Lost Boot-up Screen on Mac Pro 5,1

spetznatz

macrumors regular
Original poster
Jan 5, 2006
181
12
When starting, I get no boot screen... it just stays black until the desktop appears, except for a small progress bar in the bottom left corner (see pic). When I try and boot from the Recovery partition or Install USB, I get nothing... the screen stays black. Card is an nVidia GT120 (Mac edition).

Now I did try a flashed card in here yesterday, to check 4K support. It gave me the boot screen, but this problem occurred when I replaced it with the GT120. Could this have messed anything up?
BootScreen - 1.jpg
 

Synchro3

macrumors 68000
Jan 12, 2014
1,978
833
This is the boot screen since OS X Yosemite. You see just a quarter of the screen. Normally the progress bar is in the middle of the screen.
 
Comment

spetznatz

macrumors regular
Original poster
Jan 5, 2006
181
12
So, Synchro 3... the default behaviour in Yosemite when holding down cmd-R or option on startup is to show a black screen and hide the boot loader / recovery partition? Who knew?

Thanks, netkas, I'll give it a go...
 
Comment

spetznatz

macrumors regular
Original poster
Jan 5, 2006
181
12
No joy... re-set PRAM three times and the SMC controller... will try another video card.

Also, I'm not getting a start-up chime anymore...

EDIT: It was the monitor... I got the boot screen on another monitor, so just did a factory reset on the Dell, and all is fine now... except no start-up chime...
 
Last edited:
Comment

spetznatz

macrumors regular
Original poster
Jan 5, 2006
181
12
... Because I heard the double chime for the PRAM reset but got no chimes on subsequent restarts... Sudo nvram -d SystemAudioVolume restored the boot chime.
 
Comment
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.