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Bitcoin => Mining support => Topic started by: BTC guy on June 20, 2012, 05:55:15 PM



Title: four 6990 only running four cores
Post by: BTC guy on June 20, 2012, 05:55:15 PM
im using windows 7. all 4 cards are detected in device manager and afterburner. only 4 cores are mining with cgminer. when i run 1 card i still only get 1 core. i tried CCC 12.3 and 11.12. any ideas what the problem is?


Title: Re: four 6990 only running four cores
Post by: mjsbuddha on June 20, 2012, 05:59:56 PM
windows 7 only supports 4 gpus. 6990's have 2 cores each for a total of 8 gpus. no way to get it working on windows 7. try linux


Title: Re: four 6990 only running four cores
Post by: BTC guy on June 20, 2012, 06:01:08 PM
im running four 5970 with all 8 GPU mining on windows.


Title: Re: four 6990 only running four cores
Post by: TheHarbinger on June 20, 2012, 11:58:57 PM
What he meant to say was Windows 32bit only supports 4 GPU cores, 64bit will support 8.


Title: Re: four 6990 only running four cores
Post by: tnkflx on June 21, 2012, 09:10:01 AM
im using windows 7. all 4 cards are detected in device manager and afterburner. only 4 cores are mining with cgminer. when i run 1 card i still only get 1 core. i tried CCC 12.3 and 11.12. any ideas what the problem is?

Are you running 32-bit or 64-bit?


Title: Re: four 6990 only running four cores
Post by: BTC guy on June 21, 2012, 02:55:55 PM
64 bit. i finally got all 8 cores to run.