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HD5970 not using one of the GPUs

Question asked by profor on Nov 21, 2015
Latest reply on Nov 27, 2015 by tommccade

Both AMD System Monitor and MSI Afterburner show, that one of the GPUs is not being used at all, even when 1st GPU is at 100%. This happens on Catalyst 15.7.1 and the newest beta 15.11. I tested 3 games: Fallout 4, Guild Wars 2 and League of Legends. In none of those was the second GPU used. After uninstalling new drivers and changing them to the oldest I could find (Catalyst 12.1) second GPU was finally being used, but only in LoL where both 1st and 2nd GPUs had the same numbers. In GW2 second GPU rarely used 5% of its power while GPU1 was at 90-100%, same in Fallout 4, please help.

My specs are:

WIndows 7 Ultimate x64

Intel Core i7 CPU 950 @ 3.07 GHz

6 GB RAM

If any further information about my system is needed I will provide it as soon as possible.

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