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Author Topic: help with failing driver 6950unlock and new card 6870x2 x 2 (4 cores)  (Read 763 times)
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July 29, 2011, 11:35:22 AM


I have some questions, some for one computer and some for other.

I have a computer with a 6950 with unlocked shaders and clocks unlocked also, core 2 quad q6600, 2x2gb ddr2 800. I use Windows 7 64 bits with ATI 11.7 (now, before 11.6) and msi afterburner 2.1.0. I use guiminer alone or guiminer with phoenix 1.5 and I am suffering an error when mining.

I move the clocks to down for the memory and the core and voltage a little up but it appears usually with all clocks.

When I start mining I do between 380-410 hashes but the driver stops and windows recovers from an error (usually when I return to the computer and I move the mouse to recover from a standby monitor, others only moving the mouse the computer freezes). The highest temperature is between 70ºC and 75ºC

I don't know what happens with that. any suggestion? For example if I don't touch a thing and leave the computer alone with a little luck the card is mining during hours, others I put mining and it freezes at the moment or when I move the mouse some minutes before.

For the other computer we have an athlon x2 with 2gb ddr3 and 2 new club3d 6870x2 in linux ubuntu. We have a proxy behind the internet with password and I configured the X linux to use the proxy but in the terminal I had to use proxychains to run the mining process to bypass the proxy.

We used the tutorial in the web to configure ubuntu with the 11.6 ati drivers, sdk 2.4, opencl 0.92, ATIOverdriveCtrl and finally I downloaded poclbm and phoenix 1.5.  Also the maximum bios settings (out of them the cards recover the default settings) are 940 cores and 840 memory.

I started using poclbm with 4 workers in but some cores run 280 hashes and others run between 150 and 200 but all of them are going up and down. Then I got from 850 to 1150 hash but I want to reach 1100-1200 constantly if possible.

Does phoenix 1.5 work better? I had some connection problems and I have to try it but I want to ask it now. Is a problem of the proxy?

Also, is easy to modify the bios to have lower memory clocks? And if it is normal in a 2 gpus card that 1 gpu runs faster than the other because it seems to happen in both cards 6870x2

thanks in advance.
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April 05, 2013, 10:03:54 PM

Did you ever get the 6870x2 's working?

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