citronick
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Activity: 1834
Merit: 1080
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July 24, 2016, 07:31:09 PM |
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I only set for ETH which is maximum -ethi 16 For any 2nd coin, I just let it rip and get the Nanos to work as hard as possible because these Nanos are undervolted using the Heliox rom, and overclocked a bit. So far these Nanos are heavily stretched but they run cool at 68-72c So just let them fly....
Did you try play with -dcri too? At value around 30-35 you will have about the same ETH mining speed, but higher ALT compared to pre-set values power bill is my major concern. I am sure -dcri 30-45 will further increase power consumption and heat.
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ps_jb (OP)
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July 24, 2016, 07:43:36 PM |
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power bill is my major concern.
I am sure -dcri 30-45 will further increase power consumption and heat.
Do you have a watt-meter? My 4x R9 390 + periferia give me 1320W from wall
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citronick
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July 24, 2016, 08:19:58 PM |
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power bill is my major concern.
I am sure -dcri 30-45 will further increase power consumption and heat.
Do you have a watt-meter? My 4x R9 390 + periferia give me 1320W from wall Yes I use the watt-meter. My ETH rigs are mining at home so there is not enough amps to go around. Until, I find a way to send these rigs to join my BTC miners to outsourced DC, need to underclock and undervolt as much as possible, to save on power.
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LoneRangir
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July 29, 2016, 03:58:54 AM |
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Four 480s: 2 x PowerColor 8GB Reference and 2 x XFX Reference 8GB Biostar Z170 Board w/ 4 physical x16 slots W7 & Latest Radeon drivers 630W from kill-o-watt 99 MH/s
Need to spend some time optimizing the MH/s / W
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ps_jb (OP)
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![](https://bitcointalk.org/Themes/custom1/images/post/xx.gif) |
July 29, 2016, 04:16:15 AM |
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Four 480s: 2 x PowerColor 8GB Reference and 2 x XFX Reference 8GB Biostar Z170 Board w/ 4 physical x16 slots W7 & Latest Radeon drivers 630W from kill-o-watt 99 MH/s
Need to spend some time optimizing the MH/s / W
Am I right that all cards are with stock settings?
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LoneRangir
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![](https://bitcointalk.org/Themes/custom1/images/post/xx.gif) |
July 29, 2016, 04:50:46 AM |
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Four 480s: 2 x PowerColor 8GB Reference and 2 x XFX Reference 8GB Biostar Z170 Board w/ 4 physical x16 slots W7 & Latest Radeon drivers 630W from kill-o-watt 99 MH/s
Need to spend some time optimizing the MH/s / W
Am I right that all cards are with stock settings? The only stable change I can make is to reduce the power setting for each card down to -25%. When I tweak anything else, the stability is crap. I will swap the current 750W for my 850W tomorrow to see if that affects anything. I've not attempted to flash the ROM on any cards.
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ps_jb (OP)
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July 29, 2016, 05:34:32 AM |
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I will swap the current 750W for my 850W tomorrow to see if that affects anything.
I dont think it is a PSU issue - but keep us posting on the results
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adaseb
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Activity: 3864
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July 29, 2016, 08:35:02 AM |
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Basically if you have any of the old Tahiti based cards (7950,7970,280X) your highest profit will be at +DCRI 60.
Right now with the current diff, you will make +40% extra per day compared to mining ETH alone.
However,
It will use about 30-40% more power, pretty much the exact same amount of power as in the litecoin mining days. A single 280x will use 300 watts almost.
So depending on what kind of setup you got, it might be worth it for you. Its basically no different than buying a few more 7970/280x GPUs but you don't have to actually buy anything since it will use the exact same amount of power.
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Mzie
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July 30, 2016, 07:21:07 AM |
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Mining ETC/DCR
XFX R9 380 4GB Temp - Maximum is 60° Undervolted Fan 60% 21Mh/s ETC 325 Mh/s DCR
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supersonic
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![](https://bitcointalk.org/Themes/custom1/images/post/xx.gif) |
July 30, 2016, 08:16:51 AM |
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![](https://ip.bitcointalk.org/?u=https%3A%2F%2Fi.gyazo.com%2F988ed2b489f56706bf481fb27d385721.png&t=665&c=4iGD4mjJoF6q3Q) Rig 1 ETC only 3xSapphire 290Vapor 1030core -75mV 1xSapphire 290X Tri-X 1040core -75mV 1xSapphire 390 Nitro 1040core -75mV Power draw 1250W Rig 2 ETC only 3xSapphire Nitro 390X 1080core -75mV 1xSapphire Nitro 390 1040core -75mV Power draw 1090W i have 31C outside in summer so its pretty hardcore, so im helping myself with external fan to blow off heat from rigs
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Nice from far but far from nice
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willi9974
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July 31, 2016, 04:26:16 PM |
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Nice topic, i will post my settings later
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adaseb
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August 01, 2016, 09:01:17 AM |
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After much testings,
If you have a 7970/280x, you are better off dual mining SIA with that card than buying another rig with a RX480. Mining SIA with +30 intensity will make you about the same money using about 6.66W/Mhs when sold for ETH.
Basically its efficient to dual mine only rather than ETH solo mine and sell SIA for ETH/BTC.
This is only true if the SIA difficulty and price are stable.
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willi9974
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August 01, 2016, 04:18:44 PM |
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Hello, here are my settings and the power what i have. 6 Cards from type Saphiere RX 480 8 GB SC Speed ~ 2300 MHs ETH Speed ~ 155 MHs GPU MHz 1000 MHz GPU Voltage 900mVolt MEM MHz 2200 MHz MEM Voltage 900mVolt Power @Wall ~ 1000 Watt (incl. Mainboard / CPU / etc. --> 70 Watt) Watt / MHs 6 Watt / MHs ETH ETH - Total Speed: 156.350 Mh/s, Total Shares: 19, Rejected: 0, Time: 00:16 ETH: GPU0 26.072 Mh/s, GPU1 26.026 Mh/s, GPU2 21.463 Mh/s, GPU3 25.976 Mh/s, GPU4 25.996 Mh/s, GPU5 26.067 Mh/s SC - Total Speed: 2345.239 Mh/s, Total Shares: 45, Rejected: 0 SC: GPU0 389.627 Mh/s, GPU1 377.211 Mh/s, GPU2 252.559 Mh/s, GPU3 385.632 Mh/s, GPU4 383.748 Mh/s, GPU5 384.098 Mh/s
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citronick
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Activity: 1834
Merit: 1080
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August 01, 2016, 05:48:42 PM |
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Hello, here are my settings and the power what i have. 6 Cards from type Saphiere RX 480 8 GB SC Speed ~ 2300 MHs ETH Speed ~ 155 MHs GPU MHz 1000 MHz GPU Voltage 900mVolt MEM MHz 2200 MHz MEM Voltage 900mVolt Power @Wall ~ 1000 Watt (incl. Mainboard / CPU / etc. --> 70 Watt) Watt / MHs 6 Watt / MHs ETH ETH - Total Speed: 156.350 Mh/s, Total Shares: 19, Rejected: 0, Time: 00:16 ETH: GPU0 26.072 Mh/s, GPU1 26.026 Mh/s, GPU2 21.463 Mh/s, GPU3 25.976 Mh/s, GPU4 25.996 Mh/s, GPU5 26.067 Mh/s SC - Total Speed: 2345.239 Mh/s, Total Shares: 45, Rejected: 0 SC: GPU0 389.627 Mh/s, GPU1 377.211 Mh/s, GPU2 252.559 Mh/s, GPU3 385.632 Mh/s, GPU4 383.748 Mh/s, GPU5 384.098 Mh/s hi willi - how many amps does this rig take? thanks
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willi9974
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August 01, 2016, 05:52:46 PM |
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my AmperMeter say 4,51 AMP why is this information important for you?
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citronick
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Activity: 1834
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August 01, 2016, 05:55:21 PM |
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my AmperMeter say 4,51 AMP why is this information important for you?
my warehouse only gave me 63amps, 3-phase. so i need to be careful on the watts and amps. I am undervolting as much as possible - to save on power bill But NOT so easy to undervolt 480s compared to 390s and Nanos.
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ps_jb (OP)
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August 02, 2016, 02:30:24 PM |
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my warehouse only gave me 63amps, 3-phase.
so i need to be careful on the watts and amps.
How much electricity in Germany nowadays? If you live close to Switzerland you can rent a warehouse with VERY cheap electricity
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willi9974
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August 02, 2016, 02:41:42 PM |
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at the moment i pay 28 Cent per KWh but after november i have a new contract with 19 Cent per KWh
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aleixoto
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August 03, 2016, 10:46:55 AM |
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at the moment i pay 28 Cent per KWh but after november i have a new contract with 19 Cent per KWh
i pay 0 for kW xDDD
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ps_jb (OP)
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August 03, 2016, 12:57:37 PM |
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i pay 0 for kW xDDD
Please put the statistics on your rig and hashing power
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