Print Page - 350-375 khash/s on HD 7970

Hi,

I wanted to try this bitmining thing on my HD 7970 gpu, as I have never done any bitmining before I decided to use GUIMiner.
I created an OpenCL miner, and started mining, but I am only getting 350-375 khash/s, and everybody else is talking Mhash/s not khash/s.
So what could I be doing wrong?
Please keep in mind that I am a total noob at bitmining.

Best regards
msalf

Quote from: msalf on April 22, 2012, 11:23:40 AM

Are you sure you selected the GPU not the CPU?

I would try to set in the Flag Box "-v 2 -w 256" or even "-v 4 -w 236".

For further help you should check if anything graphical runs in background (video,music etc playing). Very bad on GPU usuage is the always loved Flash(tm) plugin of your browser.
Open your Task Manager and check for CPU Load.

otherwise i can suggest using cgminer (find it on http://ck.kolivas.org/apps/cgminer (http://ck.kolivas.org/apps/cgminer))
there is a very easy to understand manual for configurating. Another big advantage is the very well output of the app. So Error Detection is easier.
use --debug for a lot of output.

my TipBox:): 1Nrs2jTZddhhZEbawR27ambdiz7FnvdBH9

Quote from: kmettke on April 22, 2012, 12:05:50 PM

With "-v 2 -w 256" my hash rate has doubled, but 700-800 khash/s stil seems low?

The CPU load is 100% and when checking with GPU-Z the GPU load is 44-5%. So it would seem that it is running on the CPU rather than the GPU despite i selected device "[0-0] Tahiti"?

I would really prefer using GUIMiner, but I will take a look at cgminer.

Sounds like you're running on your CPU (which is recognized as an OpenCL device)

You may want to try out the newest version of Phoenix (ver 2) which will has the option to automatically disable CPU mining - I believe it is already disabled by default...

If you need help setting up the config file send me a message and I'll write one for you, I'll just need a list of CPU(s) and GPU(s) in your system.

Donations are much appreciated and can be sent to: 1GNvHH5epzxa7iL8oVVt7Pcgpu5eGbyRcD

Maybe You should check on your AMD OCL APP SDK. And your graphic driver. On a friends machine some OpenCL optimizations forced Opencl Compiler to Use CPU due they are not (yet) implemented in GPU code. amd_printf for example can behave like that. Are there any other devices shown for usage? I am asking that because maybe guiminer messed up to enumerate right through the opencl devices since all amd cpu's are recognized and usuable devices.
u may pm me if u still having troubles.

PLEASE goodsir!, You will NOT regret using CGminer!!!, I procrastinated from using it for MONTHS, And to this day i regret all those days that i wasted staying with GUIminer, Trust me dude, CGminer is DEFINITLY what you want Use that, Or Since you have a 7970 Diablo Miner,

CGMiner!!
CGMiner!!
CGMiner!!
CGMiner!!

It will pick all the settings and do everything for you once you get it running!, Seriously! Use it!

Quote from: JackRabiit on May 06, 2012, 04:07:19 AM

Please note your mileage may vary. With my 5870s, phoenix through guiminer gives a higher hash rate and lower temperatures. With my 7970 however, I found cgminer to be best.

Quote from: JackRabiit on May 06, 2012, 04:07:19 AM

https://ozcoin.net/content/win7-cgminer-setup-guide
is a guide to cgminer with a .bat file

-I 9 -k poclbm --auto-fan --gpu-engine 1100-1180 --auto-gpu --gpu-vddc 0.87 --gpu-memdiff -150
gets me 700Mhash/s per card
hope thats a help :)

Quote from: Graet on May 06, 2012, 06:17:59 PM

What driver version? I've got an XFX 7970 black edition, and it won't go above 1125. Using the line you gave above causes the GPU to reset itself. I changed it to max 1125, and I'm getting > 650 now. Before I was averaging about 650. I'm using 12.3 on Windows 7x64.

I also took out the --auto-fan piece, as it was causing it to run at 75%. Right now it's running at 50%, which is more tolerable.

Quote from: Graet on May 06, 2012, 06:17:59 PM

Quote from: JackRabiit on May 06, 2012, 04:07:19 AM

~~Ugh, I do not know what I am doing wrong but I tried to do this and I am getting 292 mhash~~

Nevermind... tweeked AB a little bit and got her up to 700 range.

Thanks a bunch!

Quote from: msalf on April 22, 2012, 11:23:40 AM

Have you fixed the issue?

I'm also having problem setting this card. using the settings above i have driver crashes every half an hour.

I have 3xXFX 7970 Black edition. I get to 1.93GH/s with the following:
-I 9 -k poclbm --auto-fan --gpu-engine 1050-1075 --auto-gpu --gpu-vddc 0.87 --gpu-memdiff -150

I get >650 a card but want to push it above the 700 without the crashes.

If somebody uses the specific card what are your settings?

Thanks,

Yaron.

Quote from: JackRabiit on May 06, 2012, 04:07:19 AM

This. I would also recommend using CGEasy, don't have a link but I'm sure it's easy to find. Automatically sets up settings based on your input (your GPU, desired workload, aggressiveness, etc.) and very useful for those of us less versed in editing batch files :)

Thanks! Very helpful!

this is what I ended up doing:
1. I Played with CGeasy a few times and moved to tweak a bit in the batch file it created. I got it to hash at ~1.9GH/s, not without crashes but at list now it's about once every two hours.
2. Restricting the mem clock to 150 was a huge Improvement!
3. Searching around I found CGwatcher and configured it to relaunch CGminer every time there is a sick or dead GPU and also when the hash rate is below 1.5GH/s. not ideal but I can be sure that the system is running when i am sleeping.

Some conclusions I have after playing with the rig for a few weeks.

1. The difference between using GUIminer (+trixx) and CGminer(+ monitor) is big. USE CGMINER!!!!
2. I'm not sure I will recommend XFX 7970 Black edition for mining but they where extremely cheaper and I can live with the crashes as long as the system stays alive.

Yaron.

Quote from: JackRabiit on May 06, 2012, 04:07:19 AM

Why Diablo Miner over CGMiner with a 7970?

If you havent already, try running MSI afterburner and see what it shows you for clock speeds. Sometimes the numbers reset them selves to lowest possible values for some reason. Depending on various issues from power loss, to crashing, this can happen. I've found if I have my settings right, it really just takes hitting the reset button in MSI Afterburner to get things hashing right.

I run Reaper BTW, and I get about 550 khash per 7950 I run.

Quote from: CumpsD on May 01, 2013, 03:39:41 PM

Quote from: JackRabiit on May 06, 2012, 04:07:19 AM

Why Diablo Miner over CGMiner with a 7970?

No specific reason, The Diablo mining Kernal is just optimized for 7xxx cards (from what i know due to the GCN structure), It comes built in with CGMiner, But there is also the standalone Diablominer

here is my cgminer.conf if somebody needs it or if someone has better ones:

Code:

{
"pools" : [
	{
		"url" : "http://stratum.btcguild.com:3333",
		"user" : "ymeiner_1",
		"pass" : "123"
	}
]
,
"intensity" : "14,14,14",
"vectors" : "1,1,1",
"worksize" : "256,256,256",
"kernel" : "diablo,diablo,diablo",
"lookup-gap" : "0,0,0",
"thread-concurrency" : "0,0,0",
"shaders" : "2048,2048,2048",
"gpu-engine" : "0-1075,0-1100,0-1100",
"gpu-fan" : "0-85,0-85,0-85",
"gpu-memclock" : "150,150,150",
"gpu-memdiff" : "0,0,0",
"gpu-powertune" : "0,0,0",
"gpu-vddc" : "0.000,0.000,0.000",
"temp-cutoff" : "95,95,95",
"temp-overheat" : "85,85,85",
"temp-target" : "75,75,75",
"api-port" : "4028",
"expiry" : "120",
"gpu-dyninterval" : "7",
"gpu-platform" : "0",
"gpu-threads" : "1",
"hotplug" : "5",
"log" : "5",
"no-pool-disable" : true,
"queue" : "1",
"scan-time" : "60",
"temp-hysteresis" : "3",
"shares" : "0",
"kernel-path" : "/usr/local/bin"
}

results

Code:

GPU 0:  66.0C 3522RPM | 645.4M/665.0Mh/s | A:3 R:0 HW:0 U: 3.33/m I:14
GPU 1:  68.0C 3513RPM | 660.4M/674.9Mh/s | A:3 R:0 HW:0 U: 3.33/m I:14
GPU 2:  64.0C 3544RPM | 660.4M/674.9Mh/s | A:5 R:0 HW:0 U: 5.55/m I:14

Quote from: nexus84 on May 07, 2013, 07:57:29 PM

Anyone using HD 7950 ?
I think it has a better hash/$ value.

Anyway, which motherboard can support 5 cards?
Does it matter if the PCI Express port is only x8 instead of x16 ?

Thanks

Hi

I recomend this https://bitcointalk.org/index.php?topic=97154.20 (https://bitcointalk.org/index.php?topic=97154.20)

No problems so far and it supports 6 cards 8)

Quote from: ymeiner on May 02, 2013, 04:19:20 PM

Code:

GPU 0:  66.0C 3522RPM | 645.4M/665.0Mh/s | A:3 R:0 HW:0 U: 3.33/m I:14
GPU 1:  68.0C 3513RPM | 660.4M/674.9Mh/s | A:3 R:0 HW:0 U: 3.33/m I:14
GPU 2:  64.0C 3544RPM | 660.4M/674.9Mh/s | A:5 R:0 HW:0 U: 5.55/m I:14

Whats the power usage of that setup ymeiner?

Quote from: msalf on April 22, 2012, 11:23:40 AM

my settings on ubuntu

--gpu-engine 1100 --gpu-memclock 1500 --auto-fan --temp-target 78 --shaders 2048 --lookup-gap 2 --thread-concurrency 16384 -I 14 -g 2 -w 256

I was getting at least 660 with a very mild overclock using cgminer (with diablo kernel) on a 7970 1Ghz. Mind you that card did go up in smoke after 3 weeks of use.
Make sure you've got the amd ocl app sdk installed properly. May be worth uninstalling all ati stuff and starting again.

Quote from: shaal on May 08, 2013, 10:37:08 AM

Quote from: ymeiner on May 02, 2013, 04:19:20 PM

Code:

GPU 0:  66.0C 3522RPM | 645.4M/665.0Mh/s | A:3 R:0 HW:0 U: 3.33/m I:14
GPU 1:  68.0C 3513RPM | 660.4M/674.9Mh/s | A:3 R:0 HW:0 U: 3.33/m I:14
GPU 2:  64.0C 3544RPM | 660.4M/674.9Mh/s | A:5 R:0 HW:0 U: 5.55/m I:14

Whats the power usage of that setup ymeiner?

I need to check that :). My office is in a shared space and I pay a monthly rental fee so power consumption was never an issue for me...

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Other => Beginners & Help => Topic started by: msalf on April 22, 2012, 11:23:40 AM