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Author Topic: 7 GPU Ethereum Mining Rig Hashrate Problem  (Read 2383 times)
lentyna (OP)
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July 18, 2017, 06:53:28 PM
 #21


The hash rate is quite good.


What about the power? Is it normal? 1100W and 1140W at the wall.

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HardFireMiner
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July 19, 2017, 01:47:05 PM
 #22


The hash rate is quite good.


What about the power? Is it normal? 1100W and 1140W at the wall.



Yes, the power consumption is normal but you can reduce it if you lower the GPU's core clock frequency to about 1150 mhz.

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lentyna (OP)
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July 19, 2017, 09:13:32 PM
 #23


The hash rate is quite good.


What about the power? Is it normal? 1100W and 1140W at the wall.



Yes, the power consumption is normal but you can reduce it if you lower the GPU's core clock frequency to about 1150 mhz.

I've tried, but if I go below 1200 MHz my hashrate drops significantly. Few cards I did 1166 MHz and they were ok.

I also tried dual mining but then the power jumps from 1100W to 1400W. Not worth it I guess.

HardFireMiner
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July 20, 2017, 10:55:49 AM
 #24


The hash rate is quite good.


What about the power? Is it normal? 1100W and 1140W at the wall.



Yes, the power consumption is normal but you can reduce it if you lower the GPU's core clock frequency to about 1150 mhz.

I've tried, but if I go below 1200 MHz my hashrate drops significantly. Few cards I did 1166 MHz and they were ok.

I also tried dual mining but then the power jumps from 1100W to 1400W. Not worth it I guess.



I mined in dual when Decreed was 35-45$, was profitable enough, for about 3 weeks I mine only 1 coin at a time, the power consumption and maximum usage of GPU's are not worth it, I also think they will go obsolete if mining for a long time in dual, not sure about this, I am just sure the GPU's will live more while mining 1 coin at a time.

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uzair253
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September 10, 2020, 08:14:53 PM
 #25




I've built 2 7 GPU mining rigs. Setup is the same for both of them.

Setup:
7 x Asus ROG Strix Radeon RX 580 8GB GPUs
1 x Z170A Gaming M5 Motherboard
1 x Inte Pentium Processor G4500 3.0 GHz CPU
1 x SanDisk SSD PLUS 120GB
2 x EVGA SuperNOVA 750 P2 PSUs
1 x Corsair Vengeance LPX 4GB DDR4 3000mhz
1 x Add2Psu PCU Adapter
7 x 16x to 1x Powered Riser Adapter Cards

OS: Xubuntu 16.04
Driver: AMDGPU-Pro Driver Version 17.10 for Ubuntu 16.04.2
Mining Software: Claymore Miner 9.5
Pool: ethermine.org

Claymore settings:

export GPU_MAX_ALLOC_PERCENT=100

./ethdcrminer64 -epool us1.ethermine.org:4444 -ewal MY_MINER.Miner02 -epsw x -etha 0 -mode 1 -tt 68 -ttli 79 -tstop 85 -allpools 1

GPUs are stock and not overclocked.

The problem is I'm getting very low hashrate on 2 of my GPUs. Maximum hashrate I've seen was only 141 Mh/s

Example logs:
ETH - Total Speed: 141.077 Mh/s, Total Shares: 5887, Rejected: 1, Time: 63:14
ETH: GPU0 4.140 Mh/s, GPU1 16.052 Mh/s, GPU2 24.174 Mh/s, GPU3 24.186 Mh/s, GPU4 24.185 Mh/s, GPU5 24.173 Mh/s, GPU6 24.168 Mh/s
--
ETH - Total Speed: 141.075 Mh/s, Total Shares: 5888, Rejected: 1, Time: 63:14
ETH: GPU0 4.140 Mh/s, GPU1 16.054 Mh/s, GPU2 24.178 Mh/s, GPU3 24.166 Mh/s, GPU4 24.182 Mh/s, GPU5 24.182 Mh/s, GPU6 24.173 Mh/s
--
ETH - Total Speed: 141.080 Mh/s, Total Shares: 5889, Rejected: 1, Time: 63:15
ETH: GPU0 4.140 Mh/s, GPU1 16.052 Mh/s, GPU2 24.173 Mh/s, GPU3 24.183 Mh/s, GPU4 24.175 Mh/s, GPU5 24.183 Mh/s, GPU6 24.175 Mh/s
--
ETH - Total Speed: 141.145 Mh/s, Total Shares: 5889, Rejected: 1, Time: 63:15
ETH: GPU0 4.140 Mh/s, GPU1 16.053 Mh/s, GPU2 24.198 Mh/s, GPU3 24.202 Mh/s, GPU4 24.183 Mh/s, GPU5 24.200 Mh/s, GPU6 24.169 Mh/s
--
ETH - Total Speed: 141.048 Mh/s, Total Shares: 5889, Rejected: 1, Time: 63:15
ETH: GPU0 4.140 Mh/s, GPU1 16.053 Mh/s, GPU2 24.177 Mh/s, GPU3 24.184 Mh/s, GPU4 24.170 Mh/s, GPU5 24.187 Mh/s, GPU6 24.137 Mh/s
--
ETH - Total Speed: 141.182 Mh/s, Total Shares: 5890, Rejected: 1, Time: 63:15
ETH: GPU0 4.141 Mh/s, GPU1 16.053 Mh/s, GPU2 24.195 Mh/s, GPU3 24.173 Mh/s, GPU4 24.189 Mh/s, GPU5 24.217 Mh/s, GPU6 24.215 Mh/s
--
ETH - Total Speed: 141.061 Mh/s, Total Shares: 5890, Rejected: 1, Time: 63:15
ETH: GPU0 4.140 Mh/s, GPU1 16.052 Mh/s, GPU2 24.179 Mh/s, GPU3 24.179 Mh/s, GPU4 24.161 Mh/s, GPU5 24.174 Mh/s, GPU6 24.176 Mh/s
--
ETH - Total Speed: 141.054 Mh/s, Total Shares: 5890, Rejected: 1, Time: 63:16
ETH: GPU0 4.140 Mh/s, GPU1 16.054 Mh/s, GPU2 24.172 Mh/s, GPU3 24.169 Mh/s, GPU4 24.176 Mh/s, GPU5 24.172 Mh/s, GPU6 24.172 Mh/s
--
ETH - Total Speed: 141.077 Mh/s, Total Shares: 5891, Rejected: 1, Time: 63:16
ETH: GPU0 4.139 Mh/s, GPU1 16.055 Mh/s, GPU2 24.171 Mh/s, GPU3 24.176 Mh/s, GPU4 24.172 Mh/s, GPU5 24.182 Mh/s, GPU6 24.181 Mh/s
--
ETH - Total Speed: 141.155 Mh/s, Total Shares: 5891, Rejected: 1, Time: 63:16
ETH: GPU0 4.140 Mh/s, GPU1 16.065 Mh/s, GPU2 24.170 Mh/s, GPU3 24.208 Mh/s, GPU4 24.213 Mh/s, GPU5 24.177 Mh/s, GPU6 24.182 Mh/s

Sometimes I'm even getting low hashrate on almost all GPUs:

ETH - Total Speed: 49.076 Mh/s, Total Shares: 5880, Rejected: 1, Time: 63:07
ETH: GPU0 4.140 Mh/s, GPU1 16.060 Mh/s, GPU2 5.616 Mh/s, GPU3 5.617 Mh/s, GPU4 2.945 Mh/s, GPU5 5.501 Mh/s, GPU6 9.197 Mh/s
--
ETH - Total Speed: 71.613 Mh/s, Total Shares: 5880, Rejected: 1, Time: 63:08
ETH: GPU0 3.015 Mh/s, GPU1 5.215 Mh/s, GPU2 5.273 Mh/s, GPU3 4.927 Mh/s, GPU4 4.747 Mh/s, GPU5 24.216 Mh/s, GPU6 24.220 Mh/s

What could be a problem here? I see mostly people using Windows for Ethereum 7 GPU mining, could it be OS problem? I prefer Linux for easier remote command line management and also I know it better than Windows.

I have the same issue on both on my rigs.

Thanks a lot ahead for any help.




i am facing the same problem with my gigabyte rx570 . i am using windows 10. i normally get 10-11mhs but once in a while after restarting or all of the sudden it run on 21-22 mhs but it start decreasing after that andf then got constant at 10 or 11 mhs
Can anyone please help me out ?
 
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