ill tell the story of my problem,first i bought a gpu name AMD Radeon 6450 for 35$ secondhand.I install the gpu in my mobo and it actually works i used it for 3 days..after that when I Start my computer the monitor wont display anything its all black but i hear sounds that it is on the desktop but nothing is display but all black.I try to search for my problem in the forums and in the facebook ..but nothing can solve my problem.I try to connect the VGA cable in my mobo and my monitor works!..I think that the problem is on my GPU..thats why i bought a new gpu AMD Radeon 6570 for 70$..but when i put the card in the mobo it is back to the problem..nothing is displayed on my monitor but sounds.So maybe here on the forum someone can help me.
I also try to change the mobo(but still the same brand) i try to put the 2 GPU=nothing works
I also try to change the mobo(but still the same brand) i try to put the 2 GPU=nothing works
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