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Title: 6990 not working Post by: Jarvis2.4 on June 10, 2014, 07:49:53 AM Hi miners,
I am making my 2nd Rig. The problem is I connected my 6850 on the 16X slot and I installed the latest catalyst. When I connect 5770 it detects it mines also. But when I connect my 6990 only Microsoft based driver activate in Device Manager. Sometimes the screen freezes during booting windows. I was using 1x to 16X powered riser for both 5770 and 6990. Do I need dummy plug? The fan of 6990 Toggles and slows down and continue every 2 - 3 secs. Any Idea how to fix that. Need Help! Title: Re: 6990 not working Post by: Equate on June 11, 2014, 01:19:50 PM Give some more details :-
Driver version ? Mining software ? 6990 fans seem to be toggling due to over-use . You can oil the fans , it seems to help . Title: Re: 6990 not working Post by: Jarvis2.4 on June 12, 2014, 03:12:07 PM Give some more details :- Win8 Amd 14.2 catalystDriver version ? Mining software ? 6990 fans seem to be toggling due to over-use . You can oil the fans , it seems to help . The device is not detected properly in device manager. I am having TX 750 PSU. Fans are toggling to 100% then 10% for 5 seconds and this continue. CGMIner not detecting 6990 but 6850 only. Thanks anyway Title: Re: 6990 not working Post by: Equate on June 12, 2014, 05:00:55 PM Can you try with old catalyst drivers , I have found 13.11 quite stable . If you have another rig , try to swap your cards and see if its gpu problem .
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