Depends on how successful it is and the what the coins price ends up being. When Zcash first launched late last October it stole away some hashrate from Ethereum for about a month, but most of that went right back when it started to lose profitability.  Expect the same thing to happen here, but again it needs to be profitable to mine in the first place for that to happen.

I believe Satoshi to be alive and well, but I heard he now spends his days combing through landfills looking for a certain lost hard drive he once possessed.

I might be kidding about Satoshi, but there was this guy who did just that: https://www.theguardian.com/technology/2013/nov/27/hard-drive-bitcoin-landfill-site

He lost 7,500 Bitcoins, which today would be worth close to $375,000,000 ($375 million).

You still need to pay for your equipment. Even with free power the ROI times are stretching into the 8 month territory, see my post above. So the only way your scenario works is if you have already paid for hardware and free electricity.

Of course this neglects the lost opportunity costs which means you might be better off selling your equipment now when you can still get something or it then 6 months from now when all mining is basically dead. There is also your time to consider to manage and keep the rigs running, so really nothing is free. If it takes you 4 hours a week to manage a couple of rigs you could instead be working that 4 hours at a job and probably making more money.

Lol, you newbies really haven't a clue and its BS posts like this that keep new people buying in. Maybe 6 months ago you could figure on a 3 month ROI, now it is closer to a year, and that is if you have cheap power. One of the most efficient cards there is in terms of hash performance versus wattage is the GTX 1060. You can get 25 MH/s (ETH) for about 80 watts per card. Even with 6 cents per kWh power costs you are barely earning $0.91 a day which will take you 274 days to ROI, assuming everything stays constant, which it won't. Even if you have free electricity you are talking 250 day ROI periods.

So we are actually talking about 8-9 months ROI IF and that is a big IF everything were to stay the same. But things are constantly changing, hash rates, difficulty, and a coins price are going to fluctuate so it is unlikely to stay constant over such a long period of time. What is more likely is profitability will continue to dwindle and turn that 8-9 months ROI into 16-18 months or never.

Maybe once people realize this and second hand hardware starts to flood the market, also putting pressure on retail new prices to come down, will it make sense to buy hardware again. The 1060 I referenced above retails for around $250 (for the 6 GB version), maybe once that is selling for $125 on sale would it even remotely make sense to get back into buying hardware.

Try this in your bat file:   miner --server zcl.suprnova.cc --user serbking97.Kopac2 --pass x --port 4042  

Leave off the cuda-devices, intensity and the fee parameters for now just to see if it works. If it does work you can add back any additional parameters you want at a later point. At first just keep your bat file as simple as it can be to get going.

Also, get rid of all the setx lines above your bat too as they are mainly for AMD cards. If you do have a AMD card you should be using a miner like Claymore's Zcash instead:  https://bitcointalk.org/index.php?topic=1670733.0

If that is the case (you do have a AMD card) you will need to use this in your Claymore batch file:    ZecMiner64.exe -zpool ssl://zcl.suprnova.cc:4142 -zwal serbking97.Kopac2 -zpsw x -allpools 1

Interesting you did not include any options below $4500 in your poll. There very well could be panic around the time of the fork driving the price quite a bit lower. It is only fairly recently we have been treading above that $4500 mark.

Predicting an eventual price of $10k for Bitcoin isn't that big of a stretch anymore. Back when Bitcoin was struggling to get past $1k it would have been a 10x increase back then to get to the magical $10k, so it might have seemed more unrealistic of a number for many. But now that it has flirted with $5k a couple of times, it is only a 2x increase. While the nice round number of $10k might be some sort of psychological level, from a pure mathematical perspective it is more incredible that bitcoin grew to $5k from trading at only a few cents each 7-8 years ago. So expecting another doubling in price isn't really that farfetched considering Bitcoin's history.

Mini cards have the same internal guts, GPU core and memory so they can be pushed just as hard as the full slot cards. The issue is less heatsink surface area and one less fan to blow over and cool off this reduced surface area. This leads to a situation of more heat to deal with.

Once way to deal with this increased heat is to run the cards at slightly slower clock-speeds and voltages, which will mean they will be slightly less efficient than their full sized counterparts. The other way is to run them the same (voltages and clock speeds) of their full sized siblings but to direct external airflow right at them. This may mean a box fan or some other airflow stream to get rid of the heat.

So basically the minis can be a good deal, just keep in mind you may need to be a bit more creative in removing heat and getting more cool air to them. In the OPs case, I think 40€ less per card savings will more than offset the cost for an additonal box fan or two.

It really doesn't as the poster you linked is relying more on wishful thinking than facts, and like many others has little to no understanding of how the ecosystem works.

The number of ETH rewarded per block is going down from 5 to 3, however the average block times will also go down from around 30 seconds to the 15-20 second range. This means on average we go from 10 new ETH per minute being generated to 9-12 ETH /min depending on the exact block-times. So in reality it will end up being a wash if not even a slight increase on coin issuance.

Also the new issuance or inflation really has a diminishing effect over time considering there are already over 95 million ETH in existence, so adding another 14,400 per day is only 0.015% being introduced daily. So again, the inflation is not really being substantially reduced nor is is being substantially increased. The price will continue to be effected more by other factors than it will by inflation.

As far as profitability, even though in general coin issuance will remain close to the same, overall network hashrate and thus difficulty continues to hold steady or even slightly increase. So while the price remains stable, mining profitability continues to slowly decline every day. The only way mining profits would double would be if the price suddenly doubles again, going to $600. However, this will be short lived as once again everyone will be adding hashrate thus reducing the overall mining profitability again.

It is pretty much a viscous circle and in the end no matter what happens the mining profits will usually stabilize at just above production costs, meaning eventually you will make maybe 5 cents a day per card after all costs are factored in.

GPU temperature is the most important factor to consider and you will want to keep that right around or under 70C for sure. The fan speed only becomes an issue if you need to maintain 80-100% all the time to keep your GPUs at or under 70C. If they spin up once in awhile it is not that big of a deal, but if you are running your fans at 100% all the time they are going to quickly fail and will need to be replaced. If this is the case you will need to try to increase the separation of your GPUs from each other, relocate your rig to a cooler environment, or introduce more airflow into the space. The later can be achieved simply by adding a box fan as someone posted above.

Usually all this comes down to good airflow in and around your rigs. While box fans are good for one or two rigs, if you have many rigs in a space (room, garage, shed) you will need to exhaust the hot air out of the space in a efficient manner. I have rigs setup in my garage which gets to over 100F (38C) in the summer, but I also have good airflow so the rigs stay in the 60C range and GPU fans are running under 50-60% most of the time.

Bah, they are both perfectly capable PSUs. While EVGA outsources their manufacturing to Super Flower, Corsair uses Seasonic, which is no slouch in the PSU industry on its own.

Corsair also consistently ranks high in JonnyGuru testing as shown here with the Corsair RM1000x receiving a perfect 10. http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story6&reid=449

I love EVGA too, but there is no need to preclude another perfectly good brand just because of some bias. I have owned and will continue to own both brands. I have also had to RMA power supplies from both brands, with both offering excellent customer service and a no hassle RMA process.

In reality you really cannot go wrong with either brand, just get whichever one is on sale at any given moment that suits your needs.

One final note, once you start looking past 5-6 GPUs you really should start to consider using a server PSU with a breakout board, as they are better suited for large rigs and can deliver the wattage you need from one unit using 220V input. Their pricing is also very competitive with the higher end consumer PSU's, especially considering the fact you would often need utilize two consumer PSUs once you go past 6 GPUs.

Have you tired any other pools besides Suprnova after the power outage? Also, did you reset all of your network equipment, switch, router, cable modem, etc afterwards? From the errors you posted it seems more like a connection issue. Can you establish other network connectivity with the rig, such as visit a website to make sure it can connect to the Internet?

Ethereum seems to be struggling to decide if it wasn't to stay above or below $300 right now. For the past month or so Ethereum was almost a carbon copy of Bitcoins price chart, only scaled down. The past few days this has decoupled a little bit as Bitcoin was climbing by hundreds towards its all time high Ethereum was actually going down slightly. Now that Bitcoin is pulling back a little Ethereum is also going down.

It seems that there is no correlation at all anymore so it may not be a good time to get into Ethereum right now until the bitcoin fork happens. As has been mentioned, interest in Bitcoin is now at a high because of the potential for free BTG coins due to the fork.

There is always a chance:  https://www.youtube.com/watch?v=nFTRwD85AQ4

But just like in the move, just not a very good one. If you have low cost electricity or you are trying to run them at work you might make a few coins, but for home use they are not the most optimal choice.

The last thing I read on the subject was Ethereum was delaying the switch to PoS for at least another year. They gave no exact time table but said generally it would probably be at least a year out. So this fact contradicts your "convenient" timing theory as the events will be at least one year apart.

As far as mining, it will depend on the price and profitability ratios, as it does for any coin. If BTG is profitable to mine it will pull some hashrate away from other coins, but that hashrate will snap right back to whatever coin is the most profitable at any given moment. You can see the same thing now with Bitcoin and BCash, all the diehard BCash supporters who claimed they would mine BCash even at a loss switch back and forth all the time and are even abusing the rapid block adjustment mechanism in BCash just so they can make more profit.

You just got to experiment on your own as each card is going to be different. I have some GPUs that will run fine at -cvddc 875, others need a higher voltage such at -cvddc 900. I even have a few cards that need even more voltage going as high as 950 mv. You may even have to adjust individual cards within a rig, which is fairly simple as values can be comma separated, so you might need do something like: -cvvdc 875,875,900,950,875 for a five card rig with a couple of power hungry cards in the mix.

Trading is a good way. Setup an account on an exchange and buy a little of a cryptocurrency you are interested in. Study the charts and try to buy in a dip of a popular coin. Once you bought a coin, set a sell price a bit higher enough to offset your trading fees and to make a small profit. Rinse and repeat until you grow your stack. Just remember to buy low and sell high.

You just need to point to the Zclassic pool and use a Zclassic wallet for your worker ID just as you would for Zcash. They both use the Equihash algorithm, so any miner capable of mining Zcash can also mine Zclassic. If you use Claymore's Zcash miner you may also need to add -allpools 1 to the bat file. For the Suprnova pool, use:  stratum+tcp://zcl.suprnova.cc:4042

I feel two ways on this. I think BTC will continue to be the main Bitcoin, but I do like the idea of BTG going back to GPU mining.

I also agree that the Bitcoin mining consolation by big players has brought us to this point and it would be nice to see the hash-rate distributed out to more common people. I know that the rich and powerful still can control large GPU farms too, but at least the hardware is available to everyone unlike the ASIC market where large orders get served first and everyone else gets the scraps months later after most of the profit opportunity has been used up.

Tradingview https://www.tradingview.com/ is a good cryptocurrency charting site, so is CryptoWatch https://cryptowat.ch/  Both have historical data and list many different exchanges. You can even publish the charts you create on Tradingview so you can link to them from other sites.