ETH on 2 GB HD 6970 Windows 7 possible?

[1337leet]

Hey guys,

I have been mining DCR for some time now. But It's just not worth it anymore.

I want to mine ETH now. I tried to do so some time ago - but didn't get it running.

I have always had problems with the DAG. I read forums for more than a week and didn't get it running.


Now my question - does anyone knoe how I could get HD6970 cards running ETH on a Windows 7 PC?

What driver do I need? What arguments do I need to add?

And please only people who really know that it is working. I won't change drivers several times just in case it could be possible that it might work...

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[Genoil]

I built a version of my fork a while ago that supported DAG chunking. I never released it because the performance of HD7000+ was affected by chunking and the allocation issues could be solved much easier.

It may solve your problem. Let me see if i can dig it up for you.

try if this works: https://github.com/Genoil/cpp-ethereum/blob/master/releases/ethminer-0.9.41-genoil-1.0.7-chunked.zip

Note: this is using 5* 256MB + 1 rest chunk up to a size of 256MB. So it won't work with DAG bigger than 1.5GB. If this works, I can make 2 * 1024 or 4 * 512 versions that will likely be faster and work longer.

[greaterninja]

Genoil's ethminer does pretty good job supporting 2gb cards.  On the otherhand, the other ethminer works if you type the following command.

If you have a 2GB card it should be possible after typing the following in command line or run prompt:

For windows type "setx GPU_SINGLE_ALLOC_PERCENT 100"


For Linux type "export GPU_SINGLE_ALLOC_PERCENT=100"    
*note ethminer might have to be ran from the same terminal you typed this command.

[Yanakitu Tenatako]

Use 14.4 drivers for 6970 2gb cards. Will work. Tested.

[1337leet]

I tzry qtminer with catalyst 14.4 and setx GPU_SINGLE_ALLOC_PERCENT=100 now.

If this won't work I try the Genoil miner.

[1337leet]

I built a version of my fork a while ago that supported DAG chunking. I never released it because the performance of HD7000+ was affected by chunking and the allocation issues could be solved much easier.

It may solve your problem. Let me see if i can dig it up for you.

try if this works: https://github.com/Genoil/cpp-ethereum/blob/master/releases/ethminer-0.9.41-genoil-1.0.7-chunked.zip

Note: this is using 5* 256MB + 1 rest chunk up to a size of 256MB. So it won't work with DAG bigger than 1.5GB. If this works, I can make 2 * 1024 or 4 * 512 versions that will likely be faster and work longer.

I have 2 HD 6970 cards and 1 HD 6990 - I'll try it anyways - but I'm not familiar with github... can't find a downloadable file.

[Genoil]

I built a version of my fork a while ago that supported DAG chunking. I never released it because the performance of HD7000+ was affected by chunking and the allocation issues could be solved much easier.

It may solve your problem. Let me see if i can dig it up for you.

try if this works: https://github.com/Genoil/cpp-ethereum/blob/master/releases/ethminer-0.9.41-genoil-1.0.7-chunked.zip

Note: this is using 5* 256MB + 1 rest chunk up to a size of 256MB. So it won't work with DAG bigger than 1.5GB. If this works, I can make 2 * 1024 or 4 * 512 versions that will likely be faster and work longer.

I have 2 HD 6970 cards and 1 HD 6990 - I'll try it anyways - but I'm not familiar with github... can't find a downloadable file.

Click the RAW button.

[1337leet]

Thank you.

But I got problems installing Catalyst 14.4 ... it always tells me "failure: Installation packages failed"
I started it as an admin... and I deinstalled the previous drivers with DDU.


Will the Genoil miner also run with catalyst 15.7.1?

And what do I need to run it? Do I need the eth-proxy?

[DDSZ]

So... I got R9 290 and HD6950 in one system. I've installed 15.7.1 (which is the latest non-beta driver for HD6000 series) and it seems like OpenCL support for HD6950 is missing.
Can I fix it somehow, maybe with an older version of CCC? What version should I try?

[1337leet]

So... I got R9 290 and HD6950 in one system. I've installed 15.7.1 (which is the latest non-beta driver for HD6000 series) and it seems like OpenCL support for HD6950 is missing.
Can I fix it somehow, maybe with an older version of CCC? What version should I try?

I don't think that you can run those cards together in one system. The drivers of the 290 do not support the 6950 and the drivers of the 6950 do not support the 290.
It's not about a missing openCl - I had 15.7.1 before and it worked fine for openCl mining.

[adaseb]

You need older ATI Catalyst drivers 14.4 for it to work. Also your virtual memory needs to be like 16GB.

It will work but the 6970 will only get like 8MH/s and its very bad on efficiency.

[1337leet]

You need older ATI Catalyst drivers 14.4 for it to work. Also your virtual memory needs to be like 16GB.

It will work but the 6970 will only get like 8MH/s and its very bad on efficiency.

I just installed 14.4 and now try qtminer with max alloc 100%.

I will overclock my cards. I think I can get like 9-10 MH. And I have got 6 Chips so 6 x 10. With a bit luck that's 60 MH which isn't that bad I think.

[DDSZ]

So... I got R9 290 and HD6950 in one system. I've installed 15.7.1 (which is the latest non-beta driver for HD6000 series) and it seems like OpenCL support for HD6950 is missing.
Can I fix it somehow, maybe with an older version of CCC? What version should I try?

I don't think that you can run those cards together in one system. The drivers of the 290 do not support the 6950 and the drivers of the 6950 do not support the 290.
It's not about a missing openCl - I had 15.7.1 before and it worked fine for openCl mining.

Yeah, I thought about that.
It even shows both cards in Crimson's "Radeon settings", but still no OpenCL for 6950...

[1337leet]

@Genoil your miner doesn't work I think.

I just started it but it doe not start to create the DAG file.

[1337leet]

Use 14.4 drivers for 6970 2gb cards. Will work. Tested.

No it doesn't.
I started qtminer and it told me that it can't find a card with enough memory and closes the miner imediately.

[adaseb]

Here is my config


setx GPU_MAX_ALLOC_PERCENT 95
setx GPU_USE_SYNC_OBJECTS 1
ethminer --opencl-platform 1 --farm-recheck 200 --cl-local-work 64 --cl-global-work 12288 -t 5 -G -F http://127.0.0.1:8080/6990

[Genoil]

oh that .cmd file doesn't belong there. Well if you remove the -M 12345 part you can see if it works and mine some ETH for me 

[1337leet]

oh that .cmd file doesn't belong there. Well if you remove the -M 12345 part you can see if it works and mine some ETH for me  

It works without the -M 12345. But I still have got 2 questions.

It only shows 12-16 MH for 6 6970 chips... that's like 2,5 MH per card which should be possible to pull 8-10 MH each...

My pool doesn't show any shares... do I need to edit anything else?
ethminer.exe --cl-local-work 128 --cl-global-work 8192 -S eu1.ethpool.org:3333 -FS eu1.ethpool.org:3333 --farm-retries 0 -O 0xD5B1C0b4a418F512D37645F57c0Cba6D44bAdaA0.home -G --opencl-platform 1 -E bench -R C:\Ethereum\DAG --farm-recheck 2000


This is shit.. it's fucking slow and doesn't work right...

[Unacceptable]

oh that .cmd file doesn't belong there. Well if you remove the -M 12345 part you can see if it works and mine some ETH for me  

It works without the -M 12345. But I still have got 2 questions.

It only shows 12-16 MH for 6 6970 chips... that's like 2,5 MH per card which should be possible to pull 8-10 MH each...

My pool doesn't show any shares... do I need to edit anything else?
ethminer.exe --cl-local-work 128 --cl-global-work 8192 -S eu1.ethpool.org:3333 -FS eu1.ethpool.org:3333 --farm-retries 0 -O 0xD5B1C0b4a418F512D37645F57c0Cba6D44bAdaA0.home -G --opencl-platform 1 -E bench -R C:\Ethereum\DAG --farm-recheck 2000


This is shit.. it's fucking slow and doesn't work right...

You got the pool listed twice,never seen that in a bat file,am I misunderstanding why??

Also I thought the 6900 series cards weren't working for eth mining........

[1337leet]

oh that .cmd file doesn't belong there. Well if you remove the -M 12345 part you can see if it works and mine some ETH for me  

It works without the -M 12345. But I still have got 2 questions.

It only shows 12-16 MH for 6 6970 chips... that's like 2,5 MH per card which should be possible to pull 8-10 MH each...

My pool doesn't show any shares... do I need to edit anything else?
ethminer.exe --cl-local-work 128 --cl-global-work 8192 -S eu1.ethpool.org:3333 -FS eu1.ethpool.org:3333 --farm-retries 0 -O 0xD5B1C0b4a418F512D37645F57c0Cba6D44bAdaA0.home -G --opencl-platform 1 -E bench -R C:\Ethereum\DAG --farm-recheck 2000


This is shit.. it's fucking slow and doesn't work right...

You got the pool listed twice,never seen that in a bat file,am I misunderstanding why??

Also I thought the 6900 series cards weren't working for eth mining........

This is a special unofficial forked version by Genoil which splits the DAG in several parts.

The start.bat was already provided... I did only change the wallet adress and my pool url. You need to ask Genoil if this is right or why the pool is lited twice.

I don't know why the 6900 series shouldn't work for ETH. They have 2 GB of ram and the DAG is like 1,45 GB...

But yes - in fact it doesn't really work.

It shows some mining but nothing that reaches the pool so far.

But there must be some more problems... I did list devices and got this:




BTW: I deleted the second poolurl and now it works. Thanks to Unacceptable


This is the starting screen of the miner - I don't know how it should look like - but the warnings at the end looking strange..



And if you ask me it's only using one card and not all 6.

 6 cards - right so far... but only 2 are cayman the other 4 should be antilles.