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One of the key value propositions of any cryptocurrency is decentralization. Bitcoin, Ethereum, and other cryptocurrencies are unique because there is not one organization that verifies transactions. Instead, transactions are verified by a network of miners. Anyone with a computer can participate in mining at least one cryptocurrency, but it is difficult to make a significant amount of money from mining unless you have at the very least a single high-powered gaming PC.

This post is less of a guide and more of a high-level overview of some of the concepts and considerations involved in GPU mining. In order to mine, in general, you will need a graphics card with more than 2 GB of memory, basic knowledge of how to use the command line or willingness to learn, and an Ethereum wallet or a wallet corresponding to whatever coin you are mining.

After choosing the graphics card, mining software, and pool, mining Ethereum is actually pretty straightforward. If you want some help with these prerequisites or a more detailed guide to getting started check out the Ethereum Mining Wiki. With mining, the details of how to mine and the best strategies are constantly changing, so if you want to get into mining be prepared to figure some of the details out for yourself. It probably helps to understand to some extent how cryptocurrencies work and to keep up with the latest trends in the market.

The most obvious benefit to mining is to make a profit. GPU mining is a unique type of investment that requires a relatively low up-front investment in time and money to get started. After that your computer or mining rig will generate a high rate of return without you doing much at all. If you are looking to invest more than a few thousand dollars you are out of luck unless you want to rent or buy a dedicated property for mining, and hire an electrician.

Even before that, you may be reluctant to have a monster computer with multiple GPUs generating lots of excess heat and noise in your home. What this means is that GPU mining can be a great investment up to a certain amount before it loses its appeal.

That is if all of the parameters were to stay the same which they won't so it is an extremely rough estimate. So for me at least investing in one card was a no-brainer. In addition to the profit that you can generate from mining, mining also helps contribute to Ethereum or the cryptocurrency that you are mining which I believe is a positive force in the world and worth supporting.

Outside of ETH, a miner could mine Curecoin and help the world by folding proteins, or mine Primecoin and help the world by finding prime numbers. There are also benefits to learning about the technology. I think that because you can hit a ceiling so fast on the amount that you can invest in mining, it is only worth it if you believe in these less tangible benefits to some extent and you are interested in the technology behind it.

On the other hand, if you already have a powerful home PC that you use for gaming or VR, then it is not going to hurt to have it mine at night and while you are at work. Not all cryptocurrencies can be mined profitably with GPUs. In the earliest days of Bitcoin mining long before I knew about Bitcoinpeople could mine thousands of Bitcoins with their CPU alone. At some point, someone wrote a program that allowed miners to mine Bitcoin with their GPUs which allowed them to significantly increase their hash rate.

Eventually, lots of other cryptocurrencies were designed that chose to use different hashing algorithms which could not as easily be mined with ASICs. For example, Ethereum uses a different hashing algorithm that requires lots of memory.

In addition miners have to execute smart contract code in order to verify blocks. Finally, with Ethereum switching to proof of stake soon, it would not make sense to design an ASIC that would work only for the next year or so. With this switch from a proof of work consensus algorithm to a proof of stake algorithm, there is a very small window of profitability left for mining ETH.

Once that switch is complete, GPU miners will have to switch to other coins. Fortunately for miners, there are plenty of other coins that can be mined with GPUs. It is likely that GPU mining will be profitable for at least the next few years. Of course miners will have to upgrade their GPUs every years or so to stay competitive because of the Law of Accelerating Returns. In the long term, I think proof of stake will become the dominant consensus algorithm and more cryptocurrencies will use proof of stake except for the ones where the proof of work algorithm provides some useful result like Primecoin and Curecoin.

This is because proof of stake is more secure and uses less electricity then proof of work. When choosing mining software I wanted to use one of the official Ethereum clients so that I could trust that the software did not contain any hidden malware, and to ensure that it did not charge any fees. For example, the official cpp client includes this text in their Readme:. The support for GPU mining has been dropped some time ago including the ethminer tool. Try using the fork https: To use Genoil you need download a binary from the releases folder in their repo, not the zip on the releases tab in Github.

I tried mining with Genoil and got it running fine, but was not able to find any shares within an hour. While troubleshooting the problem, I found a Github issue that suggested it may be an issue with the latest AMD drivers.

One of the replies recommended switching to Ethminer because it is more up to date. I am still not sure what caused the problem, or if I was just unlucky, but when I tried Ethminer I was able to successfully find shares. Ethminer is a fork of Genoil which seems slightly more active in terms of development.

I downloaded the latest version and was able to successfully get it to mine. I am now comparing my results against Claymore's Miner which is the first miner that I used for a few weeks.

I recommend Ethminer because it charges 0 fees, is open source and seems to have one developer who is actively making commits to the project. Claymore's miner is a bit easier to use, but the shadiness of the app makes me want to use something else. It seems that this is a mining client associated with Nanopool.

I was hesitant to use this miner for a number of reasons. Fist, the code is not open source. The Github repo belongs to Nanopool and when you look at their website there is no information about whether a company or individual owns it.

The fact that it is closed source and seemingly developed by a person who does not want to use a real identity is slightly suspicious. Another shady thing is that apparently, Windows Defender recognizes it as a virus. From the Claymore Readme:. Windows 10 Defender recognizes miner as a virus, some antiviruses do the same. Miner is not a virus, add it to Defender exceptions.

I write miners since Most of them are recognized as viruses by some paranoid antiviruses, perhaps because I pack my miners to protect them from disassembling, perhaps because some people include them into their botnets, or perhaps these antiviruses are not good, I don't know. For these years, a lot of people used my miners and nobody confirmed that my miner stole anything or did something bad. Note that I can guarantee clean binaries only for official links in my posts on this forum bitcointalk.

If you downloaded miner from some other link - it really can be a virus. However, my miners are closed-source so I cannot prove that they are not viruses. If you think that I write viruses instead of good miners - do not use this miner, or at least use it on systems without any valuable data. Despite all these red flags, I decided to use the software at first and accept the risks. Also, the software seems to have an advantage over competitors. It is able to mine two coins at once because different hashing algorithms used by different coins utilize the GPUs in different ways which allow more than one coin to be mined at the same time without hurting the profitability of the other too much.

However, I have not gotten dual mining to work without crashing. It was at this point that I decided to give Ethminer and Genoil a try. A really interesting mining program called Nicehash is something else I would like to try. It sounds like it runs a bunch of profilers on your computer then automatically switches to mining the most profitable coin based on your hardware and the crypto market. You then get paid in Bitcoin for your hashing power. I am happy with Ethminer for now, but will probably try Nicehash after Ethereum switches from proof of work to proof of stake.

Etherchain has a nice pie chart of the top ETH miners. I went with Nanopool in the end because it is hosted by the same developer of Claymore which is the first miner I got working. The Claymore configs have the pool addresses setup to mine at Nanopool. You just have to add your address, email, and a name you choose for your "worker". It seems simple enough to switch to a new pool if I wanted, but this was the easiest way for me to start out. A cool thing about Nanopool is that they have a public API, so you could build an app or website to monitor your "workers" while you are away.

Their own website does a decent job of displaying stats as well, and will even send you an email if your miner stops.

I don't know if this is a big deal to have a greater network latency, but just in case, I wanted to use something with servers on the east coast. Alpereum was another one recommended on Reddit a few times, but it shut down now. Smart Pool is a decentralized mining pool, that is in development that I am looking forward to trying out.

One of the cool features of Claymore's Miner is that you can dual mine two coins at once. When I tried dual mining, I chose to go with Sia because they have offer cloud storage that is 10x cheaper than their competitors like Google and Dropbox, which I find pretty impressive. The Dual mining is supposed to work a different part of the GPU so that neither coin will see much of an efficiency hit.

It worked for awhile and then my computer started crashing so I went back to mining just ETH. After I switched back to just ETH, I was able to mine continuously for several days in a row without any issues. With mining there are a lot of things you can do to optimize profits. You can download drivers that are more efficient for mining than others, overclock your GPU, try different mining programs, try different mining pools, and try mining other coins.

In the end these optimizations will help, but there are diminishing returns on your time. That is why I don't stress too much about having the perfect setup. The consensus algorithm for Ethereum is going to switch from proof of work to proof of stake soon. A simplified explanation of proof of stake is that instead of miners verifying transactions through mining, you have validators who deposit an amount of ETH for the right to validate transactions.

They risk losing their stake if they violate the rules of validation set by the protocol. Proof of stake is the superior consensus algorithm because it is more secure than proof of work, and uses much less electricity.

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With these settings, my API only grants the Lending Bot with permissions for remote management of setting the interest rates and putting on the loans. Bitcoin. The second technique is market making, where the fluctuations in the buy and sell price in an exchange are utilized to make profits by constantly placing buy and sell orders near the limit.