Another machine (GTX950m on an integrated screen) boots as well.
From my limited understanding of the error message in the screenshot - perhaps the problem is that the screen is connected to displayport (the GT 640 uses HDMI).
The failing system has a 4k screen connected to displayport.
Another machine (GTX950m on an integrated screen) boots as well.
From my limited understanding of the error message in the screenshot - perhaps the problem is that the screen is connected to displayport (the GT 640 uses HDMI).
The failing system has a 4k screen connected to displayport.