Hello, i have some major issues with my 2008 Mac Pro 3,1.
I‘m struggeling for days but i can‘t get it to boot.
Issues:
These Issues occurred after i selected Bootcamp as Startup disc from High Sierra.
Before that everything was working absolutely fine.
Can somebody help me? I tried almost everything:
I can imagine somehow windows overtook my machine and installed a windows bootloader over my mac bootloader. But that sounds a bit crazy, is that even possible?
How can i restore my machine? I really need the Mac for business and private use.
Thanks for ever hint that you can give me ...
I‘m struggeling for days but i can‘t get it to boot.
Issues:
- doesn‘t boot macOS
- doesn‘t play the chime
- doesn‘t accept startup shortcuts (selecting boot device with option key or NVRAM reset, F12 to eject cd works though)
- only boots Windows 7
- doesn‘t boot rEFInd CD, USB-Stick
- doesn‘t boot fresh installed Catalina from another Mac
- shows white blinking cursor when Windows drive is removed
These Issues occurred after i selected Bootcamp as Startup disc from High Sierra.
Before that everything was working absolutely fine.
Can somebody help me? I tried almost everything:
- removed battery for 35mins to reset NVRAM/PRAM -> nothing changed
- Fresh Catalina Install from another Mac (not supported but should bring back chime and boot selector) -> nothing
- rEFInd CD, USB-Stick -> didn‘t boot from that and i can‘t select it manually
- pulled several drives to test side effects -> didn‘t help
I can imagine somehow windows overtook my machine and installed a windows bootloader over my mac bootloader. But that sounds a bit crazy, is that even possible?
How can i restore my machine? I really need the Mac for business and private use.
Thanks for ever hint that you can give me ...