Just using trixx, slowly lowering core voltage until the system becomes unstable. I found 1.025 to work the best with my 7970s.
https://i.imgur.com/VNgaEQg.png
Topic: Consolidated Litecoin Mining Guide for 5xxx, 6xxx, and 7xxx GPUs - page 21. (Read 624200 times)
March 21, 2013, 08:44:31 PM
March 21, 2013, 07:16:53 PM
Don't forget about undervolting your GPUs, I finally got around to it with my 7970 x2 .
Running 1000/1660 , 8192, 2 gpu threads for 680 kh/s. (any higher concurrency with the new cgminer is causing issues for me, probably because that system only has 2gb system ram).
Undervolted to 1.025 dropped 150 watts at full load (kill-a-watt from outlet).
The new cgminer works great in my other system though with a 7850, getting 380kh/s with concurrency 12000, 1100/1300. Whereas the old cgminer with 8192 only got me 330kh/s at the same clocks and power usage.
I think the 7850s are the best bang for the buck now, I paid $150 for the card, came with 2 games that I sold for $50, so total investment $100 for 380kh/s, at 100 watts, payback is under 60 days.
Running 1000/1660 , 8192, 2 gpu threads for 680 kh/s. (any higher concurrency with the new cgminer is causing issues for me, probably because that system only has 2gb system ram).
Undervolted to 1.025 dropped 150 watts at full load (kill-a-watt from outlet).
The new cgminer works great in my other system though with a 7850, getting 380kh/s with concurrency 12000, 1100/1300. Whereas the old cgminer with 8192 only got me 330kh/s at the same clocks and power usage.
I think the 7850s are the best bang for the buck now, I paid $150 for the card, came with 2 games that I sold for $50, so total investment $100 for 380kh/s, at 100 watts, payback is under 60 days.
How are you undervolting at those clocks?
March 21, 2013, 03:39:58 PM
Don't forget about undervolting your GPUs, I finally got around to it with my 7970 x2 .
Running 1000/1660 , 8192, 2 gpu threads for 680 kh/s. (any higher concurrency with the new cgminer is causing issues for me, probably because that system only has 2gb system ram).
Undervolted to 1.025 dropped 150 watts at full load (kill-a-watt from outlet).
The new cgminer works great in my other system though with a 7850, getting 380kh/s with concurrency 12000, 1100/1300. Whereas the old cgminer with 8192 only got me 330kh/s at the same clocks and power usage.
I think the 7850s are the best bang for the buck now, I paid $150 for the card, came with 2 games that I sold for $50, so total investment $100 for 380kh/s, at 100 watts, payback is under 60 days.
Running 1000/1660 , 8192, 2 gpu threads for 680 kh/s. (any higher concurrency with the new cgminer is causing issues for me, probably because that system only has 2gb system ram).
Undervolted to 1.025 dropped 150 watts at full load (kill-a-watt from outlet).
The new cgminer works great in my other system though with a 7850, getting 380kh/s with concurrency 12000, 1100/1300. Whereas the old cgminer with 8192 only got me 330kh/s at the same clocks and power usage.
I think the 7850s are the best bang for the buck now, I paid $150 for the card, came with 2 games that I sold for $50, so total investment $100 for 380kh/s, at 100 watts, payback is under 60 days.
March 21, 2013, 10:25:35 AM
hi no chance my ati 7950 mine at 560 kh/s whit reaper and cgminer whit gpu@950 and memory to default!
i have tried the special setting but it doesn't change nothing!
any suggestions or please post your setting file and clock!
tk
i have tried the special setting but it doesn't change nothing!
any suggestions or please post your setting file and clock!
tk
March 21, 2013, 09:26:09 AM
Hi. Im a mining noob. How many LTC can I expect to get in 24h with a 7970?
March 21, 2013, 04:07:57 AM
Hashing rate in notroll more than halved, everybody has gone back to BTC with the drop in profitability :S
March 20, 2013, 04:54:10 PM
Guide updated for how to use high thread concurrencies in cgminer.
March 20, 2013, 11:00:07 AM
Nice work.
But some problem/question..
I have 2x7970
I use CGminer, not reapter and i need use half(desktop use) (like -I15) GPU [0-0 Tahiti] but GPU [0-1 Tahiti] going to half GPU usage if I set -I15 first(0-0) GPU. Speed is halfing GPU 0-0 but usage 0-0 is 97-99% .
Everything what i try, only gpu 0-1 usage going down..
Some fix or ideas?
Sorry 4 bad english:
But some problem/question..
I have 2x7970
I use CGminer, not reapter and i need use half(desktop use) (like -I15) GPU [0-0 Tahiti] but GPU [0-1 Tahiti] going to half GPU usage if I set -I15 first(0-0) GPU. Speed is halfing GPU 0-0 but usage 0-0 is 97-99% .
Everything what i try, only gpu 0-1 usage going down..
Some fix or ideas?
Sorry 4 bad english:
Make sure you have speed step/cool and quiet disabled in the bios to prevent throttling of the CPU at low usage, sometimes this can screw up mining
March 20, 2013, 10:58:50 AM
Where are you guys using this command? I do not use a bat file, I just start cgminer with my conf file.... cgminer -c cgminer.conf
I haven't had any luck with 11.3 and I'm sure this would fix it. Though I'm hesitant to try to "fix" anything considering my speeds are already 650 to 700 kh/s depending on the card.
Thanks in advance!
I haven't had any luck with 11.3 and I'm sure this would fix it. Though I'm hesitant to try to "fix" anything considering my speeds are already 650 to 700 kh/s depending on the card.
Thanks in advance!
Use it in windows command console (cmd.exe) or just use my guiminer (which doesn't permanently alter your registry/environmental variables)
March 20, 2013, 05:24:32 AM
Where are you guys using this command? I do not use a bat file, I just start cgminer with my conf file.... cgminer -c cgminer.conf
I haven't had any luck with 11.3 and I'm sure this would fix it. Though I'm hesitant to try to "fix" anything considering my speeds are already 650 to 700 kh/s depending on the card.
Thanks in advance!
I haven't had any luck with 11.3 and I'm sure this would fix it. Though I'm hesitant to try to "fix" anything considering my speeds are already 650 to 700 kh/s depending on the card.
Thanks in advance!
March 20, 2013, 05:18:27 AM
Nice work.
But some problem/question..
I have 2x7970
I use CGminer, not reapter and i need use half(desktop use) (like -I15) GPU [0-0 Tahiti] but GPU [0-1 Tahiti] going to half GPU usage if I set -I15 first(0-0) GPU. Speed is halfing GPU 0-0 but usage 0-0 is 97-99% .
Everything what i try, only gpu 0-1 usage going down..
Some fix or ideas?
Sorry 4 bad english:
But some problem/question..
I have 2x7970
I use CGminer, not reapter and i need use half(desktop use) (like -I15) GPU [0-0 Tahiti] but GPU [0-1 Tahiti] going to half GPU usage if I set -I15 first(0-0) GPU. Speed is halfing GPU 0-0 but usage 0-0 is 97-99% .
Everything what i try, only gpu 0-1 usage going down..
Some fix or ideas?
Sorry 4 bad english:
March 20, 2013, 12:57:50 AM
For windows users who can't set high thread concurrencies with the latest cgminer, use this in your batch file first before starting cgminer:
Code:
setx GPU_MAX_ALLOC_PERCENT 100
Can confirm this works, although it's kind of a sloppy fix but only because of the way windows does environment variables.
Added to my guiminer setting the env var locally instead of globally when running cgminer with high thread concurrencies
March 19, 2013, 09:25:20 PM
For windows users who can't set high thread concurrencies with the latest cgminer, use this in your batch file first before starting cgminer:
Code:
setx GPU_MAX_ALLOC_PERCENT 100
Saw this in the other thread, tried, works on my 7950.
Previous high with Cgminer was 550kh/s on 2.11.3 (8192 concurrency, 1k/1750 @ 13agg)
Now can hit 620kh/s (same as reaper) with this, (16384 concurrency, 1k/1750 @ 19agg)
No Hw errors.
Thanks! Great find!
Can you please tell us your other command line settings too?
--thread-concurrency 16384 -g 1 -i 19
win7 12.10 64 bit drivers and whatever sdk comes with it.
i've tried 12.8 and it doesnt work well for me. neither do any of the 13's.
March 19, 2013, 05:01:59 AM
hi I'm interesting too in the right setting for 7950!
Actually i have 530 with reaper, and the same whit cgminer... I hope to increase it!!
Actually i have 530 with reaper, and the same whit cgminer... I hope to increase it!!
March 19, 2013, 02:12:56 AM
For windows users who can't set high thread concurrencies with the latest cgminer, use this in your batch file first before starting cgminer:
Code:
setx GPU_MAX_ALLOC_PERCENT 100
Saw this in the other thread, tried, works on my 7950.
Previous high with Cgminer was 550kh/s on 2.11.3 (8192 concurrency, 1k/1750 @ 13agg)
Now can hit 620kh/s (same as reaper) with this, (16384 concurrency, 1k/1750 @ 19agg)
No Hw errors.
Thanks! Great find!
Can you please tell us your other command line settings too?
March 18, 2013, 09:50:10 PM
I found I can only use the --thread-concurrency flag at the end of all of the other args/flags now or else cgminer crashes.
March 18, 2013, 09:15:29 PM
I'm running two 7950s in a an AsRock 870 Extreme 3 (older version). I have two issue that are probably related.
When I try to mine litecoin, I get an extremely high hashrate, but 0:0 for shares accepted:stale. The GPU is at like 30% usage.
I also have two 2GB sticks of RAM, but the system only recognizes 2GB total.
I am in Windows 7 64bit using Reaper and CGMiner. The only other odd thing that could be affecting things is that I'm using ESATA as a system drive, but I doubt that;s the issue...
Please help, I have more card to add too!
When I try to mine litecoin, I get an extremely high hashrate, but 0:0 for shares accepted:stale. The GPU is at like 30% usage.
I also have two 2GB sticks of RAM, but the system only recognizes 2GB total.
I am in Windows 7 64bit using Reaper and CGMiner. The only other odd thing that could be affecting things is that I'm using ESATA as a system drive, but I doubt that;s the issue...
Please help, I have more card to add too!
March 18, 2013, 07:37:09 PM
For windows users who can't set high thread concurrencies with the latest cgminer, use this in your batch file first before starting cgminer:
Code:
setx GPU_MAX_ALLOC_PERCENT 100
Okay, I will try this and then add the shell command to GUIminer if it works okay.
March 18, 2013, 07:22:32 PM
For windows users who can't set high thread concurrencies with the latest cgminer, use this in your batch file first before starting cgminer:
Code:
setx GPU_MAX_ALLOC_PERCENT 100
Saw this in the other thread, tried, works on my 7950.
Previous high with Cgminer was 550kh/s on 2.11.3 (8192 concurrency, 1k/1750 @ 13agg)
Now can hit 620kh/s (same as reaper) with this, (16384 concurrency, 1k/1750 @ 19agg)
No Hw errors.
March 18, 2013, 07:12:38 PM
For windows users who can't set high thread concurrencies with the latest cgminer, use this in your batch file first before starting cgminer:
Code:
setx GPU_MAX_ALLOC_PERCENT 100
Jump to: