60

Generally, it's not worth your time and effort to mine at home! (Some exceptions may apply.) Age of ASIC mining CPU mining has been unprofitable since 2011, GPU mining just slightly later. Today, ASICs rule mining. The Bitcoin network has more than 1.7 Ehash/s (Oct 2016) now which is 1,700,000,000,000 Mhash/s. Your graphics card will be running full ...


15

You're using the wrong hash algorithm for Bitcoin mining. Bitcoin uses SHA256d (d = double), but cpuminer (at least the version 2.3.2 on my system) defaults to scrypt (for Litecoin) instead: -a, --algo=ALGO specify the algorithm to use scrypt scrypt(1024, 1, 1) (default) sha256d SHA-256d Slush's pool ...


11

There are several options for Mining Bitcoins some of these are no longer profitable, but for the sake of being thorough here they are in order of efficiency lowest to highest: Methods CPU Mining (minerd) GPU Mining (cgminer, bfgminer) FPGA Mining (Custom software - https://github.com/fpgaminer/Open-Source-FPGA-Bitcoin-Miner) ASIC Mining (cgminer, bfgminer,...


11

Any CPU can still be used to mine Litecoin, although much less effectively as a modern AMD GPU could. Mining with a CPU gives you very bad hashrate therefore I wouldn't recommend it. Even a high end CPU will not give you the hashrate of a mid range GPU. You should use a graphics card (GPU) to mine litecoins or switch to another coin Additional Information:...


11

It's definitely not against the law. It might be breaking the terms of service (ToS) but there's really no reason why any dedicated server hosting provider wouldn't allow you to max out the CPU. I wouldn't do business with them if they limited that. However, you need to read your hosting provider's ToS. They might forbid certain applications like IRC servers,...


9

Can i do mining with a normal PC? Yes, you can. I don't have too many expectations. Maybe 0,1 in one week? No, not possible. You will effectively compete against all computational resources on Earth, that are now cracking this nut. If I can estimate, a humble home PC will produce around 1 - 100 MH/s, based on CPU or GPU mining stats. This range covers ...


9

The bitcoin community would have to decide that they don't particularly care about having significant security anymore. ASIC-resistance weakens the security of proof of work chains because it eliminates the need to invest in a chain in order to attack it. Someone who owns lots of expensive ASICs will not want to let them be used to attack the chain they are ...


6

It is likely that neither is profitable for you, because ASIC miners are alot more effective than any GPU mining, which in turn is alot faster than CPU mining. But don't take my word for it. This hardware comparison wiki is a good source to make an initial estimate. There is one entry listing the combination of an A10 and a HD7660G GPU, claiming to get 105 ...


6

Here, a nice explanation (even if the post is old) http://www.righto.com/2014/02/bitcoin-mining-hard-way-algorithms.html


6

Litecoin is the 2nd most popular currency in the same family as Bitcoin, and: It is based on the Bitcoin protocol but differs from Bitcoin in that it can be efficiently mined with consumer-grade hardware. Litecoin provides faster transaction confirmations (2.5 minutes on average) and uses a memory-hard, scrypt-based mining proof-of-work algorithm to ...


6

To be honest, you came in a little too late. Mining is now done by ASIC's (Application Specific Integrated Circuit). These are chips (like the ones Intel and AMD make) that are only capable of hashing SHA-256. These chips are very limited (they can't run any other software), but can do what they were made to do extremely fast. An Intel 'universal' CPU can ...


6

Yes Erik, the mining feature is still built-in and you can check how many hashes your CPU can perform. Although it's pointless and you cannot earn anything, it is still a fun experiment that people like to try. If you have a bitcoin core installed and synced with the network, you can just simply open the command console and type in and enter: setgenerate ...


5

CPU mining is DEAD. GPU mining is DEAD. Even FPGA mining is DEAD ! ASIC's ? Yes them still can be profitable. But..... ONLY if you can get your ASIC cheap. Here are the maximum prices you can pay for ASIC, and still have some hopes to get ROI in 3-4 month: 40+ GHs for 1BTC - if you get your machine TODAY 75+ GH/BTC - if ASIC delivered within 1 month 160+...


4

If you are after bitcoins I wouldn't even spend time on CPU or GPU. It is now difficult with specialized hardware (butterfly labs, kncminer ... ). You can have a look at cloud mining (cexio) as well it is expensive and you have to have bitcoins already but you can buy and sell GH/s and you can actually make more from trading than mining.


4

Yep there are three good options for CPU mining that I know of: XPM: PrimeCoin QRK: Quark PTS: Protoshare - very very new and exactly what you described. Google search those and you'll find plenty of info. Seems like there was a fourth but I can't remember it off the top of my head.


4

I would highly recommend using Ubuntu Server for this, as long as you know what you are doing without a GUI. Not having a GUI at all means smaller OS size and much less OS tasks. This translates into more power savings. If you are using graphics cards, a non-GUI OS will improve your mining performance. If using an ASIC/etc. you probably will not see ...


4

I wouldn't use them to mine. Since GPUs back then couldn't do arbitrary calculations, the only thing you can use are the CPUs. CPUs are relatively better at mining scrypt (e.g. Litecoin) than SHA256 (e.g. Bitcoin), so let's go with that. Based on the oldest CPUs listed (which aren't quite old enough) on Litecoin's wiki, I'm going to guess that each computer ...


4

Assuming that IsraCoin uses the Scrypt-Hashing algorithm as suggested in the comments on the question, I found this hardware overview table on Litecoin (which also uses Scrypt). The table lists a number of Intel Core i5 processors ranging in hashrate from 12 to 55 kHash/s. I.e. depending on what processor you have exactly and whether IsraCoin uses the same ...


4

Even on testnet the difficulty is sufficiently high that it will take you a long time to mine anything using cpu. (Lots of people testing ASICs, presumably.) Your best bet is probably Testnet in a box. Then you can cpu mine just by using ´setgenerate true´ in Bitcoin Core.


3

try using stratum+tcp:// instead of http:// protocol. ./minerd --algo scrypt --scantime 33 --url stratum+tcp://[server]:[port] --userpass [username]:[password] --threads 1 --retries -1 -P works pretty well for me right now. minerd is from http://optimate.dl.sourceforge.net/project/cpuminer/pooler-cpuminer-2.3.2-linux-x86_64.tar.gz


3

CPU is virtually useless for scrypt based coins like litecoin, stick to GPUs, for now. Here is a comparison of the top GPUs you can buy for mining, with user submitted settings. http://coinpolice.com/gpu/


3

This is a great tutorial for that, if you are familiar with python: https://github.com/philipperemy/my-first-bitcoin-miner


3

Bitcoin mining is essentially just the repeated calculation of sha256 checksums. Given that sha256 is a fairly simple algorithm that uses only basic integer calculations absolutely any processor core should be capable of churning out sha256 checksums very quickly and any added complexity beyond the basic instructions required for sha256 is wasted. To that ...


3

The original question was [sic] "What is the fastest CPU miner that I could use". Based on the answers, it seems, that everyone by default went to cpuminer/minerd. I use it also. However... bfgminer (all except the latest version) has the ability to be used as a cpu miner. I have not been able to optimize mine yet but I do know that it is an incredibly ...


3

Warning: doing what is described below will not gain you any coins at all with exceedingly high probability, and just burn electricity (see other answer). Bitcoin Core still has a built-in miner. It is not efficient, not optimized, does not use any special hardware (like special CPU instructions, GPUs, FPGAs, or ASICs), and is only useful for testing on ...


3

Is Bitcoin mining profitable on a 8 core, 32 GB server with unused capacity? No. I used http://www.coinish.com/calc/ but it does not have anything near to my hardware specs. Expect 2-4MH per core. 38MH/s for all eight is all but useless. Maybe 80c a month, if that. with 1BTC=$1200+ the scenario must have changed a lot ? No. Secondly, can I use ...


3

If those are reasonably decent CPUs, they could be able to mine up to 20 Mhash/s each. Together, that's 20 Ghash/s, or the same as a small ASIC, and using massively more electricity. As of december 2013, with the difficulty at 707408283, this means that you'd have approximately a 0.85% chance per month to win a block (worth 25 BTC).


3

The difficulty is not really 1. testnet has a "20-minute rule": if no block is successfully mined within 20 minutes, the difficulty drops to 1 until a block is mined. Then it reverts to its previous value. However, it appears that getdifficulty returns 1 whenever the most recent block was difficulty 1, even if it was accepted under the 20-minute rule; ...


3

The times when one could mine Bitcoins with a laptop or graphics card are long gone. You would never even cover the cost of the electricity used. Bitcoin mining is done with ASICs now.


3

GPUs are obsolete for mining. You won't get any reward worth even close to your electricity and hardware degredation cost. This has been true for over a year at least. CPUs are 1000x more wasteful. You're too late to the home-mining game.


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