new GPU installation, black screen?

Praedos

Honorable
Jun 2, 2013
171
0
10,690
Hi,

I had a pair of 780s running SLI a couple months ago and I sold them and haven't used my PC since now, where I've upgraded to a 1080.

With the 1080 installed, and hooking the HDMI cable to the mobo port, it launches to a black screen.

With the 1080 not installed, and hooking the HDMI cable to the mobo port, it launches normally and works fine.

Any recommendations would be fantastic, thank you so much in advance!

 

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