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M17x R4 7970m Windows 8.1 problem.. only IGPU works?!

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i need Help to get my 7970m work on Windows 8.1 it seems like only the IGPU is working, FN+F7 isnt working too :(.

Which driver should i use? Most drivers from the Dell site ends with the massage: Application Install: install package failure!

Thank you for your Help

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I have found my failure, the 7970m is dead :( . My old 6990m is working fine. Try to get a Nvidia 680m now!

Also You need heatsink, becase AMD and NVidia is different

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Yes old post, but in case others come searching to a resolution, did you try a third party driver called DDU?   It will wipe both the Intel and AMD and give you a fresh system to install the drivers.  

Now I only know of two paths to install but I am sure people here have many more.  Install the dell based drivers and then install intel from their website and then the current AMD, or a 3rd party (since don't know what the rules regarding naming 3rd party websites, I can say just it involves "cat" in the name, pm if it is allowed, I can show you where to go, but be aware that I don't think they are keeping the drivers up to date anymore as they ended with 15.11 beta).

If I get my system working again, I am going the first route as I think the 3rd party drivers caused my eventually failure of the OS (I am dreading the reinstall).

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