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I bought an antminer for 4.75BTC and a second one at 4.25BTC
they have mined 4BTC between them in about a 4 week period. I expect they will breakeven around the end of winter if you consider the powercosts to be less than 1BTC in that time frame.
all-in-all, on a 9BTC investment i expect to end up with 10-12BTC and 2 awesome pieces of hardware that will probably still hold $1000 in resale value on ebay
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500/45BTC is insane.
This should be 500/30 BTC or 100/8 BTC
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terrible pricing, a box of 500 at over 30BTC is a ripoff i think. realistically, these wont mine more than 0.02BTC if lucky, and will probably not fetch more than $125 on ebay
A pack of 15/1 BTC would be nice.
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Old-gen stuff would be on V1 and V2 m-boards at this point. The photos show what appears to be a new generation of PCIe card with exposed metal for thermal dissipation on the back. I just think it makes them more money to sell rather than deploy at the moment. That makes 3 different versions of PCIe cards that I am aware of. The somewhat problematic ones with the grey-metallic coil pack, the pulse coil ones, and now this.
I would be tempted in a halfy for $2000 in January. Or, may be a quarter with some returned cards put in slot 2. But, speaking of old stuff hitting the market, has anyone else noticed the sudden drop off in network hash-rate after China took a squat over the market?
Drop in network hashrate? I'm seeing close to 10 Ph/s. not seeingt any real drop. the hashrate fluctuates a lot, so most 'drops' are just periods of low luck, rather than a change to the amount of hardware connected to the network. however, its likely the drop in value may be enough to dissuade any remaining fpga and GPU miners. it may be possible too that some early adopters (gen 1 where >7GH/W) are limited from adding newer machines due to having BTC invested or already using several kW of power |
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I bought one yesterday and paid the price that was given on their site.
A couple of minutes after I paid, they contacted me and asked for my address so they could refund the BTC I paid to much when they checked the live value.
Excellent service, I must say!
thats the dilemna of selling in USD via bitpay rather than direct BTC prices. Im curious, what is the price *supposed* to be? 1.15BTC for brass? |
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Ok, well, I guess I found the source of the problem - the left side (aka blade #2) on that unit is bad. I had the unit on by itself on the same PSU as the fully working unit. Yes I did disconnect the other unit entirely. The faulty unit was all by its lonesome. Left the miner cool for a few minutes, powered it on - the same xxxxx on the second module. I tried powering just the faulty blade alone, but I guess the first blade needs to be one as it seems the controller board is fed through it so the unit will not power on fully without the "master" blade.
ASIC# says 16 for the faulty blade, so half of the chips are not functional, although if you go by counting x's and o's more than half are throwing errors or non functional.
xxxxxoxo xoxoxoxo xxxxxxxx xxxxxxxx
Swapping the PSU at this stage would be a pointless exercise.
so you are running a single antminer on what PSU? (brand, model, wattage, etc) alternatively, use a multimeter and check the volatge on the bad board. to do this:red (+) probe goes to the bottom connection of the large grey cube-shaped inductor (there are 4 of these per blade, test on all 4 on the bad side please) black (-) probe goes to any of the small copper dots on the board marked with 'GND', or to the GND terminals for your PSU cables you should see 1.10V on all 4 inductors. if not, it narrows down the possible sources/causes of the problem. I mentioned the brand model wattage before..It's an OCZ EliteXstream 1000W, 1000 watts single 12v rail. Hmm, well I'm going to the hosting location today and I'll bring my multimeter with me. I'm going to note down what you said about the voltage test points. my apologies then, info gets buried in the thread easily. sounds like power isnt an issue in that case, so I'm stumped. Checking for the 1.10V signal is your best bet as it will at least indicate whether the chips are being fed the correct voltage to operate (if they are given voltage but refuse to run, it at least narrows the issue. I did an RMA before on my first auction unit because the first section of my secondary board had no 1.1V signal from the TPS53355 chip, and as a result the entire chain (all 4 sections) would not function or be detected. Bitmain did an excellent job on the RMA and reimbursed me fully, even for the outrageous costs of shipping to china (seriously - how does it cost 1.5x as much to send a single PCB without heatsink to china as it did for them to ship the entire antminer to canada??) alternatively, do temps seem to be any kind of issue? it may be worth checking hte tension of the hex screws holding down the pcb to the heatsink. if thermal contact is poor it may be possible the chips overheat and switch off very quickly, but i dont think this is the case |
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the 100TH mine (now around 520TH) offers 1GH per share at about 60% the price of CEX.io, can be sold at any time (smaller orderbook though), and equipment is constantly being added.
you are investing in a mine operation rather than a single GH. CEX.io sucks for mining, only profits anyone can/will make is from buy low/sell high, not the actual mining income
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GHash.io's private farm is likely in excess of 1 PH/s. They would be the only ones that have that kind of privately controlled hash power at this time.
my understanding was they only had around 300-400TH? ps: the 72TH / 100TH mine is now roughly 520TH |
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Ok, well, I guess I found the source of the problem - the left side (aka blade #2) on that unit is bad. I had the unit on by itself on the same PSU as the fully working unit. Yes I did disconnect the other unit entirely. The faulty unit was all by its lonesome. Left the miner cool for a few minutes, powered it on - the same xxxxx on the second module. I tried powering just the faulty blade alone, but I guess the first blade needs to be one as it seems the controller board is fed through it so the unit will not power on fully without the "master" blade.
ASIC# says 16 for the faulty blade, so half of the chips are not functional, although if you go by counting x's and o's more than half are throwing errors or non functional.
xxxxxoxo xoxoxoxo xxxxxxxx xxxxxxxx
Swapping the PSU at this stage would be a pointless exercise.
so you are running a single antminer on what PSU? (brand, model, wattage, etc) alternatively, use a multimeter and check the volatge on the bad board. to do this:red (+) probe goes to the bottom connection of the large grey cube-shaped inductor (there are 4 of these per blade, test on all 4 on the bad side please) black (-) probe goes to any of the small copper dots on the board marked with 'GND', or to the GND terminals for your PSU cables you should see 1.10V on all 4 inductors. if not, it narrows down the possible sources/causes of the problem. |
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I've looked forward to this! I'd be interested in buying one (silver coin in the private-key version). Would love a PM with your latest updated price for this, quoted in BTC.
Would like to know this as well. titanBTC.com guys, come on.... prices are in fluctuating USD, and are roughly 1.12-1.18 BTC for a brass coin depending on the exact bitpay rate when you buy |
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Sushi, is there a way to identify and differentiate between the two blades. For example, which one is chain one and which one is chain two. Are the blades labelled or is there some logic followed like for example chain one being the left blade and 2 being the right..etc
the string of 'x' or 'o' that includes a fan speed and is the upper of the 2 is the board that the control board is attached too. The second line is the board opposite the control board/module |
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0.9 BTC, shipped to canada.
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Now half the chips on the second blade are dead:
36
xxxxxoxo xoxoxoxo xxxxxxxx xxxxxxxx
edit: this is after a power cycle
how do you have these powered? (PSU brand, model, wattage, and # of 12v rails and what cables you are using to run 12V) alternatively, turn off and let it cool for a few minutes before starting up again |
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i thought about this more... the guy is selling a piece of metal with a code on it that stores money from the purchaser... it's like going to Cartier and buying a nice leather wallet and putting your credit cards and cash into it before completing the purchase of the wallet.
Did Cartier engage in money transmission?
Basically now EVERY COMMERCE TRANSACTION is money transmission?
I'm guilty I guess, I transmitted some money to the local coffee shop for some coffee. Please arrest me.
This is very apt. Casascius pieces are wallets. Part of the payment goes in the wallet. If the invoices were itemized as such, then it would be about the same as you describe. I can't see how this is money transfer unless the wallets are going directly to persons other than the purchasers. It is a product sale. This registration requirement ought be challenged, even if you are also complying for simplicity's sake. It is more like buying a leather wallet online that happens to come with 10 crisp $100 bills in it, and paying $1000 + the price of the wallet. I can see where it presents issues, but i can also see that there must be room for more clarity |
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How much per coin price?
who test this coins in practic?
they have a website. the website has prices. it also has a FAQ. PS: why are the coins priced in $? This doesnt make much sense wince the $/BTC price does not always reflect in the $ price of a TitanBTC coin. for example: at roughly 8am EST on the 19th: 1.06 BTC per brass coin at roughly 8pm EST on the 19th: 1.18 BTC per brass coin at 11:30 EST : 1.15BTC each ps: i bought one at 8am  |
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i'm still not sure if my concern was fully answered; what makes this board design work when the H-board string design ended in molten plastic and scorched PCB?
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Bogart
Hes (SVK) asking can two miners or better to say two PDU be powered from single power elctricy socket (AC 220 or 110V)
I say yes, it can.
I suggest to use multiextension power socket cord with protection and fuse.
Exactly  I have 220/240V elec. connection(normal voltage). Each miner has its own PSU CX750M and each blade has its own PCI 6 pin cable. I was worried if two miners are not too much for one wall socket. Thanks everyone for a help naw. a fridge or microwave can easily pull the same 1500W |
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I have 2 antminers each stable at just over 200GHash.
make me an offer. I would want at least 0.15BTC per 24hrs per machine. must be paid up front, or use escrow. (i wont just point my hashrate at your pool account for free!)
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your image format is wonky, but looks nice whats it capable of on USB2.0 vs 3.0? ~1.5GH vs 2.5GH? |
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New Factory Default Reset ButtonPredd and hold down this little bitty black round switch for at least 3 seconds while AntMiner is powered on.  just a heads up - the ip on that antminer should be 192.168.2.13 - the leading zero is not required, and you will not find the miner if you are looking for the ...013 IP |
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