Build your own Ethereum Mining Rig, part 5: FAQ

In this fifth and final installment of our Ethereum mining rig guide, I answer some common questions about setting up your own rig, profit expectations, and mining in general. If you’ve read the rest of the guide and still have some unanswered questions, you might find what you’re looking for here.

Hit the “read more” button for the FAQ!

Build an Ethereum Mining Rig, part 5: FAQ

 General Questions

Technical Questions

Ethereum-specific Questions

Other

Answers

So how much money can I expect to make from mining, exactly?

This is the question that most people are interested in. The answer is fairly complicated, and changes daily.

Today, one ether is worth about $90. Last week, that same ether peaked at a value of nearly $100. A month before that, ether was trading at less than half its current value. The volatility in digital currency value is extreme—the price today could be very different than the price tomorrow.

On top of that, the difficulty involved with mining a coin is also changing constantly. Today, the rig depicted in our guide will produce nearly 5 ether per month. One month ago, it was producing at a rate of ~7 per month. As the popularity of mining increases (as it often does when the value of each coin increases), the time/computing power it takes to produce a coin increases.

You can answer the question for right now by using a calculator such as this one. If you’re building the exact rig outlined in the guide, then 150 MH/s is a good conservative estimate for speed, and 750 watts should be accurate for power usage if you undervolt and use an efficient PSU (make sure to plug in your own electricity rate, though). The calculator takes into account the current mining difficulty automatically.

At the time that I’m writing this FAQ, assuming you pay $0.10 per kWh for electricity, the calculator would tell you that you should expect to make nearly $400 per month from your mining rig. Remember to subtract 1-2 percent for your mining pool’s fee. Subtracting another couple percent for downtime and other unexpected issues is probably a good idea, too.

If the price of ether rises faster than the mining difficulty increases, then that profit figure will increase. If the mining difficulty outpaces the value growth of ether (and/or ether drops in value), then profit will decrease.

Since it is very difficult to predict the future, I’d strongly advise everyone reading this to treat mining as a hobby, and not a “get rich quick” scheme. Only invest what you’re comfortable losing, because losing is a very real possibility.

Why not just buy ether (or bitcoin, or litecoin, etc) directly, and then sell later at a profit?

If you believe that ETH is about to shoot up in value in the short-term, and you have a very high tolerance for risk, and you have some money that you won’t miss if it suddenly disappears, then this might be the best idea for you. Buying the digital currency directly enables you to get your hands on a bunch of it quickly, without having to wait for a mining rig to produce it for you. However, the “sell them later at a profit” part doesn’t always work out. =)

For most of us with a desire to jump into cryptocurrency, mining is probably the safer option (it’s more fun, too!). If you buy $1500 worth of ETH today, and tomorrow ether is suddenly worthless, then you’ve lost $1500. If you build a $1500 mining rig today, and tomorrow ETH is worthless, then you still have $1500 worth of hardware. You can sell it at a small loss, or re-purpose it (maybe try your luck at mining one of the other digital currencies, for example).

How noisy/hot are these rigs?

This is difficult to answer because it’s so subjective. An open-air mining rig with six RX 4xx/5xx GPUs in it will certainly not be silent. But a properly undervolted rig can be surprisingly quiet, especially compared to the previous generation of litecoin mining rigs (those old 7950 GPUs were noise & heat monsters!).

Using a free sound meter app on my phone, I measured the sound level of my test rig at 47 decibels (with the phone held about 2-3 inches away from the middle of the GPUs). From roughly 6 feet away, the sound level dropped to about 37 decibels, which I find to be completely acceptable. For reference, the sound level in an empty room that I subjectively consider to be completely quiet is 22 decibels, according to the app. If these numbers don’t mean much to you, this chart might be helpful.

My test rig contains a mix of four RX 470/480 GPUs running at a temperature target of 58C. The noise level could be reduced significantly by bumping the target up to 70C if desired (which would allow the fans to spin at a lower RPM), but it’s already more than quiet enough for me.

The heat that a rig produces may be more of an issue, depending on where you live. Most small consumer space heaters put out 1500 watts of heat. An undervolted 6-GPU rig will give off roughly half that, which is still a significant amount. It’s certainly possible to heat a small room with the heat from a single mining rig, but that extra heat can be a nuisance if you live in a warmer climate.

Ideally, you have someplace that you can tuck your rig(s) where they’re out of living spaces. Basements and garages are both good ideas if they’re relatively clean and temperatures don’t venture into extremes.

How do I convince my significant other that building a rig is a good idea?

You’re on your own with that one. Good luck! =) Anecdotally, I did convince my girlfriend to keep a litecoin mining rig in her apartment for most of 2013. She hated the noise (modern GPUs are much quieter), but she did make a tenfold return on her investment.

How do I turn my computer on without a case/power switch?!

So you didn’t opt to purchase a power switch, and now you’re sitting there staring at a bunch of assembled hardware, and wondering how the heck to turn the thing on for the first time. Don’t worry, you have a couple options.

First, check to see if there is a power button built right onto the motherboard. This is somewhat common nowadays, although many boards still don’t include them.

If you don’t have a power button on your motherboard, grab a flathead screwdriver. Now use the head of your screwdriver to temporarily short the two pins on the motherboard that the power switch would be connected to (if you had a power switch). Just touch the head of the screwdriver so that it makes contact with both pins for a brief moment. Your system should immediately power on (if it doesn’t, make sure that your PSU is plugged in, and the PSU power switch is in the “on” position”).

The first thing you should do at this point is enter the BIOS and change the power options to set your computer to automatically power on whenever power is restored. That way, you can use the switch on your power supply to turn it on and off going forward.

Why the Radeon RX 470 GPU? Why not a RX 480/570/580, or another video card entirely?

The Radeon RX 470 GPU is currently gives the best hashrate/watt ratio, and also has an excellent hashrate/purchase price ratio. It’s really the ideal GPU for mining, at least for now.

That said, the RX 470/480/570/580 are all very close performance-wise when properly clocked and undervolted via BIOS mods. In fact, the difference is so close that purchase price should probably be your primary consideration—buy whichever RX 4xx/5xx GPU you can get for the least money, as long as you plan to flash your GPU BIOS (I show you how in part 4 of my guide).

I generally don’t mention nVidia GPUs because they cost so much more than AMD cards. The GTX 1070 is a fine card for mining, with hashrate and power consumption numbers comparable to RX 4xx/5xx cards when properly configured. I don’t recommend it simply because it costs 2-3 times as much as an RX 470, and that has a tremendous negative impact, ROI-wise.

Can I mix different brands and/or models of GPUs in the same rig?

You can always mix different brands of the same model GPU in the same rig (for example, RX 470 GPUs made by MSI, Sapphire, and Asus).

You can additionally mix different models of cards together as long as whatever video driver you’ve installed in your OS supports all of them.

In Windows, you can mix RX 470 and RX 480 cards together with no issues, and you can also mix RX 570 and RX 580 cards. You’ll run into issues if you try to mix RX 4xx cards with RX 5xx cards, because they use different video drivers (it’s possible to make it work, but involves jumping through some extra hoops).

In Linux, I believe that all of the RX 4xx and RX 5xx cards share the same driver, so they should all coexist together without problems.

My own Linux rig runs a mix of different RX 470 and RX 480 cards, all different brands. I have an RX 570 GPU card running in another desktop that I haven’t tried dropping into the rig yet.

Why stop at 6 GPUs? Is it possible to pack more than that onto one motherboard?

Possible? Yes—I know some people have made 7, or even 8 GPUs work on a single motherboard.

I generally don’t recommend it unless you’re pretty savvy and willing to work through a lot of potential headaches, though. Generally, achieving 8 GPUs on a single motherboard is done via use of PCIe splitters (eg: something like this), and they don’t always work well.

7-8 GPUs also generally works best with two power supplies, and that ups complexity (and risk of hardware damage, if done improperly) a bit, as well. In addition, depending on which GPUs you use and how much you undervolt them, an 8 GPU rig may come quite close to the safe continuous load rating on a typical 15 amp household circuit (which is 80% of 1800 watts, or 1440 watts).

To me, 6 GPUs feels like the current sweet spot between maximizing GPU density and minimizing complexity/risk.

Don’t I need more than 4GB of RAM? A lot of other guides recommend more.

Nope—mining uses the memory on your GPUs, so you don’t need much system memory at all. You can get by just fine with 1-2GB of RAM in Linux, and 4GB is enough in Windows (you’ll need to bump your virtual memory settings up to at least 16GB though, covered in step 6 of my Windows guide).

I’m running with a single 1GB DIMM on my own Linux rig, and most of that memory is available while mining.

Why do I need a 1200 watt power supply if I’m undervolting? Won’t I only be using 700-800 watts with 6 GPUs? And is it worth paying so much for a high efficiency unit?

If you’re running six properly undervolted RX 470 GPUs, your “at the wall” power consumption should be around 750 watts. Which means that yes, it’s possible to run such a rig on a smaller PSU without issues.

The reason that I recommend a 1200 watt PSU is due to efficiency variance at different load levels. PSUs are generally most efficient when supplying about 50% of their rated maximum power (you can read a bit about ratings on Wikipedia here). So a platinum-rated 93% efficient unit may only reach that efficiency level when supplying ~40-60% of the unit’s maximum rated power. It’s not uncommon for PSUs rated at 90%+ efficiency to drop down to ~85% when operating near their limit (and also when delivering very little power).

Example time: let’s first assume that your rig needs 700 watts of power to operate (maybe 6x 110 watts for the GPUs, and 40 watts for the rest of the system—this is a fairly realistic number).

Now let’s first assume that you decided ~$250 for a platinum-rated 1200 watt PSU is ridiculous, so you opted for a $100 bronze-rated 850 watt PSU instead (which is still a fairly solid unit!). You’ll be pulling about 854 watts at the wall (700 watts / .82 efficient) with this setup.

Now let’s assume that you want to be as efficient as possible, but since you you know you don’t really need 1200 watts, you go for a $180 platinum-rated 850 watt unit—not realizing that its efficiency rating drops from 93% @ 50% load to 89% @ 100% load. That doesn’t sound like much, and at least it’s still significantly better than a bronze-rated unit, right? With this setup, you’ll end up pulling about 787 watts (700 watts / .89 efficient) at the wall.

Now let’s assume that you just followed my guide and bought the 1200 watt Seasonic that I recommend (platinum-rated units by EVGA, Corsair, and some others are all fine too—they’re likely rebadged OEM Seasonics anyway). Since you’re running the unit at only ~58% of it’s maximum, it should run very near its peak 93% efficiency. Which means this setup will pull about 753 watts (700 watts / .93 efficient) at the wall.

The difference between the first and last example is 101 watts at the wall. Assuming that you run your rig 24/7 and pay 15 cents per kWh, that’s a $133 difference in electricity costs every year! The “expensive” 1200 watt Seasonic pays for itself compared to the much “cheaper” $100 bronze unit in roughly one year of use (the Seasonic has a 7 year warranty, so the odds are that you’ll be using it for quite a long time).

If you want to measure your own “at the wall” power consumption numbers, I highly recommend that you shell out a few bucks for a kill-a-watt. They’re invaluable.

Can I utilize my mining rig for anything else while it’s mining?

It’ll make a great space heater in the winter. =) Oh, you mean application-wise.

The CPU, memory, and disk will mostly be unused while your rig is mining, but anything GUI-related will be pretty unresponsive. Applications that run in the background or over the network are good candidates, if you’re looking to get some extra use out of your rig. You should be able to run things like file servers and low-traffic web servers just fine without impacting mining performance.

How much of my internet bandwidth will my mining rig use?

Not much. Mine averages around 30 kb/sec when it’s mining at full speed, which is less than half of one percent of the average broadband speed in the US (~55 mb/sec). Bandwidth is basically a non-issue—you could run a mining rig off a dial-up connection (in terms of bandwidth, anyway—I absolutely recommend a wired ethernet connection for latency/reliability reasons).

My rig won’t boot properly unless a monitor is connected—what’s up with that?

I’m not sure why some people experience this (I did with my own LTC rig back in 2013, but not my newer ETH rigs), but if your rig won’t boot into the OS without a monitor attached, then you need a dummy plug (a device that plugs into your GPU, fooling the hardware into detecting a display). You can make you own for a few bucks by simply following these instructions (you can buy the resistors that you need on Amazon). Or you can buy pre-made HDMI plugs, although they’re more expensive (it shouldn’t matter if you use DVI or HDMI plugs). You should only need one plug attached to your primary video card, although some people use dummy plugs on all of their GPUs.

Isn’t Ethereum moving to proof-of-stake soon? Won’t that make our rigs obsolete?

Ethereum will eventually make the switch to PoS, which will make current methods of mining impossible. However, there isn’t currently a timeline for the switch in place, and one of Ethereum’s co-founders stated that an informal estimates of “late 2017” was “too rosy”. Most people close to Ethereum seem to feel that the second half of 2018 is a realistic target for the switch, which still leaves plenty of mining time.

When the switch does occur, it’ll be easy to transition our mining rigs to another coin (which you can then trade for ETH/BTC/LTC, if you don’t want to hold another altcoin).

I have an old video card with 2GB of memory laying around. Can I use it to mine ETH?

Unfortunately, no. Every individual GPU must be able to fit Ethereum’s DAG file into its own video memory to mine. The DAG file is slowly getting larger over time, and as of today, the DAG file is over 2GB, which means only cards with 3GB or more can mine ETH.

Sometime around April 2018, the DAG file will grow beyond 3GB.

The 4GB limit will be reached somewhere around September 2019, although it’s likely that Ethereum will have already moved to proof-of-stake by that point.

Other guides say that you shouldn’t run Linux off a USB drive if you plan to mine ETH, because constant DAG file writes will quickly wear the stick out. Your guide says that a USB stick is ok for a Linux-based ETH mining rig. What gives?

Any guide that cautions against installing Linux to a USB stick for ETH mining was probably written more than 6 months ago. The stock Ethereum miner (geth), writes the (very large) DAG file to disk fairly frequently, which can cause issues for media not rated for large numbers of writes (USB sticks, for example). Claymore’s miner (which we’re using) creates the DAG file in GPU memory, so we don’t have any excessive writes to worry about.

Just when I was about to reach 1 ETH at my mining pool, my balance went to zero! Did I get hacked?

Most mining pools (including ethermine.org, which I use in my guide’s setup examples) hold your earned balance until you reach a certain threshold (usually 1 ETH). When that threshold is reached, they transfer your balance to whatever wallet address you specified. If you’ve been watching your balance accumulate at your mining pool, and then it suddenly went to zero, most likely the pool just transferred your coins to your wallet. You can easily check the balance of your wallet address with a web-based blockchain explorer, such as this one.

How do I keep my ETH wallet safe?

Backup your wallet to multiple secure, offline devices (a few USB sticks are great for this). If you created your wallet using my guide, then you’ll find your wallet file(s) on your mining rig at the following location:

Linux:   ~/.ethereum/keystore
Windows:   %APPDATA%\Ethereum\keystore

Just copy the entire keystore directory someplace safe. To access the ether held in your wallet addresses, you’ll need both these encrypted key files, and the password that you used to create them. So make sure that you can remember your password(s) as well! Keeping some sort of password “hint” document (that only you would understand) on the backup USB sticks containing your key files isn’t a bad idea. Keep at least one copy off-site (eg: with somebody you trust, or a bank deposit box, etc).

So I’ve mined all this ether—how do I actually move/use it?

If you’re a masochist, you can move ether around right from the command line of your rig using geth. But I don’t recommend that as it’s tedious, confusing, and prone to mistakes.

A much better way is to download and install Mist (you can do this on any computer, it doesn’t have to be on your mining rig—do make sure that the computer is free from malware first, though!). Mist is essentially a GUI front-end for geth that hides all of the tedious command-line stuff from the user.

Once Mist is installed, you can simply import your wallet key files (see previous question if you don’t know where they’re located), and Mist will show the current balance of each. From there, you can simply click “Send” to move ether out of one of your own wallets to any other wallet address.

Important note: after you install Mist, it’s going to want to sync the blockchain to your computer. This can take anywhere from an hour to a day the first time you do it, depending on the speed of your internet connection (you’ll see a progress bar in the lower left corner). Until this finishes, the balance of all of your wallets will likely show up as zero. Don’t stress, this is normal. Once the sync is complete, all of your balances should show up properly.

I see that Claymore supports dual mining—what is that, and should I use it?

I wrote a dedicated blog post on this subject; you can read it here.

When it comes to buying/selling cryptocurrency, which exchange do you recommend?

There are so many exchanges, and frankly a lot of them are sketchy and operating in countries where regulation isn’t exactly tight. We’ll probably see another Mt. Gox at some point in the future because of this.

For now, I tend to recommend Coinbase. They’re based in San Francisco and seem to be doing all the right things with regard to regulation and insuring users’ funds.

As a general rule, don’t leave your currency in an exchange any longer than necessary (eg: don’t treat exchanges like banks!). Keep your funds in wallet addresses that you control, and move them to exchanges only when you want to trade.

Can I buy you a beer? Your mining guide has been a huge help!

Certainly! Well, virtually, anyway. I’d be happy to accept donations at the below wallet addresses:

Bitcoin: 1DpnANRtMDPe8jG3FXfkyczLFevM94Yjxv
Litecoin: LPuwBa3LbZZzcJaR3kEsGDBivAoc64fPUr
Ethereum: 0x32FD4a5DF96Af70b0D4644Cf4dce44cFc988BEE4

And thanks! =)

45 Responses to Build your own Ethereum Mining Rig, part 5: FAQ

  1. Anonymous says:

    Cryptobadger – thanks so much for putting all this information together! I will be sure to “buy you a beer” once my ETH payouts start coming through! I saw that you are able to dual mine ETH and another currency at the same time using Claymore. Is this something you do or have done? Any chance at a quick guide with the best way to dual mine if so?

    • CryptoBadger says:

      Yes, you’re able to dual mine using Claymore, although your ETH hashrate and power consumption will both suffer a bit (and for that reason, I generally just stick to mining ETH). Check the “sample usage” section of this post for examples – you’ll just need to edit your mining startup script and make the change on the line that you call the EthDcrMiner64 executable.

  2. Barry says:

    These guides are amazing, and helped me get my first rig up and running. I can’t thank you enough. Have you considered adding a guide on mining a second currency with Claymore? I’ve read several places that it has little to no effect on Ethereum mining. I’ve looked for guides on getting wallets set up for other currencies, and I’ve yet to find one that is straightforward.

    • CryptoBadger says:

      Dual mining isn’t that appealing to me personally because of the (admittedly small) impact on ETH hashrate and the additional downside of increased power consumption. You’re the second person that has asked today, so I may do a few tests anyway and get something up in the FAQ just for the sake of completeness. =)

      • Barry says:

        Yeah, sorry about that. I realized after I posted that someone had already asked. So far of the other currencies Claymore can mine, Siacoin seems the easiest to set up, though I doubt it’s the most profitable/least loss. With the added 1% dev fee, current Ethereum price, and additional power consumption, it may not be worth enabling dual mining for any of the other currencies.

  3. Gary says:

    Mist exe or zip?

  4. Gary N says:

    I have an old Sapphire TOXIC R9 280X card that’s faulty (the cat pissed on it!) in that there are vertical lines on the display but it’s still readable. Could I get started with that card or would the damage likely compromise any mining effort? Any idea what kind of Mhz such a card would produce?

    Also, what are you thoughts on using cards picked up on the second hand market? They’re certainly cheaper but if they’ve been used hard through gaming or mining, would they be worth the risk in a mining rig?

    Thanks for all the thought and time you’ve put into your guides.

    • Derrick says:

      awesome info. I’ve been looking for good information regarding mining and what you have provided is the most clear and is very helpful. Thanks!

    • CryptoBadger says:

      Ha, that’s definitely a first. =) The R9 280X should do 20-24 MH/sec, I believe – but it’ll use a lot of power compared to a RX4xx/5xx card. They’re still worth mining with, unless you pay an absurd amount for electricity. I don’t think there is any risk of damaging any other components by trying it out (if you’re seeing artifacts on the screen, it’ll probably be unstable), but I can’t say that I have any experience with your exact situation, either. =)

      Picking up cards off eBay or other secondary sources should be fine as long as there is no obvious physical damage to them. I ran many, many old 7950 GPUs 24/7 in litecoin mining rigs for nearly a year, and only had to RMA one card for failing a few months in. When I was done mining, I took two of those cards out and used them in gaming PCs for another ~3 years (only replacing them recently because they were so hot/noisy compared to modern alternatives – they still worked just fine). The bearings on GPU fans might get worn out and become noisy after a year or so of heavy use, but generally any PC hardware without moving parts is pretty reliable.

    • itsnotmegahertz! says:

      It’s not MHz (megahertz) – it’s megahash (Mh). I don’t know any cat pissed or pooped benchmarks on GPU’s, so your guess is as good as any 🙂

      It takes 10min to test it.

  5. Bob says:

    Hello cryptobadger. Thanks for your awesome guide. I have two questions if u woudlnt mind. 1. What do you think about nicehash. cant it be more profitable than mining pool? 2. Do you have any experience/ do you know how services like shapeshift works? Seems nice to me to automatically change eth everyday to btc but i dont know where is a catch there must be some? Thank you

  6. tseub says:

    hello ,is this PSU Lepa B1000-MB good to power 4 rx570 ? how do i attach the molex powered risers ?

    thx crypto badger

  7. darbysuperhack says:

    Related to “My rig won’t boot properly unless a monitor is connected”… Mine boots just fine, but when claymore starts up, only one of my cards is at full hash, the others are stuck at 300Mhz and 4.3MH/s. If I plug my monitor into a card, it will go up to full clock and hash and the primary card will stay up too. I can do this through all of my cards, but if the system reboots, all is lost, everything is back to 300Mhz except GPU0 (card in the first x16 slot).

    This system was working with all of the cards coming up at full clock but giving me constant atikmpag VIDEO_TDU_Failure. I ran windows updates, then DDU to remove the updated drivers, then installed Non-WHQL 16.9.1. This problem came up, I upgraded to Non-WHQL 16.11.5 to no avail.

    I’ve also tried disabling 4G in my bios and reenabling it.

    Do I need to get dummy HDMI plugs to fix this, or do you know something else I can do to resolve it?

    THANKS!

    • CryptoBadger says:

      I’m honestly not sure why some people experience this and others don’t, but dummy plugs should definitely resolve it. If there is another way to fix the issue without plugs, I’m not aware of it.

  8. Dmytro says:

    Hello,
    Do you know are there any associated fees if I transfer ETH cons from my EThereum wallet (or Mint) to f.e. Coinbase exchange address? Can not find this info.

    • CryptoBadger says:

      You’ll just pay the standard ETH network transaction fee, which in most cases will be tiny. Assuming you’re using the Mist wallet to perform the transaction, you’ll see a summary of the fee amount before you send.

  9. Anonymous says:

    Thanks for the amazing tutorial! I plan on putting a mining rig in the ceiling of a room at my university. The rig will be a little more cost-effective when tapping into their power and internet! The room is really noisy (lots of loud machines are in there already) and I’m confident that no one will notice. However, I am concerned that the Sys Admin will notice my network activity. You mentioned that mining only uses around 30kb/sec. Does it make a difference to use an ethernet cable instead of a wireless connection? Are there any other ways I can stay under their radar?

  10. Pierce Smith says:

    Are there any other ancillary pieces here that we need? I purchased each of the devices/units listed, but are there specific cables we should be purchasing, as well?

    • CryptoBadger says:

      You shouldn’t need any extra cables unless your power supply is positioned far enough from your GPUs that you need extenders. I recommend a kill-a-watt if you don’t have one, as they’re invaluable for testing, but it’s not strictly necessary.

  11. John says:

    Hello,

    I am trying to transfer 1 eth to coinbase but I got message “error insufficient gas + value”. How can I go around this?

    Please advise.

    Thanks

    • CryptoBadger says:

      The gas is small fee associated with each transaction. If you try to completely empty a wallet in Mist right now, you’ll get this error, since there is nothing left to cover this fee. For now, the easiest solution is to not completely empty your wallet. I believe this is considered a bug and a future version of Mist will allow you to specify that you want to transfer your entire wallet and have the fee be deducted from the outgoing transfer.

  12. Nick says:

    There seems to be a global shortage of RX470, RX480, RX570, RX580 etc.
    What hash rate could I expect to see from a 4GB RX460?

    • CryptoBadger says:

      About 10-12 MH/sec, according to reports from people that have them – too low to be a great choice for mining. Given the shortage of RX 570/580 cards, the best option right now is probably the nVidia GTX 1070 (basically on par with the RX 570/580). The GTX 1060 is a fine budget option, too (roughly 20% lower performance than a RX 570).

  13. gamma says:

    great articles but would like to suggest more article that how to install multiple GUPs.
    so…disabled ULPS,etc.

  14. Pierce Smith says:

    Anyone have any thoughts on MinerGate?

    I bought all the pieces for this rig, but experimenting now with my home desktop. Pros/Cons on using MinerGate software with this rig?

  15. Pierce Smith says:

    The software seems easy to use, but potentially too good to be true.

  16. Jonathan says:

    I have successfully got 6 msi armor rx580s running and hashing at 182mh/s. My rig was coming in at about 1150w on a 1200w psu, and sometimes after several hours of mining the cards would just shut off and the miner would freeze. Nothing restarted automatically because the machine remained on. When I restarted it would pick up mining again no problem.

    I thought this might be an issue that the cards were just drawing too close to the power limit and maybe that was causing the crash. However, I went ahead and attached a second (450w) PSU to one of my cards (which is mismatched, a strix gaming card with a heavier power draw). I have the pins properly connected on the motherboard plug and it starts up and remains on fine.

    The 2 PSUs work fine together, and the mining continues, however so does the occassional shut down, with the exact same symptoms. I’m not sure what else could be causing the graphics cards to simple stop working. Do you have any insight?

    • CryptoBadger says:

      The random freezing is probably because one or more of your GPUs aren’t stable at whatever clock speed settings you’re running at. Try lowering your clock speeds until the crashes stop.

      Also, 1150 watts is quite a lot for a 6x RX580 rig. Are you dual mining?

  17. Charles Carriere says:

    GREAT stuff, CryptoBadger. Thank you so much!!

    Quick question: I have an Asrock z97 Anniversary MOBO. I assumed through reading another website that I could run 6 GPUs on this board. However, the powered risers I have don’t fit on the PCI Classic slots – only the PCIe slots – so I am maxed out at 4. Is there any way to connect a GPU (Nvidia 1070) to the PCI Classic slots? Thanks for your help.

    Charles

  18. h2g-vaka says:

    Hey,

    Thanks for the awesome guide.

    I have just one question. You stated “… you’ll need both these encrypted key files, and the password that you used to create them.”

    I don’t have two files in “keystore” folder, just one. What’s the deal?

    Thanks.

  19. Bob_the_Builder says:

    Regarding Coinbase. I am using it, however, be aware…the IRS and Coinbase are currently doing battle. The IRS is asking for a complete data dump of all transactions. Coinbase is fighting back! Go Coinbase! However, they will eventually probably settle on a happy medium. Coinbase will probably end up issuing 1099’s. So your Crypto sales are eventually going to be reported to the IRS. When? Ask Donald Trump. Be careful using Coinbase for sales of crypto into Dollars and then transferring those dollars out of Coinbase. The IRS may come knocking in the future….

    • CryptoBadger says:

      Definitely recommend that everyone consult a tax expert when selling significant amounts of cryptocurrency. Regardless of what Coinbase does, it’s always a good idea to report any income from digital currency sales properly on your annual tax return. Large (or frequent, smaller) transactions into your bank account are likely enough to trigger questions from the IRS anyway, especially if the money isn’t explained on your return.

      I haven’t sold any cryptocurrency myself, but my understanding is that currently in the US, sales of anything you’ve held for more than a year are taxed at the long-term capital gains rate, so it’s not too painful to play it safe and declare everything voluntarily.

      • Barry says:

        I’d echo this. The IRS has a high level overview, https://www.irs.gov/uac/newsroom/irs-virtual-currency-guidance , but there’s a multitude of factors that play into how (and potentially if) fiat money received from selling cryptocurrency is taxed. And it’s not just when you sell it; simply receiving or mining cryptocurrency could have tax implications as well. You may save yourself a headache down the road with a little planning, especially if you plan on mining for any length of time.

  20. Sebastian says:

    Hi, I am just through all you guides and I can say this is the best collection about all relevant stuff without any distracting noise that I could find on the net. Thank you for putting this together.

    Your beer being served to your Ether Wallet right now.

    Take care

  21. Aneurism says:

    Hi CryptoBadger, thanks for your really great Ethereum rig guide, it was extremely helpful. I am sending a small token of appreciation to you.
    Regards,
    Aneurism

  22. Arath says:

    hey Crypto Badger. I really need your help ! For some reason i cannot get my monitor connected to my miner ? I connect via DVI and on the monitor it keeps saying “No Signal” . I have an MSI Z170A SLI PLUS motherboard, 6 GTX Nvidia 1070 GPU’s , 1300 W power supply 60 gb SSD and the corresponding SSD. Can you please get back to me ? Maybe I’m doing something wrong ? Will definitely “buy you a beer” if you can please help me get going . I’ve sunk a lot of money into building this miner please help!

    • Charles says:

      Hi Arath,
      I encountered this same problem. The only workaround I found was to leave the GPUs unplugged while I did the setup through the SSH. Plug the monitor into the motherboard and just leave the GPUs unattached. Getting the rig into headless mode makes it much easier. Once you can ssh into your computer, you can plug in the GPUs and install the drivers. No need to have a monitor plugged into your rig at all.
      Hope this helps!
      Good luck!

      Charles

  23. How many “BEERS” would it take to have you assist in software configuration and ensure that our rig is off to a good start?

    All the equipment is 100% brand new.

    Thanks!
    Jermaine

  24. Dmytro says:

    It seems difficulty of ETH mining has strongly increased during last month so it is less profitable now 🙁

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