I just updated my Mac Pro 2013 CPU, the swap went fine and no screws left when I was done 
Now, the Mac chimes as it should and I can see the white Apple logo and the progress bar moving along nicely, but when it's time for the computer to show the login screen the monitor looses the video signal from the computer. I've tried with two monitors and the result is the same.
Apple Hardware Test shows "No issues found.".
Trying to boot into Safe Mode gives me the same result, meaning the Apple logo and the progress bar shows but when I'm supposed to be entering the OS the monitor looses the video signal. Same if I try to enter Recovery Mode.
EDIT: Solved, loose connector! Couldn't find a way to delete the post!
Now, the Mac chimes as it should and I can see the white Apple logo and the progress bar moving along nicely, but when it's time for the computer to show the login screen the monitor looses the video signal from the computer. I've tried with two monitors and the result is the same.
Apple Hardware Test shows "No issues found.".
Trying to boot into Safe Mode gives me the same result, meaning the Apple logo and the progress bar shows but when I'm supposed to be entering the OS the monitor looses the video signal. Same if I try to enter Recovery Mode.
EDIT: Solved, loose connector! Couldn't find a way to delete the post!
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