Hi please help me with this

Operating system: windows 7 64 bit

Graphic card issue: 2 graphic cards - 4 monitors

Not in crossfire

Was previously using 2 graphic cards (radeon HD 4650) (radeon HD 6790) was working fine never any problems

After 2 years of using them the HD 6790 stopped working it seems like the card is dead

So I bought a new one - this one is a Diamond radeon hd 7770   - I installed it

The issue is the hd 7770 and hd 4650 don't want to work together

They do work fine separately (only one is installed or the other) but when installed together one will work not the other one

I have tried and tried different catalyst driver no luck

Right now radeon HD 7770 is working fine for the Hd 4650 In device manager I get (Windows has stopped this device because it has reported problems. (Code 43)

I have tried for many hours to fix this still no luck

Can you help me with this thank you

You can't use a legacy and non legacy product together, they use different driver sets.

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Crosshair IV Formula, Phenom II x4 965 w/ Corsair H60, 8 GiB OCZ Platinum DDR3 1600, XFX HD 7970 Ghz, 512GB Vertex 4, 256GB Vector, 240GB Agility 3, Creative X-Fi Titanium w/ Creative Gigaworks S750, SeaSonic X750, HP ZR2440w, Win 7 Ultimate x64

sorry but I did manage to make it work finaly

so everthing is fine now

that was a tough one

great it works