costs considerably.

Do not buy 1-3 SP31, order 20-40 then the pricing makes it so you can make profit.

No.  You can no longer make your money back on hardware.

Most of the people running miners today, like me, bought them last year.  Now that I have them, and they are running, I lose more money by shutting them off and selling the hardware than I do by keeping them running.  I will not make my money back unless the price of bitcoin goes back to at LEAST $700.  But a small revenue stream is better than nothing at all.
6  Bitcoin / Mining speculation / Re: Methods of getting free electricity on: March 09, 2015, 10:24:20 PM
Solar and hydro are 10-15 year investments and is difficult to justify just for mining. Good mining hardware is only useful for 18 months, so it doesn't make a lot of sense to install. (Although that portable hydro plant looked really cool.)

We're the cheapest hosting in the world. There were some people looking for numbers before. Prices start at $67.80/KW and go down from there for pre-payment and larger orders. (And if you want to talk really large orders, we're adding another MW in the next few months, and our bulk prices are also lowest in the world.)

We're located in Canada, carry insurance and have staff on site 24/7.

Run the numbers for your example setup. 

I see you have a rack of 10 Spondoolies.  Assuming they are SP30s, drawing 2400 watts each, that is 24kw per hour.  In a month that is 24kwx24hoursx30days=17280kwh.  I am guessing you are charging $67.80 Canadian per thousand kwh?  So cost for a month is 17.280*67.80= $1171.58, which is $39.05 per day. 

If your Spondoolies are pulling in 40 TH you are doing very well.  At current difficulty that would be about 0.44 BTC per day in a big pool.  If bitcoin price is over $100 you are (in theory) making money.

Am I missing anything?  Other than the fact that your power is 1/3 of the cost of power in Alberta, which makes me wonder a lot...
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