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Re: Claymore's Dual Ethereum AMD+NVIDIA GPU Miner v11.9 (Windows/Linux)
Fellow users of Claymore, I need some help
I have 1 miner with 6x AMD RX580 mining on Linux Mint 18.3, Kernel 4.13.0-41, amdgpu-pro driver 17.50, Claymore 11.9
The miner is running stable 175Mhs but still need some fine tuning.
I have modified the BIOS of the RX580 to achieve near 30MHs just by copying the bootstraps. Did not change values on the voltage.
Since I am achieving 175MHs means I am close to the 180MHs that is the standard for these RX580. So the MHs is not the issue.
The issue (where I need help) is related with Claymore software:
1 - No matter what changes I do in Claymore parameters -cclock and -mclock it has no effect whatsoever on the mining hash that is constant at 175MHs. This is what I do not understand. It seems the miner Claymore has no control over the GPU's clocks (core and memory)
2 - When running same miner on Windows 10 Pro I can adjust power usage (undervolting) to reach less power consumption by using OverdriveNTool and adjust voltages for 800 and 875 thus running the miner at lower temperatures and lower power consumption. I was expecting reach the same good results by adjusting the Claymore parameters to -cdvvc=800 and -mdvvc=875 but it does not work. It seems the miner Claymore has no control over the GPUs voltage (core and memory)
Here is my start.sh:
#!/bin/bash
export GPU_MAX_ALLOC_PERCENT=100
./ethdcrminer64 -epool ssl://eu1.ethermine.org:5555 -ewal xxx -epsw x -eworker xxx -etha 2 -asm 1 -mode 1 -wd 1 -tt 65 -cclock 1150 -mclock 2030 -cvddc 800 -mvddc 875 -platform 1 -y 1
Unless I am forgetting to do some adjustment I am reaching the conclusion the Claymore software is useless to adjust clock and voltage on Linux. It seems that the parameters -cclock -mclock -cdvvc -mdvvc are useless on Linux. Can this conclusion be correct?
I have 1 miner with 6x AMD RX580 mining on Linux Mint 18.3, Kernel 4.13.0-41, amdgpu-pro driver 17.50, Claymore 11.9
The miner is running stable 175Mhs but still need some fine tuning.
I have modified the BIOS of the RX580 to achieve near 30MHs just by copying the bootstraps. Did not change values on the voltage.
Since I am achieving 175MHs means I am close to the 180MHs that is the standard for these RX580. So the MHs is not the issue.
The issue (where I need help) is related with Claymore software:
1 - No matter what changes I do in Claymore parameters -cclock and -mclock it has no effect whatsoever on the mining hash that is constant at 175MHs. This is what I do not understand. It seems the miner Claymore has no control over the GPU's clocks (core and memory)
2 - When running same miner on Windows 10 Pro I can adjust power usage (undervolting) to reach less power consumption by using OverdriveNTool and adjust voltages for 800 and 875 thus running the miner at lower temperatures and lower power consumption. I was expecting reach the same good results by adjusting the Claymore parameters to -cdvvc=800 and -mdvvc=875 but it does not work. It seems the miner Claymore has no control over the GPUs voltage (core and memory)
Here is my start.sh:
#!/bin/bash
export GPU_MAX_ALLOC_PERCENT=100
./ethdcrminer64 -epool ssl://eu1.ethermine.org:5555 -ewal xxx -epsw x -eworker xxx -etha 2 -asm 1 -mode 1 -wd 1 -tt 65 -cclock 1150 -mclock 2030 -cvddc 800 -mvddc 875 -platform 1 -y 1
Unless I am forgetting to do some adjustment I am reaching the conclusion the Claymore software is useless to adjust clock and voltage on Linux. It seems that the parameters -cclock -mclock -cdvvc -mdvvc are useless on Linux. Can this conclusion be correct?
Re: Claymore's Dual Ethereum AMD+NVIDIA GPU Miner v11.9 (Windows/Linux)
Good mining day to all 
This morning I look to the ETH Network and found a big dip in the total of:
Now I understood is related with the DAG #200.
I checked my 5 miners and they mining as usual. I am using Claymore V11.8
I have been using Claymore Miner for more than 1 year now.
This morning I look to the ETH Network and found a big dip in the total of:
- Total Network Hashrate (now is bellow 244TH/s)
- number of active miners in the pool and also number of active workers
Now I understood is related with the DAG #200.
I checked my 5 miners and they mining as usual. I am using Claymore V11.8
I have been using Claymore Miner for more than 1 year now.
Re: Claymore's Dual Ethereum AMD+NVIDIA GPU Miner v11.0 (Windows/Linux)
Sorry for long post.
I am attempting to use Claymore's Dual Miner V11 to mine Ethereum/XVG. I have also attempted using the ETH only mining mode. Whenever I run the start.bat, my computer hangs and then crashes every single time causing hard boot after this step: "Create GPU Buffer for GPUX" - the GPU has changed to all of them (0-5) through multiple attempts. I have attempted to run the miner with each single GPU (and other 5 disconnected) unsuccessfully. I have tested the miner on my regular desktop and bat file runs without difficulty.
Here are my specs:
x6 XFX Radeon 570 (all 6 cards appear in device manager - DDU successfully run - all changed to compute mode via AMD settings - current software version 18.2.1 adrenalin)
Intel Pentium G4400 Skylake Dual-Core 3.3 GHz
4GB Kingston HyperX FURY Black 2133MHz DDR4 (have also attempted x2 for 8GB without success)
ASUS Z170 Maximus VIII (bios updated via EZ FLASH)
EVGA SuperNOVA 1200W P2 80+ PLATINUM
Silicon Power 60GB SSD (have attempted running this as a third output for the 3 SATA cables each running two of the GPUs and given its own 4th SATA cable)
Windows 10 (installed via bootable UEFI USB)
Bios settings:
DMI max link speed gen 2
PEG PCI link speed gen 2
PCIE confing PCIE speed gen 2
Disabled LED Lighting
Disabled HD Audio
Above 4G Decoding Enabled
Disabled Integrated Graphics (this was necessary for system to recognize 6 GPU)
Windows settings:
Disabled windows firewall/defender/antivirus
Ran Windows 10 Registry tweaks for mining.bat (from mining.help)
Ran Windows update (now disabled)
Have changed virtual memory settings (attempted low end from suggested to 16000 and high end from 20000-24000)
start.bat file:
EthDcrMiner64.exe -epool us2.ethermine.org:4444 -ewal WalletNumber.WalletName -epsw x -dpool stratum+tcp://xvg.eu1.unimining.net:5770 -dwal WalletNumber -dpsw c=XVG -dcoin blake2s
have also attempted to mod -gser and this seemed to slightly delay the crash
have also attempted to mod -lidag and this seemed to slightly delay the crash
Windows logs show this critical error with every crash:
The system has rebooted without cleanly shutting down first. This error could be caused if the system stopped responding, crashed, or lost power unexpectedly.
I'm at my wits end as far as what else to try. Any ideas are appreciated.
Edit: have not changed GPU BIOS or attempted overclocking/undervolting yet.
I am attempting to use Claymore's Dual Miner V11 to mine Ethereum/XVG. I have also attempted using the ETH only mining mode. Whenever I run the start.bat, my computer hangs and then crashes every single time causing hard boot after this step: "Create GPU Buffer for GPUX" - the GPU has changed to all of them (0-5) through multiple attempts. I have attempted to run the miner with each single GPU (and other 5 disconnected) unsuccessfully. I have tested the miner on my regular desktop and bat file runs without difficulty.
Here are my specs:
x6 XFX Radeon 570 (all 6 cards appear in device manager - DDU successfully run - all changed to compute mode via AMD settings - current software version 18.2.1 adrenalin)
Intel Pentium G4400 Skylake Dual-Core 3.3 GHz
4GB Kingston HyperX FURY Black 2133MHz DDR4 (have also attempted x2 for 8GB without success)
ASUS Z170 Maximus VIII (bios updated via EZ FLASH)
EVGA SuperNOVA 1200W P2 80+ PLATINUM
Silicon Power 60GB SSD (have attempted running this as a third output for the 3 SATA cables each running two of the GPUs and given its own 4th SATA cable)
Windows 10 (installed via bootable UEFI USB)
Bios settings:
DMI max link speed gen 2
PEG PCI link speed gen 2
PCIE confing PCIE speed gen 2
Disabled LED Lighting
Disabled HD Audio
Above 4G Decoding Enabled
Disabled Integrated Graphics (this was necessary for system to recognize 6 GPU)
Windows settings:
Disabled windows firewall/defender/antivirus
Ran Windows 10 Registry tweaks for mining.bat (from mining.help)
Ran Windows update (now disabled)
Have changed virtual memory settings (attempted low end from suggested to 16000 and high end from 20000-24000)
start.bat file:
EthDcrMiner64.exe -epool us2.ethermine.org:4444 -ewal WalletNumber.WalletName -epsw x -dpool stratum+tcp://xvg.eu1.unimining.net:5770 -dwal WalletNumber -dpsw c=XVG -dcoin blake2s
have also attempted to mod -gser and this seemed to slightly delay the crash
have also attempted to mod -lidag and this seemed to slightly delay the crash
Windows logs show this critical error with every crash:
The system has rebooted without cleanly shutting down first. This error could be caused if the system stopped responding, crashed, or lost power unexpectedly.
I'm at my wits end as far as what else to try. Any ideas are appreciated.
Edit: have not changed GPU BIOS or attempted overclocking/undervolting yet.
try change "gen2" to "Gen 1" in your motherboard BIOS
try >= 120GB SSD
try with only 5 or 4 GPU (to check if PSU 1200 enough)
(give feedback afterwards)
Re: Voltage/clock parameters not working on RX580 / newest drivers?
I am running 6 RX580s, newest Radeon drivers, Claymore 11.0. When I use the memory and core voltage and clock parameters, they have no effect. This is my command line:
EthDcrMiner64.exe -epool eu1.ethermine.org:4444 -ewal ... -epsw x -dpool stratum+tcp://xvg.eu1.unimining.net:5770 -dwal ... -dpsw c=XVG -allpools 1 -esm 1 -mode 0 -dcoin blake2s -asm 1 -dcri 49 -platform 1 -ftime 0 -tt 65 -ttli 75 -tstop 80 -tstart 50 -mclock 2065,2065,2030,2065,2065,2065 -mvddc 800 -cvddc 850 -mport -10047 -r 1 -dbg 0
Any advice on this?
EthDcrMiner64.exe -epool eu1.ethermine.org:4444 -ewal ... -epsw x -dpool stratum+tcp://xvg.eu1.unimining.net:5770 -dwal ... -dpsw c=XVG -allpools 1 -esm 1 -mode 0 -dcoin blake2s -asm 1 -dcri 49 -platform 1 -ftime 0 -tt 65 -ttli 75 -tstop 80 -tstart 50 -mclock 2065,2065,2030,2065,2065,2065 -mvddc 800 -cvddc 850 -mport -10047 -r 1 -dbg 0
Any advice on this?
since your are using newest Radeon drivers I suggest you check if optional software Radeon Settings was installed with driver. If yes then check if options "compute" is activated for each GPU (instead of "graphics" option). Also I would try this: uninstall that optional software (custom install driver only graphics card option). Run again Claymore. It might give full control to Claymore -mclock setting again.
P.S.: I suggest the blockchain AMD driver 23Aug instead of "newest Radeon driver"
Re: Claymore's Dual Ethereum AMD+NVIDIA GPU Miner v10.6 (Windows/Linux)
For those mining using:
If you are using proprietary AMD's driver amdgpu-pro driver you might have noticed the hash rate is not stable and dropped. This is due to that Security Issue found on Intel chips recently.
I know the solution is to disable automatic updates of the kernel and to "roll back" to previously "good working" (for mining) Linux Kernel Version.
What I would like to know is what version of the Linux Kernel (4.4.xx or 4.10.xx or 4.13.xx) you found to be more stable and optimized for mining?
Is it the normal version or the HWE version?
P.S.: if your rig is still stable you can get this info by typing: uname -a
- Linux Ubuntu Server 16.04
- GPU RX580
If you are using proprietary AMD's driver amdgpu-pro driver you might have noticed the hash rate is not stable and dropped. This is due to that Security Issue found on Intel chips recently.
I know the solution is to disable automatic updates of the kernel and to "roll back" to previously "good working" (for mining) Linux Kernel Version.
What I would like to know is what version of the Linux Kernel (4.4.xx or 4.10.xx or 4.13.xx) you found to be more stable and optimized for mining?
Is it the normal version or the HWE version?
P.S.: if your rig is still stable you can get this info by typing: uname -a
Re: Claymore's Dual Ethereum AMD+NVIDIA GPU Miner v10.2 (Windows/Linux)
Hello,
Trying to set up multi gpu system.
8 NVIDIA 1050's and 5 AMD RX470's on Asrock H110.
Was working well with 8+1 but after adding the last 4 the miner now hangs on startup.
Tried versions 9.7 thru 10.2, no luck.
Is there a claymore GPU limitation I am missing? All cards are installed properly in windows and patched blockchain drivers for the AMD.
The nvidia are a bit older drivers but seem to have the best luck with them for many months.(newer ones were not stable).
I tried the -gser settings but just delayed the hang.
Claymore loads the AMD cards, and them pauses, then eventually locks the entire computer.
Any ideas?
Thanks so much! Any suggestions are greatly appreciated.
Trying to set up multi gpu system.
8 NVIDIA 1050's and 5 AMD RX470's on Asrock H110.
Was working well with 8+1 but after adding the last 4 the miner now hangs on startup.
Tried versions 9.7 thru 10.2, no luck.
Is there a claymore GPU limitation I am missing? All cards are installed properly in windows and patched blockchain drivers for the AMD.
The nvidia are a bit older drivers but seem to have the best luck with them for many months.(newer ones were not stable).
I tried the -gser settings but just delayed the hang.
Claymore loads the AMD cards, and them pauses, then eventually locks the entire computer.
Any ideas?
Thanks so much! Any suggestions are greatly appreciated.
most probably your PSU is not enough and it is not a GPU limit issue (Claymore limit is 32)
Re: Claymore's Dual Ethereum AMD+NVIDIA GPU Miner v10.2 (Windows/Linux)
Hello,
Trying to set up multi gpu system.
8 NVIDIA 1050's and 5 AMD RX470's on Asrock H110.
Is there a claymore GPU limitation I am missing?
Trying to set up multi gpu system.
8 NVIDIA 1050's and 5 AMD RX470's on Asrock H110.
Is there a claymore GPU limitation I am missing?
Yep. Claymore supports 10 GPUs max. Try running claymore for the 470s and ewbf (equihash) for the 1050s - you'll make more that way anyhow
If you read Claymore´s README file you will learn limit is 32 GPU and not 10 GPU
Re: Claymore's Dual Ethereum AMD+NVIDIA GPU Miner v10.2 (Windows/Linux)
Hi i'm trying to mining firstime
i load CM.V10.2
and put this ...
EthDcrMiner64.exe
-epool eth-asia1.nanopool.org:9999
-ewal (mywallet)
-epsw x -dcoin sia -dpool sia-asia1.nanopool.org:7777
-dwal (mywallet)
-dpsw x
-mode 0
-tt 70
-ftime 10 -r 90
when start it they say
"No pool specified"
then close off
i try to change 1-2 new pool but still not work.
so how to fix this?
ps. i use 1070 win10
i load CM.V10.2
and put this ...
EthDcrMiner64.exe
-epool eth-asia1.nanopool.org:9999
-ewal (mywallet)
-epsw x -dcoin sia -dpool sia-asia1.nanopool.org:7777
-dwal (mywallet)
-dpsw x
-mode 0
-tt 70
-ftime 10 -r 90
when start it they say
"No pool specified"
then close off
i try to change 1-2 new pool but still not work.
so how to fix this?
ps. i use 1070 win10
What you doing wrong is that all of those parameter must be in same line separated only by 1 space in between them. Since you putting it in several lines the program only reads first line and execute. That is the reason the program is reporting no pool found (because pool is in second line).
You have 2 options:
Option 1: put all that text in a single line in a batch file
Option 2: put only your post first line and put all other 8 lines in the file Config.txt
Try it then give feed back
Re: Claymore's Dual Ethereum AMD+NVIDIA GPU Miner v10.2 (Windows/Linux)
I recently put a machine on ETC and updated the drivers to the blockchain drivers, so the machine mines faster now, but is more unstable, even when I shut off dual mining. Can anyone share with me their run parameters for a Sapphire rx nitro (non-plus) 480 8g card? I am running windows 10 with v 10.2 with the August 23rd blockchain drivers. Would love a suggestion on how to get this to run stable and not have cards tripping out. I have tried raising and lowering voltages, lowering ethi to 1, and turning off dual mode, but not really found a stable set up. Appreciate any thoughts.
Thanks
Thanks
I'm using this config.
Code:
-epool eu1.ethermine.org:4444
-ewal xxxxx
#-eworker
-epsw x
-esm 0
-allpools 1
-mode 1
-estale 1
-ethi 16
-gser 2
-wd 1
-r 0
-dbg -1
-tt 75
-ttdcr 80
-ttli 85
-tstop 90
-cclock 900
-cvddc 800
-mclock 1750
-mvddc 800
-powlim -10
-ewal xxxxx
#-eworker
-epsw x
-esm 0
-allpools 1
-mode 1
-estale 1
-ethi 16
-gser 2
-wd 1
-r 0
-dbg -1
-tt 75
-ttdcr 80
-ttli 85
-tstop 90
-cclock 900
-cvddc 800
-mclock 1750
-mvddc 800
-powlim -10
Works like a charm on my 6x480 rig
If you are on Linux OS, may I suggest you do a simple test: stop miner, edit config.txt by adding comment (add #) on those 2 lines (# -cclock 900 and # -mclock 1750). Then restart the miner. Did you see any difference in the GPU´s hashrate?
Ethereum Pools Estimated Earnings vs Etherscan Ethereum Network Statistics
Here is my challenge to all you miners using Ethereum Mining Pools.
What is your ETH Pool rewarding you versus Ethereum Network Stats (Etherscan)?
Step by Step to calculate the % of earnings difference you need to answer the question:
For any pool you are using:
What is your ETH Pool rewarding you versus Ethereum Network Stats (Etherscan)?
Step by Step to calculate the % of earnings difference you need to answer the question:
For any pool you are using:
- go Etherscan Ethereum Network Statistics mining calculator: https://etherscan.io/ether-mining-calculator
- insert your average hashrate (same as is being reported by your Pool) and put zeros on power consumption and costs, leave other fields by default
- press Calculate button and take note your value for "Etherscan Profit per month"
- go to your Pool section of "Estimated earnings" and take note your "Estimated Earnings per month"
- calculate the difference in x% = ("Estimated Earnings per month" - "Etherscan Profit per month") / ("Etherscan Profit per month")
Yes, it seems it in online and mining again. It was down for about 5 hours.
Question now is: what about the 5 hours the miners were actively mining (those who did not switch/move to other pool) for this Pool? For who were they mining? Did they completely lost 5 hours production time?
Question now is: what about the 5 hours the miners were actively mining (those who did not switch/move to other pool) for this Pool? For who were they mining? Did they completely lost 5 hours production time?
It seems the biggest ETH Pool (https://ethermine.org/) is down for the last 4hrs. Does anyone confirms it is working again? What about all miners work of last 4hrs?
Some links (to check last 4h no updates):
https://etherchain.org/account/0xea674fdde714fd979de3edf0f56aa9716b898ec8 (last block mined 4hrs ago)
https://ethermine.org/stats (last block mined 4hrs ago)
https://ethermine.org/ (not updated for the last 4h)
https://twitter.com/etherchain_org (no confirmation on Twitter account if problem is solved)
cannot reach helpdesk either
Some links (to check last 4h no updates):
https://etherchain.org/account/0xea674fdde714fd979de3edf0f56aa9716b898ec8 (last block mined 4hrs ago)
https://ethermine.org/stats (last block mined 4hrs ago)
https://ethermine.org/ (not updated for the last 4h)
https://twitter.com/etherchain_org (no confirmation on Twitter account if problem is solved)
cannot reach helpdesk either
Re: Claymore's Dual Ethereum AMD+NVIDIA GPU Miner v10.1 (Windows/Linux)
hi,
ethermine.org pool is down for ~30 minutes, do you know anything about that issue?
ethermine.org pool is down for ~30 minutes, do you know anything about that issue?
I am not certain about that issue mate, but first thing to do is you must first check you cooling systems and other hardware. I've also encountered overheating but not like that pool is being downed. To determine that you must always back to basic so that with step by step troubleshooting you will eventually solve that problem with no hassle, and lesser time so you can continue the operation again.
If you go to Pool Ethermine website ( https://ethermine.org/ )you will see that last block was mined 4h ago... so I do not think it is the miner "cooling systems and other hardware"
Re: Claymore's Dual Ethereum AMD+NVIDIA GPU Miner v10.1 (Windows/Linux)
Step by step on how to Hack Cryptocurrency Miners (such as Claymore) with OSINT Techniques:
https://medium.com/@s3yfullah/hacking-cryptocurrency-miners-with-osint-techniques-677bbb3e0157
If they succeed then our miner will be mining for other ethereum address...
How to avoid being hacked by this system?
https://medium.com/@s3yfullah/hacking-cryptocurrency-miners-with-osint-techniques-677bbb3e0157
If they succeed then our miner will be mining for other ethereum address...
How to avoid being hacked by this system?
Strange,
since difficulty level reduced then why we came back to same levels of shares as before?
See blockchain level difficulty reduced: https://etherscan.io/chart/difficulty
Also the calculator: https://etherscan.io/ether-mining-calculator
So what it is going on?
since difficulty level reduced then why we came back to same levels of shares as before?
See blockchain level difficulty reduced: https://etherscan.io/chart/difficulty
Also the calculator: https://etherscan.io/ether-mining-calculator
So what it is going on?
Yes, I am already mining stable at 24Mhs on Windows 10 Pro. No problem there. Using NVidia 382.53
Now I would like to do the same using Linux.
Anyway already got answer from NVidea support: they recommend 384.90 version for Linux. Will download and try it today
Now I would like to do the same using Linux.
Anyway already got answer from NVidea support: they recommend 384.90 version for Linux. Will download and try it today
Re: Claymore's Dual Ethereum AMD+NVIDIA GPU Miner v10.0 (Windows/Linux)
Claymore's Dual Ethereum + Decred/Siacoin/Lbry/Pascal AMD+NVIDIA GPU Miner.
=========================
Latest version is v10.0:
(...)
TESTED NVIDIA DRIVERS (other versions are untested, they can be worse or better):
(...)
10xx cards in Windows 10 x64: just use latest 372.54 drivers from Nvidia website, note that you must have Win10 Anniversary update.
(...)
=========================
Latest version is v10.0:
(...)
TESTED NVIDIA DRIVERS (other versions are untested, they can be worse or better):
(...)
10xx cards in Windows 10 x64: just use latest 372.54 drivers from Nvidia website, note that you must have Win10 Anniversary update.
(...)
Is this information updated? Is it 372.54 version the last tested and the one recommended?
Profits projections - Online profit calculators too Optimistic?
Hi there,
I have been finding differences above 15% between the online Profit calculators and the projections from real mining.
Here one example for ETH mined with a 124MHs rig:
Cryptocompare: 0.816 ETH per month (124MHs rig)
https://www.cryptocompare.com/mining/calculator/eth?HashingPower=124&HashingUnit=MH%2Fs&PowerConsumption=1000&CostPerkWh=0
and
Ethermine pool stats: 0.646 ETH per month (124MHs rig)
ethermine.org
Any comments?
Do you find same differences?
I have been finding differences above 15% between the online Profit calculators and the projections from real mining.
Here one example for ETH mined with a 124MHs rig:
Cryptocompare: 0.816 ETH per month (124MHs rig)
https://www.cryptocompare.com/mining/calculator/eth?HashingPower=124&HashingUnit=MH%2Fs&PowerConsumption=1000&CostPerkWh=0
and
Ethermine pool stats: 0.646 ETH per month (124MHs rig)
ethermine.org
Any comments?
Do you find same differences?
Re: Claymore's Dual Ethereum AMD+NVIDIA GPU Miner v10.0 (Windows/Linux)
Claymore> Why not implement a mechanism to identify problematic GPU!? This should be already available! Stop the fan for 3 seconds on problematic GPU by pressing some key, or the other way.. spin it to 100%
Quote from: cjclm7
I think that is already done:
1. go your command line window and press anywhere on it with the mouse
2. then press the number of GPU you want to identify ( 0 or 1 or 2 or ...)
3. that GPU you have selected will stop mining immediately and you will see fan stopping
to activate it again just repeat process (press again same GPU number)
hope have been helpful
Quote from: staman
I can confirm that this solution DOESN'T work. I had tried this out days ago on 3 rigs, none of disabled GPU fan stop to work.. they still spinning even when disabled and not mining. Waited for 30+ minutes.. not effective way to identify the GPU
well... it might not work on your rigs but I assure you it works in mine. After 2 minutes the fans are stopped on those GPU i write the digit. So in few minutes I am able to identify all GPU thanks to Claymore software.
By the way this Claymore´s software option is there in the text every time you start the program. If you see the text after the GPU´s checking is written there this option.
(If you need I can take screen shot to show the initial text of Claymore´s running window)