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Title: AMD 7850 replacement, 1/6th the mhash Post by: solitude on February 11, 2013, 09:41:48 PM I had my Sapphire 7850 2GB card RMA'd and they sent me the exact same model card.
Before I would get 270 Mhash on slush's pool. Now I'm getting 44 Mhash. Any idea why this is? Do I need to uninstall the drivers and reinstall? Even though it's the same model (but not the exact same card of course) ? Title: Re: AMD 7850 replacement, 1/6th the mhash Post by: crashoveride54902 on February 11, 2013, 10:33:37 PM I had my Sapphire 7850 2GB card RMA'd and they sent me the exact same model card. Before I would get 270 Mhash on slush's pool. Now I'm getting 44 Mhash. Any idea why this is? Do I need to uninstall the drivers and reinstall? Even though it's the same model (but not the exact same card of course) ? ya i'd try that...if not then maybe you got a dud card back...those mh/s for a gpu is sad..are you using same miner? same everything? it should be doing what the old one was doing... Title: Re: AMD 7850 replacement, 1/6th the mhash Post by: purelithium on February 11, 2013, 11:33:23 PM Use the hardware subforum. You'll get more views there.
Title: Re: AMD 7850 replacement, 1/6th the mhash Post by: crazyates on February 12, 2013, 02:06:14 AM Ya 44Mh/s means somethings wrong. I would do as you suggested and re-install the drivers. Or just go ahead and update to the newest 13.1 drivers. What mining software are you using?
And rather than moving to the mining subforum, there's a mining support subforum that's for stuff just like this. Title: Re: AMD 7850 replacement, 1/6th the mhash Post by: mokahless on February 17, 2013, 09:21:20 PM Use GPU-z and check your clockspeeds and temperatures while mining, as well as your usage. Second tab.
Title: Re: AMD 7850 replacement, 1/6th the mhash Post by: kuusj98 on February 20, 2013, 08:30:01 PM Thats indeed strange, I have a Asus HD7850 @1300 mhz core, and it gets around 350 mh/s...
Try it with a game like Battlefield 3, it should run 50-60fps on stock clocks ultra 1080p with the lastest beta drivers. (My OC gets me 70-80fps). If that is 30 or lower, its broken.. Title: Re: AMD 7850 replacement, 1/6th the mhash Post by: Aseras on February 22, 2013, 07:03:03 PM dich 12.3 and go back to 12.1.
Title: Re: AMD 7850 replacement, 1/6th the mhash Post by: Gator-hex on March 14, 2013, 01:11:44 AM try using the Sapphire drivers and not the Ati ones.
Mine ran at half speed until I did that! ??? |