Why does my monitor go black after installing my new Radeon 460?

WyattFischer

Prominent
Mar 8, 2017
1
0
510
My computer will run fine when I plug the DVI into the motherboard and just use the onboard graphics card. But when I plug it into the new gpu my monitor says"Entering sleeping mode".

The blue light is on, on my new gpu indicating it's working correctly. But when I go to device manager it doesn't even show that I have the new gpu plugged in.
 

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