Amd multi monitor setup fcked up

[patafix]

Hi guys, this is Lucas

So i just switched from my gtx 780 to a sapphire hd 7950 vapor-x and now my multi monitor setup doens't work anymore. So my setup was like this:

First monitor (main desktop) here: dvi                          2nd monitor here: hmdi                               3rd monitor: dvi -> hdmi adapter duplicated 1st monitor

 

Now just the monitor with the adapter works (no matter where i use it), one gets recognized but no picture (usually my 1st, if it isn't plugged in my 2nd monitor) and a third one won't get recognized.

 

I installed the amd catalyst control center (btw. i'm using windows 8.1).

 

So right now works my 3td monitor, my 2nd doenst get recognized and my 1st and main monitor gets recognized but nio image.

 

Please help.

 

(Btw. when i deinstall the nvidia drivers, my pc crashes, i can't boot and have to load a backup, i tried it 2 times)

[ExcitezR]

to run 3 monitors with a 7950/7970 you need to have one screen on Displayport thats what i have to do 

[SubTract]

With AMD Cards (Excluding the 260 & 290 cards) you can only use either 2 DVI  or DVI 1 and HDMI not all 3. Get a DP adapter if you don't DP monitor.

[patafix]

Update: I tried DP + HDMI + DVI amd DP + 2 x DVI

still only the one monitor hooked up to the dvi -> hdmi adapter works

 

I begin to think, if there are some problems with the old nvidia drivers

 

Any ideas, my last one would be a complete reinstall of windows.

[isteelsolz]

try running DDU

[patafix]

After ddu no screen gets an image (GPU and onboard graphics)

[SubTract]

Power off. Re-Seat your Graphics. Check in BIOS that its set to use PCI-E Graphics. Boot.