antz123 (OP)
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May 21, 2011, 01:57:31 AM |
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Hey all, just finished setting up a dedicated rig, but having a few problems... For some reason when using poclbm I'm getting this Verification failed, check hardware message on one of my cards. This only happens if I run both of my cards at once. When using diabloMiner, it is happy to run both miners on both cards but one of them ends up mining at a rate of about 5mhash What do you think could be causing the problem? Specs: AMD Sempron 140 2 x 6950 Windows XP 32 bit running catalyst 11.5 (crossfire enabled) Thanks in advance!
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benjamindees
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May 21, 2011, 02:04:12 AM |
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Power supply?
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Civil Liberty Through Complex Mathematics
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antz123 (OP)
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May 21, 2011, 02:07:55 AM |
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600W OCZ psu, more than enough for the system. I ran furmark for a while too... it didn't have any problems and ran both cards fine.
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Littleshop
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May 21, 2011, 04:02:45 AM |
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600W OCZ psu, more than enough for the system. I ran furmark for a while too... it didn't have any problems and ran both cards fine.
Seems a little close to me. I would think you would want 700w for two video cards.
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willaien
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May 21, 2011, 04:24:32 AM |
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running catalyst 11.5 (crossfire enabled) Disable crossfire and try again.
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benjamindees
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May 21, 2011, 05:09:53 AM |
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I would open up the PS and check for bad caps. Only if you're comfortable with that sort of thing, of course.
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Civil Liberty Through Complex Mathematics
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Basiley
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May 21, 2011, 12:38:47 PM |
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600W OCZ psu, more than enough for the system. I ran furmark for a while too... it didn't have any problems and ran both cards fine.
what 12V caps had that "600W" PSU ? in Amps.
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picollo7
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May 23, 2011, 05:53:06 PM |
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I am having this same problem too. It's not the PSU.
4850 750 W PSU win7 32 bit using 2.1
works anywhere from 5 - 30 minutes and then says Verification failed check hardware.
Tried with poclbm from 4/28 and 3/25.
the -v flag does not help.
Very frustrating and I know many other are experiencing this. One dude had a hack to restart poclbm automatically every 5 minutes. Sounds like a terrible plan to me.
Please help. Thanks!
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Isepick
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May 23, 2011, 06:16:23 PM |
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I had this problem in a single card rig powered by an Atom board. I slowed down my overclock on the 5850...problem went away. I think the Atom might have been a bit overtaxed. Every system is different, so YMMV.
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Kluge
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May 23, 2011, 06:24:54 PM |
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I slowed down my overclock on the 5850...problem went away. This solved the problem in one of my cards having that issue as well.
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sniper_sniperson
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May 23, 2011, 07:53:45 PM Last edit: May 23, 2011, 08:40:24 PM by sniper_sniperson |
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I got the same problem yesterday so reading posts here minds me that one of the cards has bad bios/bad gpu. This happened on my test cross rig - 5870 + 5850, well after 30 mins the 5870 throttles down and goes to 725Mhz from 870 under linux, nevertheless that the dedicated room has average 18-20'C temp in 48h interval. Under Windows disabling crossfire in the CCC doesn't help, only the second card disappears from GUIMiner's device list. Sapphires are popular with their bad bioses, have 3 5970OC editions and all of them give BSODs unless I change it with ASUS or Gigabyte firms ...
Specs of the rig: Windows XP 32bit AsRock N7AD-SLI (sli-singlecard bridge) E2180 downclocked to 1.6GHz Gigabyte 5870OC - all leds are in green state Sapphire 5850 Xtreme 1000W Cooler Master for cards and 400W Fortron Saga for the other components
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picollo7
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May 26, 2011, 05:05:39 PM |
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Ok, I feel kind of dumb. With the 4850, I just updated the drivers (including latest SDK) to the latest version, and the problem went away, and I got even better performance. So, update your drivers if you get this.
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