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Title: Used 6990 under performing by 50% Post by: stick_theman on July 29, 2011, 10:34:13 AM I just purchased a pair of 6990 (2x) video cards from the same owner on Ebay and installed them to a new rig. By comparing the total number of shares submitted, these two "used" 6990s submitted at 50% less shares of what the two new 6990s.
Both rigs have the same setting... I'm just wondering what is the deal... I didn't screw in the video cards properly or what? Or did previous owner properly fked up both cards? Title: Re: Used 6990 under performing by 50% Post by: Olly_K on July 29, 2011, 10:47:22 AM I take it you're running 2 instances on both cards ?
they're dual gpu so you'll need 1 instance for each gpu Title: Re: Used 6990 under performing by 50% Post by: stick_theman on July 29, 2011, 10:49:26 AM Yep, one instance for each gpu. Just want to make sure that I screwed the card in properly... since it's running so it looks like a hardware default problem.
Title: Re: Used 6990 under performing by 50% Post by: NetTecture on July 29, 2011, 11:09:10 AM Is that a card or a GPU problem? As in - are both GPU slower or just one? DId you properly tune them`?
Title: Re: Used 6990 under performing by 50% Post by: neo1999 on July 29, 2011, 07:42:21 PM More info plz! Temperatures of each core, clock and mem settings, what miners and overclocking tools, if any you are using would be helpful. If you can get a screenshot of the miners running, with GPU-Z showing that would be helpful.
Title: Re: Used 6990 under performing by 50% Post by: Jazkal on August 01, 2011, 03:32:33 PM Are you running both 6990 in one box?
If yes, you have four miners going? What are their settings? Title: Re: Used 6990 under performing by 50% Post by: Mousepotato on August 01, 2011, 05:12:49 PM What kind of PSU do you have?
Title: Re: Used 6990 under performing by 50% Post by: Jazkal on August 03, 2011, 05:14:33 PM I just purchased a pair of 6990 (2x) video cards from the same owner on Ebay and installed them to a new rig. By comparing the total number of shares submitted, these two "used" 6990s submitted at 50% less shares of what the two new 6990s. Did you figure this out?Both rigs have the same setting... I'm just wondering what is the deal... I didn't screw in the video cards properly or what? Or did previous owner properly fked up both cards? |