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Author Topic: Hardware error on 2nd GPU only, 2 different cards  (Read 1365 times)
AmpEater
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February 25, 2011, 06:31:01 AM
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I got everything working except one problem.  I keep getting "Verification failed, check hardware!" on the 2nd GPU of my (bought used) 5970.  I tried underclocking, even down to 560/1000 and it still does it very often. I swapped in a 2nd (bought used) 5970 and the same thing.  It works, it just shows a lower khash rate and lots of errors.  The whole time core 1 is happy not a single error on both cards.

What would cause this? Any ideas? I'm skeptical of used hardware, but the fact that both cards show the same behavior gives me hope its a config issue.

I'm running Ubuntu 10.10 with m0mchill poclbm. Motherboard is MSI-7599 AM3 spemron with 2 sticks of kingston 1gb pc1033 dd3 ram. Corsair 1200w gold psu. Motherboard is just sitting on workbench at this point until case gets here. I have DVI monitor plugged into lower dvi port of the card. Switching to top doesn't help.

Help! Thanks Smiley
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bitjet
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February 25, 2011, 01:45:26 PM
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What version of stream sdk are you running?
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February 25, 2011, 02:17:57 PM
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I got everything working except one problem.  I keep getting "Verification failed, check hardware!" on the 2nd GPU of my (bought used) 5970.  I tried underclocking, even down to 560/1000 and it still does it very often. I swapped in a 2nd (bought used) 5970 and the same thing.  It works, it just shows a lower khash rate and lots of errors.  The whole time core 1 is happy not a single error on both cards.

What would cause this? Any ideas? I'm skeptical of used hardware, but the fact that both cards show the same behavior gives me hope its a config issue.

I'm running Ubuntu 10.10 with m0mchill poclbm. Motherboard is MSI-7599 AM3 spemron with 2 sticks of kingston 1gb pc1033 dd3 ram. Corsair 1200w gold psu. Motherboard is just sitting on workbench at this point until case gets here. I have DVI monitor plugged into lower dvi port of the card. Switching to top doesn't help.

Help! Thanks Smiley


Sounds to me like you have cross-fire is enabled; if that's the case - you need to turn it off by typing:

Code:
$ aticonfig --crossfire=off --adapter=all

Or, like bitjet suggested, you are using a wrong ATI Stream SDK (like 2.2 or 2.3).

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February 25, 2011, 05:19:04 PM
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What version of stream sdk are you running?

I am running sdk 2.1.  Crossfire has been disabled.  Cores are definitely not overheating, avg at like 60c and 99% load.  Appreciating the suggestions!  

Edit - I got it working!  I think I either disabled crossfire wrong, or redoing the aticonfig commands fixed it. Thanks for the help guys!;
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