i did the same things was wrote in this link : tomsguide.com/answers/id-2885552/asus-n551zu-dedicated-video-card-working.html

[behnood]

i unistalled graphyics cards driverd for both r7 and r9. then i runned amd autodetect but it says this : "We were unable to find a driver for your system. No supported AMD hardware was detected."
and i should say that before i unistalled the drivers i could detect the r7 one.
please help me

 

[sid_90]

Do you want to install the AMD driver best suited for your GPU? If yes, and AMD auto-detect cannot identify your hardware. Then there might some problem with your GPU. Can you take it out and plug back into the PCI slot? See if it works?

 

[behnood]

Do you want to install the AMD driver best suited for your GPU? If yes, and AMD auto-detect cannot identify your hardware. Then there might some problem with your GPU. Can you take it out and plug back into the PCI slot? See if it works?

hi
the amd auto detect was working before i uninstall the drivers. are you sure i should take it out?
and how can i find the best driver?

 

[sid_90]

I would suggest to manually download the drivers from the AMD site. But for that yes, you need to know what exact model you are using!.... At times, due to loose or faulty connections in the PCI slot, the Auto-Detect software might just not work.