I am ball-parking here, but most of my antminer's are well on track for profit.

Antminer #1: 4.75BTC batch - returned approximately 4.3BTC and then sold for roughly 160% the cost of ordering a new one in the 1.9BTC batch (minus ~0.5BTC) for lost mining time) = ~4.8 BTC total plus funded antminer #6 that has been mining for about 10 days
Antminer #2: 4.25BTC batch - returned approximately 4.0BTC and then sold for roughly 160% the cost of ordering a new one in the 1.9BTC batch (minus ~0.5BTC) for lost mining time) = ~4.4 BTC total plus funded antminer #7 that has been mining for about 10 days
Antminers #3&4 : bought in the 3.15BTC batch IIRC, returned a significant portion and then sold the same way as those above to buy Antminers #8&9

Antminer #5 : bought at 2.2BTC and well on track to return a profit - I would ballpark that it has mined almost 1BTC already
Antminers #6+7 : bought at 1.9BTC, arrived ~24th and have mined at least 0.5BTC each
Antminers #8+9 : bought at 1.9BTC, arrived ~27th and have mined at least 0.33BTC each
Antminers #10+11 : bought at 1.9BTC, arrived ~28th and have mined at least 0.3BTC each

Basically the first 2 antminer purchases almost entirely funded 6/7 of my current antminers I have in place, and also ~$1500 cash to balance out my investments


In my mind, the current 1.45BTC batch may be a little bit too pricy if it does not ship until the 8th and arrive the ~12th. ordering now guarantees an added 3-5 days before they ship the *presumably sizable* list of orders placed during CNY, and that may not be enough time to break much if any profit from the systems.

A 1.1BTC unit that ships on the 20th would be a good deal IMO

idiot. you posted the exact same thing in another thread too. You basically are saying that $36 is a fair price for an Antminer S1, despite the hundreds of users who say otherwise and are paying ~$1300 (a fair price)

I should give you a bitcent so that you can go buy a proper calculator, because it wont buy you 50GH

I think its important to look at the competitors - its clear that chip design trumps size.

Bitfury 55nm :    0.8-1.1W/GH
Antminer 55nm : 1.9-2.2W/GH
ASICMINER 40nm : 0.4W/GH or less

compared to most 28nm designs being in the 0.6-0.9W/GH range and KNC promising ~0.3W/GH at 20nm

It seems obvious that the silicon design is more important than its size, since Bitfury's 55nm technology is competitive with chips much smaller than it. Asicminer is making promises of a 40nm chip that will beat out current 28nm designs and compete with the KNC 20nm design even

only trick is that you need to wire up most of the power BEFORE you cram everything into the cabinets, especially if you use the screw terminals

+1. I have 7 bitfury cards in my septemer starter kit and 7 antminer S1s - Bitfury accounts for only 15% of my hashing power, almost exclusively because there is no reason to buy more boards when they are so horribly overpriced. 5 of the boards I have I got for free because my september kit was one of the delayed batch and I had to wait months until a viable opportunity to use my store credit

Whoever is in charge of business strategy clearly doesnt care about selling to the public, or is only concerned about the private mining facility

what are you smoking? You want to pay $36 for a 180GH antminer? go soak your head

I will entertain offers of 4.50BTC, but you must remember that an order placed *now* with bitmain will be at the back of the queue and likely not ship until the ~13th and arrive till the ~17th. Power supplies are included and the units are overclocked stably already. I am charging a premium for this utility, and am the cheapest option on the Toronto Craigslist

The price is for a crate (2 antminers). I have multiple crates available though.

shipping is not ideal, since the crates are large and add bulk. I am really looking for local buyers on this ad, unless you want to cover whatever the cost is to ship a 12"x14"x12" item that weighs around 20lbs

totally meaningless drivel. switching processes increases risk and cost, and changes some of the fundamentals of electronics engineering.

to say 30GH on a chip is also meaningless. KNC, Cointerra, Hashfast all created big-die chips that are capable of 10x that per chip, but use less chips. The important number is how many GH in how small a space

BULLSHIT. Power supplies have a 10-20% loss, and cooling is usually calculated at about 40% of the power usage. 1.7MW of chips will actually draw closer to 2.5MW

that might not be a bad idea, but it would still require an SD card in the rPi, which seems to be the weak point in any case. plus, I use a laptop so probably not a solution if i am jumping around the house and/or leaving the network at times.

Once its up and running its fine - its just the power changes that kill the cards so I leave the system to do its thing undisturbed

Looking to sell a bit of my loud + noisy collection.

here I have some stacking crates for sale, each one has 2 antminers and 1 or 2 server power supplies capable of running them overclocked.




IN-HAND NOW!

Multiple units are available In-hand right now in downtown Toronto or in Markham

I have pre-configured pairs of units for sale. It is 2 antminers plus powe supplies fit securely in a stackable storage crate. Basically as plug-and-play as you will get, just needs 2 power outlets and 2 ethernet connections - overclocking is already optimized for the system at roughly 195-202GH


looking for 1.5BTC for a single crate or 2.8BTC for both

Can also sell single antminers (tested, overclocked)

this got moderated from the official thread - lol



the license plate is  'ACTM 911' - seemed fitting

I just wanted to post a bit of a numerical update to give some idea of where this project is headed.

Based on toronto hydro commercial rates, including all the (bullshit) extras like debt reduction, delivery, meter cost, etc : ~$0.14/kWh

add in the cost of renting,insuring, and securing a small 20kW/h facility -> ~0.20/kWh for equipment hosting
"    "         "         "               "                   "             40kW/h facility -> ~0.17/kWh for equipment hosting

if you compare with residential rates; with all the residential fees/tarriffs included -> ~0.17/kWh to mine at home. This means that it is feasible or even ideal to create such a localized facility. Pushing the power requirements towards 60-80kW/h (not at all unreasonable by the end of 2014), costs would be less than mining at home, and would include hosting.

Right now, hosting would be relatively basic. I picture a 15'x15' security cage within the rented space that is monitored by a few IP cameras (recording to off-site HDDs) and has multiple 120V and 240V circuits on 12AWG wire (20A/circuit) or better. UPS/generators are not part of the initial scope due to the associated costs, largely because brownouts/blackouts are uncommon to the area - maybe a dozen 0.5-3hr outtages per year on average - and would be experienced in an at-home setup anyways.

for hosting, there would likely be a small setup fee depending on the difficulty of the equipment. For example, $40 to setup an antminer and $80 to setup a bitfury. Once more details are laid out, I feel like the best approach would be to invite a few existing miners to relocate thier equipment to the facility to test it, followed by a groupbuy for the best available hardware (antminers?) with clearly-written terms including how long it will be hosted (based on time or based on a profitability equation in case BTC value rises and the devices continue to be profitable past July)

if your PSU and antminer turn on fine, then the PS-ON jumper isnt the issue (assuming it isnt randomly wiggling loose, but then it would cycle on and off a LOT!

sounds like the issue is your antminer if multiple PSUs cause the issue, but im not sure why. try switching the control board to the secondary hashing board and run only that side of the unit.

also, take a multimeter and measure the voltage at the screw terminals. if its outside of 11.8-12.3V you could be having issues

+1. Even if the bitfury was price-competitive (factoring in a small premium for lower power draw), it is not a plug-and-play system. it needs tweaking, has trouble standing upright, and seems to obliterate SD cards just a little too frequently. I had a power outtage for 1hour, and all the antminers came back online without a problem. the bitfury sat for almost a day because it fried the SD card (second card it has totally trashed, not just corrupted) and I had to go and purchase 2 new cards for it.

the luci screen will load due to your browser cache - the actual antminer IP likely changed when you reset. try 192.168.1.99 or 192.168.2.99 if that does not work

not possible.

it wont work with an armory wallet will it? I have 1BTC locked up and none of my common passwords seem to be the match

when will there be a price reduction - or better yet pricing in BTC?  An h-card that is rated at 25GH and capable of ~33GH is only worth around 0.25 BTC or $200 right now based on your competitiors such as Antminer (180GH/1.45BTC shipping after the CNY)