Claymore's Dual Ethereum AMD+NVIDIA GPU Miner v15.0 (Windows/Linux)

[adaseb]

Hello everyone!

I am completely new to ET/ETC mining so can you please suggest me on latest mining setup based on 3-6 GPUs? Anyone?

Regards

there are literally infinite tutorials available when you search in the google for this in form of video or blog etc
still i will give you a basic rundown
install windows and use risers to connect multiple gpus in your mob
after they are detected
just install the graphics driver
download the miner and execute it

Thanks! However I was looking for advice on the choice of GPUs specifically. Have read some guides(and still reading...) though.

I am assuming you most likely want to do this as a hobby and not "To get rich" because these days the profitability is horrible.

With this out of the way, my advice to you is to go on Craigslist or Facebook market place or eBay or whatever second hand listing service you have in your area and buy some cheap RX 470/570/480/580 8GB for like $75.

They are very cheap because most miners stopped mining with them and most gamers don't want AMD gpus. With those GPUs you will get 30MH/s using about 130Watts per GPU.

Most brands are fairly reliable and they are bullet proof, the issues you might run into are maybe failed fans, however there are replacements all over eBay and Amazon.

[1715206515]

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[1715206515]

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[1715206515]

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[SergeySS]

RX 480 8GB speed 33 MH/S Power 80 watts

[Lunga Chung]

RX 480 8GB speed 33 MH/S Power 80 watts

yeah right

[adaseb]

RX 480 8GB speed 33 MH/S Power 80 watts

yeah right

No it was never 80 watts, most likely he is talking about the wattage that you see in GPU-z which is only the GPU chip wattage and doesn't account for the rest of the board like the memory controller, fans, and other components.

Honestly I don't think 33MH/s is easy with a 480 8GB, maybe some with a certain ASIC quality were possible but with my RX 470 4GB the most I could get was like 29.5mh/s and it wasn't really efficient. The best efficiency was at like 28.5MH/s and it still used 120 Watts per GPU from the wall not including the motherboard+drive+ram.

80 watts is just not possible with any RX 470/570.

[batsonxl]

RX 480 8GB speed 33 MH/S Power 80 watts

yeah right

No it was never 80 watts, most likely he is talking about the wattage that you see in GPU-z which is only the GPU chip wattage and doesn't account for the rest of the board like the memory controller, fans, and other components.

Honestly I don't think 33MH/s is easy with a 480 8GB, maybe some with a certain ASIC quality were possible but with my RX 470 4GB the most I could get was like 29.5mh/s and it wasn't really efficient. The best efficiency was at like 28.5MH/s and it still used 120 Watts per GPU from the wall not including the motherboard+drive+ram.

80 watts is just not possible with any RX 470/570.

rx 470 4gb you have elpida memory i guess yes they give you stable 29.5mhz but i have also rx 470 with samsung memory which gives stable 30.5-30.8mhz which is good for these cards.32-33mhz is easy to get with rx 480-580 with samsung memory an micron also doing not bad.

[big_daddy]

RX 480 8GB speed 33 MH/S Power 80 watts

what mem / timings are you using here?

[SergeySS]

RX 480 8GB speed 33 MH/S Power 80 watts

what mem / timings are you using here?

1236/2180

[tg88]

on windows 7 APPCRASH EthDcrMiner64.exe amdocl64.dll
drivers blockchain crimson 23 august

your miner work with windows 7?

I don't have windows 7 rigs at the moment, but I think it works.

Try to cleanly uninstall drivers with DDU uninstaller and reinstall.

already done many times, and windows also reinstalled

Try to add these parameters to your command line:

Try to add these environment variables to your command line:

GPU_FORCE_64BIT_PTR 0
GPU_MAX_HEAP_SIZE 100
GPU_USE_SYNC_OBJECTS 1
GPU_MAX_ALLOC_PERCENT 100
GPU_SINGLE_ALLOC_PERCENT 100
EthDcrMiner64.exe -epool ssl://eu1.ethermine.org:5555 -ewal 0xD69af2A796A737A103F12d2f0BCC563a13900E6F -epsw x


If it does not work test with:
GPU_FORCE_64BIT_PTR 1

[adaseb]

RX 480 8GB speed 33 MH/S Power 80 watts

yeah right

No it was never 80 watts, most likely he is talking about the wattage that you see in GPU-z which is only the GPU chip wattage and doesn't account for the rest of the board like the memory controller, fans, and other components.

Honestly I don't think 33MH/s is easy with a 480 8GB, maybe some with a certain ASIC quality were possible but with my RX 470 4GB the most I could get was like 29.5mh/s and it wasn't really efficient. The best efficiency was at like 28.5MH/s and it still used 120 Watts per GPU from the wall not including the motherboard+drive+ram.

80 watts is just not possible with any RX 470/570.

rx 470 4gb you have elpida memory i guess yes they give you stable 29.5mhz but i have also rx 470 with samsung memory which gives stable 30.5-30.8mhz which is good for these cards.32-33mhz is easy to get with rx 480-580 with samsung memory an micron also doing not bad.

The RX 470/570 4GB came with either Samsung, Hynix or Elpida memory. I think the first batch was mostly Hynix and then some manufacteurs started to include Elpida and some higher end manufacteurs included Samsung memory.

90% of all my RX 470 4GB are Hynix and 10% were Samsung. The Samsung were the best because they gained usually 1-2Mh/s more than Hynix. The Elipida I heard were the worse.

The Samsungs were also good on other algos like XMR (the old XMR algo not current).

The issue is that before you actually buy and install the card, you have no idea what type of memory is included. With some models you can look and read the chip but others its covered and you need to use GPU-z.

[sxemini]

RX 480 8GB speed 33 MH/S Power 80 watts

yeah right

No it was never 80 watts, most likely he is talking about the wattage that you see in GPU-z which is only the GPU chip wattage and doesn't account for the rest of the board like the memory controller, fans, and other components.

Honestly I don't think 33MH/s is easy with a 480 8GB, maybe some with a certain ASIC quality were possible but with my RX 470 4GB the most I could get was like 29.5mh/s and it wasn't really efficient. The best efficiency was at like 28.5MH/s and it still used 120 Watts per GPU from the wall not including the motherboard+drive+ram.

80 watts is just not possible with any RX 470/570.

rx 470 4gb you have elpida memory i guess yes they give you stable 29.5mhz but i have also rx 470 with samsung memory which gives stable 30.5-30.8mhz which is good for these cards.32-33mhz is easy to get with rx 480-580 with samsung memory an micron also doing not bad.

The RX 470/570 4GB came with either Samsung, Hynix or Elpida memory. I think the first batch was mostly Hynix and then some manufacteurs started to include Elpida and some higher end manufacteurs included Samsung memory.

90% of all my RX 470 4GB are Hynix and 10% were Samsung. The Samsung were the best because they gained usually 1-2Mh/s more than Hynix. The Elipida I heard were the worse.

The Samsungs were also good on other algos like XMR (the old XMR algo not current).

The issue is that before you actually buy and install the card, you have no idea what type of memory is included. With some models you can look and read the chip but others its covered and you need to use GPU-z.

My opinion:
Samsung worst (30,5mh only)
Elpida good (up to 33mh)
Hynix best (up to 33,4 - 34 mh)

[Lunga Chung]

RX 480 8GB speed 33 MH/S Power 80 watts

what mem / timings are you using here?

1236/2180

this wouldn't display 80W even in GPU-Z

[andreykx]

AMD OpenCL has a single allocation limit of 4Gb on 8Gb cards.

Do you plan on supporting 4Gb+ DAG size? Is this even possible with the AMD OpenCL CL_DEVICE_MAX_MEM_ALLOC_SIZE limit?

[big_daddy]

RX 480 8GB speed 33 MH/S Power 80 watts

what mem / timings are you using here?

1236/2180

this wouldn't display 80W even in GPU-Z

Right
Or give us the whole modded bios, straps, timings and I’ll test it
Or this is simply a lie

[adaseb]

RX 480 8GB speed 33 MH/S Power 80 watts

what mem / timings are you using here?

1236/2180

this wouldn't display 80W even in GPU-Z

It could display 80W in GPU-z but I am wondering what his VDDC is. If he somehow got some high 99% ASIC quality GPU where he can run it at 1236Mhz core while undervolted to the min like 0.80V and has some good quality memory which doesn't give memory errors at 2180Mhz.

I had issues running some GPUs at a small undervolt if they were over 1150Mhz, and 1236Mhz would be very difficult to get very stable to the point where you don't need to restart it daily.

He could of just used uber straps or that tool called Pimp my straps to get those speeds.

[Lunga Chung]

It could display 80W in GPU-z but I am wondering what his VDDC is. If he somehow got some high 99% ASIC quality GPU where he can run it at 1236Mhz core while undervolted to the min like 0.80V and has some good quality memory which doesn't give memory errors at 2180Mhz.

I had issues running some GPUs at a small undervolt if they were over 1150Mhz, and 1236Mhz would be very difficult to get very stable to the point where you don't need to restart it daily.

He could of just used uber straps or that tool called Pimp my straps to get those speeds.

I seriously doubt that 1236 can run on less then 0.85-0.87V

I'm not saying that 33Mhs isn't possible, just not at 80W, people need to understand that goal is to run miners with the best possible hashrate/consumption ratio, I'm pretty sure if neglect the consumption we could easily reach 34-35 Mhs

[Unclegogi]

On one rig I meet the problem:
after start it prints an error to the log mulltiple times: "cannot get current settings, error -1", after that rig can freeze (i suggest that AMD driver resets).
What does this message mean?
Did anyone meet the same problem?

This rig has 4 x Radeon VII installed, downvolted, at stock memory clock, and it was rock stable before (>1k hours uptime).
Virtual memory is set to 65-70GB that should be enought.

[tg88]

On one rig I meet the problem:
after start it prints an error to the log mulltiple times: "cannot get current settings, error -1", after that rig can freeze (i suggest that AMD driver resets).
What does this message mean?
Did anyone meet the same problem?

This rig has 4 x Radeon VII installed, downvolted, at stock memory clock, and it was rock stable before (>1k hours uptime).
Virtual memory is set to 65-70GB that should be enought.

I suggest testing your risers, if your rig worked perfectly and started crashing normally is a problem in a riser.

[freak1]

Just started getting this error on my miners, using ethermine.org as pool.

ETH: Received error: {"id":16,"jsonrpc":"2.0","error":{"code":27,"message":"Illegalparams"}}

Anyone know what that is?

[VasilyS]

It is strange, but your miner makes wrong shares while mining UBIQ. Is there compatibility issue after hardfork in 2018 and switching to Ubqhash (modernised Ethash)? PhoenixMiner is working pretty well with UBIQ now.

[platinum4]

Does anyone have such problem - on Win 7, v15, drvs 436.30 and 441.66 and GTX1070 cards hashrate is about 22Mhash.... Tried to clean drivers with DDU and reinstall them, tried with/withous straps, w/wo OC etc.... On other algorythms speed is same as before, no change. And some months ago with older claymore all was fine, but now, with v15 such problem

upd: same issue on Phoenix miner, but all fine on nanominer and gminer.... can't even guess what it can be...

I can't use Phoenix 4.8c/Claymore 15 with 441.87 at all, it will crash before hashing on Phoenix sometimes, and in Claymore after about two/three rounds; removed all overclocks and the same.

Pissed me off cuz I'm stable for days on Equihash192,7 and Neoscrypt (much hotter algos)