Remember remember the 5th of November (OP)
Legendary
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Activity: 1862
Merit: 1011
Reverse engineer from time to time
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February 27, 2014, 10:15:37 PM |
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I have Windows 7 x64, and a 5850 and 5870. The 5870 is the PRIMARY card on which I game and the one that has the problem, the 5850 is the secondary card which usually mines and has 0 problems, knock on wood..
The problem with my 5870 is that sometimes when I enable the GPU on cgminer 3.7.2, it makes moving windows, scrolling extremely laggy, but at the same time I see the card mining with at most 16-30kh/s. This is at intensity 12. When the problem goes away by itself, I re-enable the GPU and it works just fine, reaching 310kh/s at same intensity but NO LAG.
One thing I notice is, the GPU VRAM usage does not go up when the problem is there, when it's gone and I try to mine again with the 5870, it's VRAM usage goes up. So I think what happens is, the GPU's memory is not available for mining at times. I have the latest AMD drivers and no OC.
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