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It really does look like downward trend is causing less hash:
Bitcoin Difficulty: 47,427,554,951
Estimated Next Difficulty: 46,444,875,248 (-2.07%)
Adjust time: After 612 Blocks, About 4.4 days
Very interesting I wonder how many miners are turning on/off with difficulty changes.
Currently a little under 270 on price.
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I miss these. I had 60 running at one point in my life.
At this point they are good for learning mining, but are considered a novelty. They are so low power sadly you will not make your money back.
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Spain is 220V, so at ~880 Watts you get just enough for an underclocked SP20 for example. The SP20 also has the advantage that it has temp sensors, the hotter it gets the slower it runs. If it gets colder again (i.e. at night) it ramps up again.
Just make sure the agreement is to use those "4 Amperes" for 365/24/7.
I would agree with underclocking. If it is 880 watts that is not much for more than one modern miner. And does not leave much room for cooling if it needs it. |
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I have 4 Cointerra 1.6 TH units. And plugging it in resulted in it exploding. The capacitor exploded.
So is this the first time you have plugged them in yourself? |
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Thanks. Accordingly I have given up on the idea of mining on a sailboat. Another opportunity has just come up for me and I will start a new topic for that.
Your sailboat will thank you. I tried to help in other idea. I think you are far better off out of the boat. |
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Just rented a well ventilated storage room and discovered I have 4 amperes of free electricity. Its in Spain. 30 degrees celsius Max in summer and 20 max in winter. Wifi using Alfa Tube 2H or whatever is recommended here. Would get disconnected a few times a day I guess. There is no electric meter and I am allowed to use anything up to the 4 amperes. If it goes over the supply is cut off and I must request at the admin office to have it turned on again. So far, I have seen that a 750 Watt power drill works fine so I have at least that amount. I could visit there a few times a day.
What equipment can I get? I presume a fan would be necessary in Summer so perhaps I could get a miner capable of a summer and a winter settings.
I am not sure what you mean of 4 amperes. Do you have 4 breakers is that what you mean? (Standard in 110 is 15-20 amp breakers). Depending on if you have 110 or 220 will be a big factor. If i remember right to go to watts you need the amount of volts and amps to convert to watts. Yes you will need to be able to exhust the heat out or have some kind of AC. (Some miners run hotter then others). Just to give a example the SP20 says ambient of 0 °C to 35 °C it can run in. You could push it but I would not. Heat and electricity do not mix. Are you able to make modification to your room? Is there anyway you have to vent heat outside? |
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I have been running a c1 for about 2.5 months now. I can't seem to get the "Rej%" rate any lower than 3.5%. Its running with a Corsair T850M Power Supply and is set to normal speeds.
My nearest competitor that sort of reject rate on an s3 is .4%
Thoughts in advance?
thanks.
What pool are you using? I have 2 C1's running and both are far under a percent. And that is with pools switching from the DDOS stuff. I use WestHash and BAN. Only thing I can think of is if your using westhash as main, and on it's mining some coin that has a higher reject rate when mining through them. I know if you rent it through some places it can show for example blocks found, etc that BTC would never have (chances are) when mining certain coins. But for a straight BTC that is would be very high might try antpool or ghash on straight btc. (Antpool is battling DDOS right now but was a very good pool with for me low rejects). |
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Own investment
5k hardware costs
1k rewiring
250usd operation Cost per month Inc. Electricity
Electricity will be 20hours a day so I calculated month inkome per month at average 1200usd for approx. 22th/s
So I can operate as long as I can make more then around 400usd a month. In it for longterm bitcoin garnering aswell.
I noticed you said "20 hours a day". Why only 20? Most mining operations are 24x7 full time operations. Virtually all the income calculators would have assumed 24 hours/day in terms of mining. I will assume that you can get good Internet access where your are going to set this up? Stopping and starting miners for 4 hours out of the day may be inconvenient and not entirely smooth every day if you aren't on site. This is just a guess. But I know of a data center that was built in very very low electricity. But during peak times they could lose power. But even though not 100 percent stable, it was cheap. But I have no idea on Kurdistan infrastructure. |
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I have been running a c1 for about 2.5 months now. I can't seem to get the "Rej%" rate any lower than 3.5%. Its running with a Corsair T850M Power Supply and is set to normal speeds.
My nearest competitor that sort of reject rate on an s3 is .4%
Thoughts in advance?
thanks.
What pool are you using? I have 2 C1's running and both are far under a percent. And that is with pools switching from the DDOS stuff. |
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Most safe way is direct from company. You will want to use a established company, and not pre-order.
Any 3rd party selling is going to have risk. As far as what you can do is either credit card protection, or paypal buyer protection. Either one if no product is shipped (and you report it in timely manor) there is a decent chance you get your money back.
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My friend can you read?  In the Netherlands electricity is 20 ct/kwh. At the location that I am planning to put the miners electricity is 2 ct/kwh approx, but we have agreed on a fixed amount with the electricity provider, of 100 usd a month for the whole 22th/s opperation. I suspected you were in Netherlands from your said you were purchasing miners there. You never did say country you were in. If you got it for 100 usd yes that is extremely cheap electricity for that amount. |
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I bought one of these from a Chinese reseller on Alibaba. The power supply died and I can't find a replacement anywhere. The P/S has no 24 pin connector. Just a 8-pin to the PCB and then 6 6-pin connectors to the mining boards. Now that selling miners is hard my reseller stopped offering them and won't respond to me. I need to buy a replacement power supply jst like the one in the picture. Can anyone point me in the right direction?
you do not need that psu. looks like an evga 1300 g2 can replace it. the evga 1300 supplies up to 1250 watts no worries. It has six pcie connectors. what part of the world are you in? This PSU would replace it and be a upgrade. Assuming stock freq it should pull around 1100 watts. So a 1250 or 1300 would do it no issues. |
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I bought one of these from a Chinese reseller on Alibaba. The power supply died and I can't find a replacement anywhere. The P/S has no 24 pin connector. Just a 8-pin to the PCB and then 6 6-pin connectors to the mining boards. Now that selling miners is hard my reseller stopped offering them and won't respond to me. I need to buy a replacement power supply jst like the one in the picture. Can anyone point me in the right direction?
I don't like doing it but you can use two power supplies. I did this one a 1T dragon when it's original PSU quit. One hooked up to a few blades and controller board. And one just blades. Worked for month's. I don't think you will find a way around not having power it if it's the board I'm thinking of. |
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Yep not much more to go, also nearing 14 million coins generated Doubt it will have much impact on mining speed though but it seemed like an interesting note. 13,950,550 when I posted  I always wonder how many of those coins have been lost for all time, due to misplaced keys or corrupted hard drives, etc. This one surely looks lost https://blockchain.info/address/1111111111111111111114oLvT2Wow never seen one so full of 1's with money in it. If someone truly has that I would like to know how long they used vanitygen to make it. Or how ever they got it. |
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Chances are with the TRI-X it is great performer if it follows past ones. I miss the days I GPU mined. Had to go to all asics myself.
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Engineers are working on the issues continuously. This is a sad thing for us to say, but please set a backup pool outside Antpool while we are under attack. Any chance of an update bitmain? Couple of weeks of bad profit here. Couldn't take much for a five minute update!
Thanks for advice. It is sad to see a great pool being ruined by some DDOS attackers. I hope you guys can find a way to defeat these attacks. Just a idea have you thought about making more pool servers? If you make lets say 10 pools they would have to amp up DDOS attack to get all of them. You could even open in different regions such as US, UK, ETC. |
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The fastest, easiest, and most convenient way to get BTC is to buy it. You can spend the next few weeks "earning" some bitcoin dust, or you can have it this afternoon. Your choice.
Very true. If OP tells us his country we could help him with good ways to buy BTC. |
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-0.48% (at time of post) and price staying sub $300, would be nice to see a decline in difficulty and to break through the £300 barrier again or am I asking too much right now?
Won't happen. Either price will break $300 and difficulty will rise, or price will fall and difficulty will stay the same or go down. Yeah that's what the rational side of my brain thought at first but then I thought it would be nice to break through $300 and keep the difficulty down. It might happen, maybe if we see a 2nd wave of DDOS attacks With failover pools I think loss of mining power is small. Most don't use just 1 pool in their miners. Sure some do.... but they would not long with these attacks hurting pools. |
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Own investment
5k hardware costs
1k rewiring
250usd operation Cost per month Inc. Electricity
Electricity will be 20hours a day so I calculated month inkome per month at average 1200usd for approx. 22th/s
So I can operate as long as I can make more then around 400usd a month. In it for longterm bitcoin garnering aswell.
With 22 TH of A1 gear it sounds how are you making a profit at "Electricity is 20ct per kwh here" Assuming 22TH of A1 gear that is 22,000 watts approx. You would be paying approx 50 dollars a day in electricity. This is approx 1500 in electricity for A1's not 400. I see you making a profit of around 18.60 each day (at current rate). To pay for gear it would be 5000/18.60 = 268 day's to pay for equipment if difficulty does not go up. You add difficulty you will have a very hard time at 20 cent KWh. |
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I use Team Viewer and it works great. You need to leave your computer on while away and if your afraid of power outages then use a laptop so the battery will give a couple hours of backup for short outages. But I used to even reboot my computers with Team Viewer and it worked great.
TeamViewer is a great product for this. With it even if your IP changes your login can get to your house computer. Once logging in it would be like you are home and can access your miners on the network. If you decide to go the TeamViewer route I'd set a strong password to connect though. I've heard of people using the default 4-5 character password who've had their machines hacked into and coins stolen, if they keep crypto-coins on their PC unencrypted. I'd personally go the VPN route, for me it would be easier to manage my machines on my phone through the internet browser than through a TeamViewer app. You brought up something I forgot to mention. As a general rule don't keep a wallet on the computer with remote access. Have it to log into miners, but don't keep confidential/important documents on it. |
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