Za1n
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Activity: 1078
Merit: 1011
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April 23, 2017, 12:14:56 AM
Last edit: April 23, 2017, 12:25:57 AM by Za1n |
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with amd what you read on afterburner is not power consume to the wall. there are big differences..
This is true, I got similar results as the OP, but my at-the-wall draw per card (6 rig system) was 108 watts after subtracting the PSU efficiency 92% and system idle draw of 50 watts. My GPU-z fluctuates around 80-85 watts, so I think the end results would be similar. EDIT: To clarify I am getting 30 Mh/s per card (180 rig total) with core clocks set at 1135 and memory clocks set to 2275, core voltage set to 925 mv, memory voltage left at default. I did do the bios mod using the jaschaknack (sp?) PolarisBiosEditor by copying the 1750 memory strap (Samsung memory) from 1:1750 to 1:2000. I did try to copy the lower 1625 strap, but the system was unstable. For full disclosure, I am also using the Crimson ReLive Edition 17.4.3 drivers on a Windows 10 64 bit system. Bonus, at least with the RX580 I did not have to apply the pixel patch after modding the BIOS. My raw power usage data is: Total rig draw: 760W (kill-a-watt reading) PSU 92% efficient (8% inefficient): 760 - 60.8 = 699.2W (or just 760*0.92). System idle draw (50 watts): 700 - 50 = 650W Draw per card: 650 / 6 = ~108W |
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Za1n
Legendary
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Activity: 1078
Merit: 1011
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April 23, 2017, 12:18:13 AM |
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what software can i use to change the core volt and mem volt?
If you use Claymore you can use -cclock, -mclock, -cvddc, and -mvddc parameters when you launch the miner. See the Readme file in the Claymore directory for usage information. Since Wattool seems to not read values correctly on the newer cards, I been using the miner directly to control the clocks and voltages, GPU-z seems to confirm it is working as intended. |
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Biodom
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Activity: 3738
Merit: 3844
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April 23, 2017, 12:19:31 AM |
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1. can you run RX 570/580 and bios mod cards using Win 7 instead of win 10? In am tired of win 10 and would like to try 7 if possible.
2. Does anybody know if all those Win 7 pro codes that UK people are selling on ebay are any good and can be activated reliably?
(prices are between $6 and $9)
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Apneal (OP)
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April 23, 2017, 01:12:59 AM |
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very usefull info!.. if i take a 480 to the same numbers 1300 clock - 2100 mem, can i get the same Mh ?
[/quote]
It has the same number of compute units/cores/architecture, so mostly yes, with a 480 you'll probably need much more voltage/power to achieve the same core clock however, and the memory has to be tuned beyond just setting the clock
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ps_jb
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April 23, 2017, 01:15:11 AM |
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My raw power usage data is:
Total rig draw: 760W (kill-a-watt reading)
PSU 92% efficient (8% inefficient): 760 - 60.8 = 699.2W (or just 760*0.92).
System idle draw (50 watts): 700 - 50 = 650W
Draw per card: 650 / 6 = ~108W
I would say - an excellent results! |
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ps_jb
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April 23, 2017, 01:29:07 AM |
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So my Sapphire Nitro+ RX580 Limited Edition cards came in today
Did you buy $279 version on Newegg? |
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Apneal (OP)
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April 23, 2017, 01:32:39 AM |
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So my Sapphire Nitro+ RX580 Limited Edition cards came in today
Did you buy $279 version on Newegg? Yep thats the one |
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Za1n
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Activity: 1078
Merit: 1011
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April 23, 2017, 01:38:37 AM |
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I made a few more changes, namely I reduced the cvddc setting a bit more to 900 mv and decreased the core clocks from 1135 down to 1125 and was able to shave a bit more off my power consumption, which is closer to 102 watt/card now. I also tried Claymore 9.1 using -asm 1 and -dcri 8 and I can get 30.5 Mh/s per card solo mining with the above power draws. If I try dual mining with Decred my wattage shoots up past 120-125 watt/card.
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Apneal (OP)
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April 23, 2017, 02:01:45 AM
Last edit: April 24, 2017, 04:36:48 AM by Apneal |
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I got an interesting result testing. The Nitro+ RX580 seems perfectly happy to run on just a single 8-pin power connector. However from my tests, this reduced hashrates by 1% and power consumption by 1% consistently The 1% drop seems to only have been temporary.
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yoonline
Newbie
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Activity: 51
Merit: 0
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April 23, 2017, 04:27:05 AM |
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here are my numbers :
rx 480 4gb
ETH: 30.3 mh
DCR: 1030 mh
clock 1250
mem 2100
107W afterburner
temp 65~
i cannot go furter because the themp will jump and surpass the 75º at 100% fan :S
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Jamievs
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April 23, 2017, 05:57:59 AM |
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What are the dual mine speeds? (stock and modded). All topics only mention ETH mining..
I've been continuing to tweak and also optimizing for dual mining. So far: Eth: 30.5 Mh/s Dcr: 1130 MH/s VDDC: 0.877 Core: 1300 Mem: 2100 Mem voltage: 0.9 Strap: Custom mix Mem Errors: 0/min Power: 125W NOTE: If you don't undervolt/limit power, it easily dual mines 30.5 MH/s + 1450 MH/s Dcr Thanks for answering my question. That looks way better as the 480's |
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Pennywis3
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April 23, 2017, 08:08:48 AM |
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UPDATE2:
The Nitro+ RX580 seems perfectly happy to run on just a single 8-pin power connector. However from my tests, this reduced hashrates by 1% and power consumption by 1% consistently
This is the news i've been waiting for, thanks a lot for sharing. Im geting 12 Nitro+ to play with  I hate using 2xPSU on my rigs, and mostly have EVGA G2 1300w, which without adapters cant connect 6x6+8 pin. Great news indeed  |
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yoonline
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Activity: 51
Merit: 0
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April 23, 2017, 07:44:52 PM
Last edit: April 23, 2017, 08:18:47 PM by yoonline |
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@Apneal can you post a link to the Uber-mix v2.3 please, i dont understand, it is a app? i want to custom my timings
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shadowhlohavec
Full Member
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Activity: 207
Merit: 100
NoizChain
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April 23, 2017, 10:21:48 PM |
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here are my numbers :
rx 480 4gb
ETH: 30.3 mh
DCR: 1030 mh
clock 1250
mem 2100
107W afterburner
temp 65~
i cannot go furter because the themp will jump and surpass the 75º at 100% fan :S
could you please share your gpu brand + memory type and your bios mod? |
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jstefanop
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Activity: 2090
Merit: 1394
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April 23, 2017, 10:24:17 PM |
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So my Sapphire Nitro+ RX580 Limited Edition cards came in today
Did you buy $279 version on Newegg? Yep thats the one Never understood why people buy the 480/580 for a $100 premium when you can pick up the 470/570 for 170-180 and it hashes the same. |
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Raja_MBZ
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Activity: 1862
Merit: 1505
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April 23, 2017, 10:33:05 PM |
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Well, if you're carrying RX 480's or 470's, you'll be feeling good to know that RX 580 are not better than RX 480 for mining.  I personally don't want any new GPU to come up with huge hash rate upgrade and de-value my current rigs. |
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Elder III
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April 24, 2017, 01:36:04 AM |
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I would go for whatever is the cheapest deal personally. The 570s and 580s are priced about the same as the 470s and 480s, at least in the USA. I think if the price is within 10% I'd get the 500 series just for a little better resale value and possibly slightly higher hashrate (equal at least).
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Jamievs
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April 24, 2017, 06:42:29 AM |
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What are the dual mine speeds? (stock and modded). All topics only mention ETH mining..
I've been continuing to tweak and also optimizing for dual mining. So far: Eth: 30.5 Mh/s Dcr: 1130 MH/s VDDC: 0.877 Core: 1300 Mem: 2100 Mem voltage: 0.9 Strap: Custom mix Mem Errors: 0/min Power: 125W NOTE: If you don't undervolt/limit power, it easily dual mines 30.5 MH/s + 1450 MH/s Dcr I am a newbie when it comes to clocking and stuff but I am willing to learn. Are those settings you can set in watttool? |
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