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Other / Beginners & Help / Re: Whitelist Requests (Want out of here?)

on: August 15, 2011, 06:21:52 PM

Hello - I've just started with mining bitcoins, and would like to be able to request help for some GPU issues in some of the other forums and maybe discuss the bitcoin subject in general. I'm not sure if I should have been automatically whitelisted (first login was about a day ago and I've had 5 posts for a few hours). thanks,

Other / Beginners & Help / Re: new 6990 - problems with poclbm on 2nd GPU - you get 1st pool payout if solved

on: August 15, 2011, 06:15:41 PM

OK, underclocking device 1 to the minimum possible (500) didn't make a difference, and downgrading catalyst and the SDK didn't work either (and knocked about 30MH/s off my mining), but, it seems someone else is having the same problem: https://bitcointalk.org/index.php?topic=21687.0 Looks like changing poclbm to phoenix might work? will investigate

Other / Beginners & Help / Re: new 6990 - problems with poclbm on 2nd GPU - you get 1st pool payout if solved

on: August 15, 2011, 09:02:05 AM

Thanks to all the responses! - It's appreciated. Quote from: broken on August 14, 2011, 08:42:58 PM Are you using the latest ATI drivers? I think you need at least AMD APP SDK 2.4, which supports Dual GPU Cards. I am using Ati driver 11-5 and AMD APP SDK 2.4 with my ASUS 6990 I've got Catalyst 11.7 and the SDK is 2.5 - I may try downgrading to 11.4/2.4 though if that works for you. Quote from: ohforf on August 14, 2011, 08:49:51 PM Could it be a Power supply Problem ? This High End Card needs a damm good Power supply to run stable at maximum Speed. A 6990 consumes up to 375 Watt... with Overclocking, its 450 Watt or more. I don't think this will be a problem - I've got 1200W available (one of these: http://www.silverstonetek.com/product.php?pid=284) - there's another 6990 coming in the post when Amazon have them back in stock so I've tried to make sure there's plenty of power available. I don't plan on overclocking (at least not until I've got a watercooling set-up), the only thing I've done so far is underclock the memory on both GPUs. Quote from: Xephan on August 14, 2011, 09:02:02 PM Quote from: LiSrt on August 14, 2011, 09:02:08 AM :8332 14/08/2011 09:52:11, 13b334a2, accepted :8332 14/08/2011 09:52:12, Verification failed, check hardware! This seems to imply that your GPU is producing erroneous results. Since the first set went through, it might be a stability issue. One way to check is to underclock your GPU as low as it can go, set your fan speed to high, let the temperature drop low and then start poclbm only on the problem GPU. If you can get it to work like this, it pretty much points to a GPU stability issue. Hmm, will try that now...

Other / Beginners & Help / Re: Introduce yourself :)

on: August 14, 2011, 03:01:23 PM

Just getting started mining, and hoping to make some use of this shiny-but-getting-dustier 6990.

Other / Beginners & Help / Re: How do I, Help needed...

on: August 14, 2011, 11:25:53 AM

Not sure about the first one, but if you're using http://mining.bitcoin.cz/, then everyone who connects to your account will need to have a username suffix and a password - enter their details at this page: http://mining.bitcoin.cz/accounts/profile/worker-edit/

Other / Beginners & Help / Re: -d in POCLBM doesnt wanna work

on: August 14, 2011, 09:09:15 AM

Yes, that command looks correct - it's a very low hash rate though, so you may want to let it run for a while. Try using the --verbose option as well, and look for any "accepted" in the output. Is the first device a GPU? If so, try using -d 0 instead of -d 1.

Other / Beginners & Help / new 6990 - problems with poclbm on 2nd GPU - you get 1st pool payout if solved

on: August 14, 2011, 09:02:08 AM

I'm new to bitcoin, and have just started mining with a new system, running Linux.

The problem is, I can't seem to use more than one GPU of the 6990 card I just bought - poclbm detects them as follows:

Code:

No device specified or device not found, use -d to specify one of the following

[0]     Cayman
[1]     Cayman
[2]     Intel(R) Core(TM) i7 CPU         970  @ 3.20GHz

when I try the first (or zeroth, if you prefer) device, everything works pretty much OK:

Code:

./poclbm.py --vectors --device=0 --verbose :@:8332
14/08/2011 09:34:31, Setting server ( @ :8332)    
/home/lisrt/lib/poclbm/BitcoinMiner.py:97: DeprecationWarning: 'enqueue_read_buffer' has been deprecated in version 2011.1. Please use enqueue_copy() instead.
  cl.enqueue_read_buffer(queue, output_buffer, output)
/home/lisrt/lib/poclbm/BitcoinMiner.py:143: DeprecationWarning: 'enqueue_write_buffer' has been deprecated in version 2011.1. Please use enqueue_copy() instead.
  cl.enqueue_write_buffer(queue, output_buffer, output)
:8332 14/08/2011 09:34:48, 9ab8eade, accepted
:8332 14/08/2011 09:35:30, b5dae8e1, accepted
:8332 14/08/2011 09:35:31, [378.608 MH/s (~0 MH/s)] [Rej: 0/2 (0.00%)]
:8332 14/08/2011 09:35:32, c63750c5, accepted
:8332 14/08/2011 09:35:46, c7b1566a, accepted
:8332 14/08/2011 09:35:51, 7c3c8bf9, accepted
:8332 14/08/2011 09:36:04, e02f1752, accepted
:8332 14/08/2011 09:36:09, d8e0e175, accepted
:8332 14/08/2011 09:36:13, 826fdfe5, accepted
:8332 14/08/2011 09:36:16, 110df020, accepted
:8332 14/08/2011 09:36:19, warning: job finished, miner is idle
:8332 14/08/2011 09:36:19, f436cb20, accepted
:8332 14/08/2011 09:36:31, [350.025 MH/s (~286 MH/s)] [Rej: 0/10 (0.00%)]

but when I try [1], it goes wrong:

Code:

./poclbm.py --vectors --device=1 --verbose :@:8332
14/08/2011 09:51:49, Setting server ( @ :8332)     
/home/lisrt/lib/poclbm/BitcoinMiner.py:97: DeprecationWarning: 'enqueue_read_buffer' has been deprecated in version 2011.1. Please use enqueue_copy() instead.
  cl.enqueue_read_buffer(queue, output_buffer, output)
/home/lisrt/lib/poclbm/BitcoinMiner.py:143: DeprecationWarning: 'enqueue_write_buffer' has been deprecated in version 2011.1. Please use enqueue_copy() instead.
  cl.enqueue_write_buffer(queue, output_buffer, output)
:8332 14/08/2011 09:52:11, 13b334a2, accepted
:8332 14/08/2011 09:52:12, Verification failed, check hardware!
:8332 14/08/2011 09:52:13, Verification failed, check hardware!
:8332 14/08/2011 09:52:13, Verification failed, check hardware!
:8332 14/08/2011 09:52:13, Verification failed, check hardware!
:8332 14/08/2011 09:52:13, Verification failed, check hardware!
:8332 14/08/2011 09:52:13, Verification failed, check hardware!
:8332 14/08/2011 09:52:13, Verification failed, check hardware!

I thought it might be a crossfire thing, so I tried disabling it - but every time I restart X, crossfire is re-enabled. Huh

(managed to disable it once, not quite sure how, but then poclbm couldn't see more than one GPU)

I know people can get much more with this card than the ~380MH/s I'm getting, so I'm pretty sure I should be able to use the other GPU, I just don't know where to go from here.

I'll send my first pool payout from mining on the 2nd GPU to anyone who gives the info necessary to get this all running OK.

Any ideas?

edit - title change

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