Using these settings: https://bitcointalksearch.org/topic/m.1838196
Bought these cards: http://www.newegg.com/Product/Product.aspx?Item=N82E16814125413
Topic: LTC Rig - 4 x 7970 - Only Getting 560KHs Per Card - Tips to Increase? (Read 2248 times)
April 19, 2013, 03:02:07 PM
Figured I'd update this topic. Those Gigabytes came in and WOW. Getting 725 each easily at 72C. Here's a screen cap:
Using these settings: https://bitcointalksearch.org/topic/m.1838196
Bought these cards: http://www.newegg.com/Product/Product.aspx?Item=N82E16814125413
Using these settings: https://bitcointalksearch.org/topic/m.1838196
Bought these cards: http://www.newegg.com/Product/Product.aspx?Item=N82E16814125413
April 17, 2013, 12:01:21 PM
They are not getting those kinds of numbers without really pushing the cards
I have 2 7970 and get at most 650 on each without running it really hard. I had trouble with cgminer and the 7970's and got much better hash with reaper, but I think you just add thread concurrency to cgminer and you can get good hash with it too. The TC is important and make sure you have no hardware errors.
I have 2 7970 and get at most 650 on each without running it really hard. I had trouble with cgminer and the 7970's and got much better hash with reaper, but I think you just add thread concurrency to cgminer and you can get good hash with it too. The TC is important and make sure you have no hardware errors.
April 17, 2013, 10:13:37 AM
That 700+ is certainly not an embellishment. Even ckolivas, CGMiner's author, is pulling 725 here without overvolting. He is using a Sapphire card, I believe.
https://bitcointalksearch.org/topic/m.1635964
But from what is displayed here (and yes, there are screen caps), the Gigabyte cards do produce 700+ with minor tweaking.
https://github.com/litecoin-project/litecoin/wiki/Mining-hardware-comparison#wiki-ATI_AMD_GPUs
https://bitcointalksearch.org/topic/m.1635964
But from what is displayed here (and yes, there are screen caps), the Gigabyte cards do produce 700+ with minor tweaking.
https://github.com/litecoin-project/litecoin/wiki/Mining-hardware-comparison#wiki-ATI_AMD_GPUs
April 17, 2013, 12:17:24 AM
Quote
I've tried 12.8, 13.1, 13.3 and nothing yields anything like the above, at least from my tunings. I tried -g2 with lower TC and pretty much every different config I could find. Essentially, I am just assuming these cards are not good for hashing and that's that.
I think that 700 number is a bit of an embellishment for most people ... I have yet to see a screen cap with it. I'm told by the author of cgminer (in that thread I linked) that over-volting is a bad way to squeeze some extra hashes out of your cards...but I guess it really depends on if it's worth the trouble...
April 16, 2013, 11:18:51 PM
I'm getting about 590 per now on 12.10 with the following but this will only be for a few more days. Just bought 4 of the Gigabyte cards that everybody seems to have 700+ with. I'm just gonna RMA these XFXs as soon as those babies come in.
I've tried 12.8, 13.1, 13.3 and nothing yields anything like the above, at least from my tunings. I tried -g2 with lower TC and pretty much every different config I could find. Essentially, I am just assuming these cards are not good for hashing and that's that.
Code:
setx GPU_MAX_ALLOC_PERCENT 100
cd C:\Users\LTCMiner\Desktop\Mining\Dr_12.10\cgminer-2.11.4-windows
cgminer -o stratum+tcp://notroll.in:3333 -u XXXXX -p XXXXX --scrypt -I 13 --auto-fan --temp-overheat 85 --temp-target 75 --thread-concurrency 22400 --gpu-memclock 1725,1775,1775,1775 --gpu-engine 1100,1145,1145,1145
\\The one card running lower crashes at 1775/1145 but runs stable at the set clocks. Still pushes 580.
I've tried 12.8, 13.1, 13.3 and nothing yields anything like the above, at least from my tunings. I tried -g2 with lower TC and pretty much every different config I could find. Essentially, I am just assuming these cards are not good for hashing and that's that.
April 15, 2013, 06:51:22 PM
Might be of some help: https://bitcointalksearch.org/topic/first-time-running-4x7970s-need-help-tweaking-settings-161047
I ran into a similar issue and downgraded my drivers (12.10->12.
and that helped on Linux significantly.
I haven't over-volted the cards though. Getting stable 2250kh/s on 4x7970s with the settings listed on that thread.
I ran into a similar issue and downgraded my drivers (12.10->12.
and that helped on Linux significantly. I haven't over-volted the cards though. Getting stable 2250kh/s on 4x7970s with the settings listed on that thread.
April 15, 2013, 06:21:22 PM
Unfortunately two GPU threads doesn't help. In fact, it lowers it significantly. I can increase the intensity though with 2 but that only yields upwards of 530 which doesn't compare to the 590 I can get without it. I just think I need to buy a different brand card. I can still return these. Anybody know which cards will produce 700+?
April 15, 2013, 03:32:25 PM
7970s that only run up to intensity 13 tend to like -g 2. Try it and see if it improves your hashrate
April 15, 2013, 01:07:37 PM
stock voltage on these should be 1069 mv i think. I was just messing around with setting to see what I could get out of them.
April 15, 2013, 12:59:57 PM
I have my cards set to this in afterburner: Core Voltage 1100 mV Power Limit: 0% (you can bump this up to 10% but your cards may run a little hot) Core Clock: 1075 MHz Memory Clock: 1650 MHz
cgminer settings:
setx GPU_MAX_ALLOC_PERCENT 100
cgminer --scrypt --auto-fan --temp-target 79 --thread-concurrency 24000 --intensity 20 --worksize 256 -g 1 -v 1
cgminer settings:
setx GPU_MAX_ALLOC_PERCENT 100
cgminer --scrypt --auto-fan --temp-target 79 --thread-concurrency 24000 --intensity 20 --worksize 256 -g 1 -v 1
Is that overvolting them? Im not sure of the stock voltage is why I ask.
April 15, 2013, 12:56:41 PM
I have my cards set to this in afterburner: Core Voltage 1100 mV Power Limit: 0% (you can bump this up to 10% but your cards may run a little hot) Core Clock: 1075 MHz Memory Clock: 1650 MHz
cgminer settings:
setx GPU_MAX_ALLOC_PERCENT 100
cgminer --scrypt --auto-fan --temp-target 79 --thread-concurrency 24000 --intensity 20 --worksize 256 -g 1 -v 1
cgminer settings:
setx GPU_MAX_ALLOC_PERCENT 100
cgminer --scrypt --auto-fan --temp-target 79 --thread-concurrency 24000 --intensity 20 --worksize 256 -g 1 -v 1
April 15, 2013, 11:50:24 AM
Download and install afterburner: https://bitcointalksearch.org/topic/msi-afterburner-unofficial-overclocking-guide-18102
Every card is going to be different but these are the settings that are working for me right now and I am averaging 620-640 kh/s
GPU engine 1075 MHz - Memory 1650 MHz
This is the GPU that I am using if anyone cares to know: http://www.newegg.com/Product/Product.aspx?Item=N82E16814202030
Here is a link to other settings people have used:
https://github.com/litecoin-project/litecoin/wiki/Mining-hardware-comparison#wiki-ATI_AMD_GPUs
Every card is going to be different but these are the settings that are working for me right now and I am averaging 620-640 kh/s
GPU engine 1075 MHz - Memory 1650 MHz
This is the GPU that I am using if anyone cares to know: http://www.newegg.com/Product/Product.aspx?Item=N82E16814202030
Here is a link to other settings people have used:
https://github.com/litecoin-project/litecoin/wiki/Mining-hardware-comparison#wiki-ATI_AMD_GPUs
Care to give a little more info? Ive got the same cards and can only squeeze about 530kh/s out of each. Your settings give me 480kh/s
April 15, 2013, 11:32:24 AM
Download and install afterburner: https://bitcointalksearch.org/topic/msi-afterburner-unofficial-overclocking-guide-18102
Every card is going to be different but these are the settings that are working for me right now and I am averaging 620-640 kh/s
GPU engine 1075 MHz - Memory 1650 MHz
This is the GPU that I am using if anyone cares to know: http://www.newegg.com/Product/Product.aspx?Item=N82E16814202030
Here is a link to other settings people have used:
https://github.com/litecoin-project/litecoin/wiki/Mining-hardware-comparison#wiki-ATI_AMD_GPUs
Every card is going to be different but these are the settings that are working for me right now and I am averaging 620-640 kh/s
GPU engine 1075 MHz - Memory 1650 MHz
This is the GPU that I am using if anyone cares to know: http://www.newegg.com/Product/Product.aspx?Item=N82E16814202030
Here is a link to other settings people have used:
https://github.com/litecoin-project/litecoin/wiki/Mining-hardware-comparison#wiki-ATI_AMD_GPUs
April 15, 2013, 12:14:42 AM
Drivers 12.10 yield around 590 per card, relatively stable. Its only been going for like 10 minutes, but, I'll keep messing with it. Will probably give 12.8 a shot tomorrow.
12.10 ->> Mem 1800, Engine 1145, I 13
12.10 ->> Mem 1800, Engine 1145, I 13
April 14, 2013, 11:49:33 PM
i use 13.1 did not had the time to check out other versions
April 14, 2013, 09:43:47 PM
Lol I refuse to think that is the maximum output. There must be a way. What drivers are you using? I am thinking about giving the 12.8 a shot.
April 14, 2013, 09:05:32 PM
i got a xfx 7950 double D and i get 530 per card this brand does not seems to be fit for mining
April 14, 2013, 02:26:10 PM
So, I just built this rig yesterday and after some tweaking, I've gotten it to work stable at the following:
But that is only yielding around 560KHs per card and I know they can produce more. I have 4 XFX Double D Black Edition 7970s.
Win 7 x64 Enterprise. Drivers are 13.3.
I have tried in reaper with similar settings but it mines at a 560KHs average too.
The good thing is there are 0 HW errors and the WU ratio is .93.
Any ideas on how I could get these babies past 600? 650? 700? Increasing the Intensity lowers the hash-rate significantly.
Thanks in advance!
RESOLVED. Check below. Bought Gigabytes:
Code:
setx GPU_MAX_ALLOC_PERCENT 100
--scrypt -I 13 --auto-fan --temp-target 75 --gpu-engine 1105 --gpu-memclock 1775 --shaders 2048 --thread-concurrency 22400
But that is only yielding around 560KHs per card and I know they can produce more. I have 4 XFX Double D Black Edition 7970s.
Win 7 x64 Enterprise. Drivers are 13.3.
I have tried in reaper with similar settings but it mines at a 560KHs average too.
The good thing is there are 0 HW errors and the WU ratio is .93.
Any ideas on how I could get these babies past 600? 650? 700? Increasing the Intensity lowers the hash-rate significantly.
Thanks in advance!
RESOLVED. Check below. Bought Gigabytes:
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