Ethereum mining rig, Observations

…from an apartment somewhere ter Kansas City

For about the last month, I’ve bot Ethereum mining, putting a GTX 1060 (“Rack 2U GPU Compute Node“) and 1070 (“Mira“), and an R9 290X (from “Absinthe“) at this. Ter part to see what the hardware can do. And I’ve bot rather struck with the R9’s spectacle that I determined to build another standalone knot for Ethereum mining using another AMD graphics card.

And the graphics card is the only fresh contribution to this, the only hardware I didn’t have previously. Everything else wasgoed hardware I already had on forearm.

That is the Sapphire Nitro+ RX 580. Specifically I picked up the 4GB proefje. My only slight concern wasgoed power consumption.

I managed to find the Nitro+ card spil an open opbergruimte at Micro Center for a very nice markdown. If not for the markdown, however, I would not have gone with this spil it’s one of the more expensive RX 580s on the market. I would’ve instead looked for a lesser RX 580, or possibly looked for an RX 570 instead.

Ter my Ten Gigabit Ethernet series, I mentioned building a custom-built switch from the above hardware. And after disassembling that switch to substitute it with an off-the-shelf 10GbE SFP+ switch, I never reprovisioned that hardware for anything else, despite programma to do so.

So assembling the system wasgoed pretty straightforward: druppel the fresh graphics card te, buttplug it up, find something to act spil primary storage, and go.

One thing that wasgoed frustratingly strange: Ubuntu did NOT want to play nice with the onboard Gigabit NIC, or with a separate TP-Link NIC I attempted to use. I wasgoed able to get the networking functional with another HP 4-port Gigabit NIC. Fedora 26, however, had no issues playing nice with the onboard NIC.

But this wasgoed only a makeshift build. I had no intention of leaving this card plugged into the FX-8350. Again the initial build wasgoed te this merely because it wasgoed mostly ready. And I primarily couldn’t find the mainboard and processor I dreamed to use to drive this mining machine. I did find it straks that day, so I determined to let the system run and I’d interchange things out the next day.

Wait, a 12 year-old podium driving a modern graphics card? I know what you might be thinking: verkeersknelpunt! Except…. no.

While this combination certainly is not powerful enough to drive this card for gaming, it’s more than enough for computational tasks such spil BOINC, [email protected] (tho’ you’d truly want a better CPU), and Ethereum mining. The aforementioned R9 290X is running on an Athlon 64 X2 3800+ system without a problem. It overtook my GTX 1060 on reported shares, despite the 1060 having a several day head begin, and is reporting a better hash rate than my GTX 1070.

So… yeah. Spil I’ve pointed out before, most who scream “bottleneck” are those who have no clue how all of this stuff works together.

That being said, tho’, the RX580’s spectacle out of the opbergruimte left much to be desired: 18MH/s out of the opbergruimte. When others are reporting mid 20s to near 30? What gives? I mean the R9 290X wasgoed outperforming it. Thesis are the hash rates reported to the pool by ethminer:

I thought system memory wasgoed holding back the mining software, so I interchanged 4GB into the system. No difference. Had a slight improvement interchanging te Claymore’s Dual-Miner for the original ethminer, but still wasn’t anywhere near what I thought I should’ve bot watching.

The GTX 1060 equipment had bot offline for a few days, so I moved the mainboard (Athlon X4 860k) from that into the 4U chassis and installed the RX 580 into that, then interchanged out Ubuntu for Windows Ten. Pull down the Claymore miner for Windows, and attempt to run it… No significant difference ter hash rate.

Which rules out the toneel spil the culprit. And I didn’t have any reason to think it would be. Instead the toneel switch wasgoed due to my concern the Linux driver may have bot holding it back, thinking there would be a spectacle boost by running the Windows driver. And out of the opbergruimte there wasn’t.

But setting the “GPU Workload” setting to “Compute” instead of “Gaming” boosted the hash rate to about 22.5MH/s. Time to overclock.

One thing I didn’t realize ahead of this: the 4GB RX cards have their memory clocked at 1750MHz, while the 8GB RX cards have memory clocked at 2000MHz. Which certainly explains the lackluster vertoning I had out of the opbergruimte – and likely why it wasgoed returned to Micro Center.

And ter reading about how to get better mining spectacle, everything I read said to concentrate on memory, not core speed.

So with MSI Afterburner, I very first turned up the fan to druppel the core temperature. Then I embarked bumping the memory with the miner running ter the background to provide an instant stability and spectacle check. I wasgoed able to shove it to 2050MHz. At 2100MHz, the system locked up. I wasgoed not interested te dialing it te any further, spil any improvements would’ve bot within margin of error.

26MH/s. About on par with my GTX 1070. And almost 45% increase te vertoning by setting the driver to Compute and overclocking the memory.

The fact I wasgoed able to get 24.4MH/s out of the R9 290X, running the AMD driver on Ubuntu Server with no extra configuration (since I don’t know if you can configure it further), shows I vereiste have a truly, truly good R9 290X, since it wasgoed only 10% lower than my GTX 1070 on reported hash rates from the mining software.

Until I interchanged out ethminer for Claymore’s miner. Then it overtook my GTX 1070 on hash rate.

I mentioned before that this isn’t the only mining equipment I have set up presently. Along with Mira, I have two other systems, one with the aforementioned R9 290X and GTX 1060, both running Ubuntu Server 16.04.Trio LTS and using Claymore’s miner.

Right now this system is sitting ter an open-style setup. I’m working to stir it, and the water cooling setup, into another 4U chassis. I just need to, very first, find a DDC pump or possibly use an aquarium pump inwards a custom-built reservoir.

Not much to write huis about at the ogenblik. I’m considering interchanging this into one of the 990FX platforms to use Windows Ten so I can overclock it and see if I can get any extra vertoning from it. Since it’s a hell of a lotsbestemming lighter to overclock a graphics card on Windows.

The GTX 1060 also is not water cooled, but that might switch spil well, tho’ using an AIO and not a custom-built loop. Which is a reason to interchange it into a 4U chassis and out of the 2U chassis that presently houses it. But I’d also need another rack to hold that.

There indeed are only three graphics cards to recommend out of what’s on the market, te my opinion: the GTX 1060, RX 570, or RX 580. Spil demonstrated, the RX 580 is the better performer, but also has higher power requirements compared to the GTX 1060.

So if you pick up a GTX 1060, you can save a little money and get the 3GB specimen and still have a gepast hashrate. You can even attempt overclocking it on Windows if you desire. The 6GB monster may give you better vertoning (since it has more CUDA cores), but it’s up to you spil to whether you feel it’s worth the toegevoegd cost. The mini versions work well, but the full-length cards will provide better cooling on the core.

For AMD RX cards, run those on a Windows system with the driver set to “Compute”. You can also save a little money and grab the 4GB version. Just make sure to overclock the memory.

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