When I first upgraded my Mac Pro 5.1 (2010, one CPU) from High Sierra to Big Sur I managed to upgarde the bootrom succesfully (with a bunch of trying out, because then the Mac Pro won't shut down in Mojave installers bootrom update section) So I installed the BigSur 11.2.3 with barrykn micropatcher to NVME-PCIe card. I remember having boot problems and even having to install the os again because I got a stop sign.
The shutdown / startup problems were even more complicated because of I used some cheap USB3-pcie card that caused problems with Bluetooth and other hard drives unmounting and whole computer freezing. I found the macrumours tread with the supported cards and the finally get rid of that USB3 card. These startup/shutdown problems were also without the USB3 card installed and trying all SMC/NVRAM resets, changing the motherboard battery, and all devices unplugged.
I got the stop sign about two months ago again and installed the OCLP and then upgraded to 11.6. The startup takes always some time (30 sec -1 min) even though I have about 700/1200mb/s read-write speeds. One time I had to force shut down the Mac Pro because it won't shut down in 10-15 minutes (before, when still using the USB3 card and had those problems, I had been waiting about 1 hour and it won't shut down). Mac Pro leaves the little dimmed background photo screen and the dock has gone down as normally (if I remember right). So after that shut down, the startup bar goes very slow and jumped back to start and finally froze for many hours (running via OCLP). I shut it down again and I started up and I started well. Ever since that always when I start up the computer it opens the contacts app and a specific settings page. These 2 were opened when I force shut down the computer.
That opening these 2 apps is annoying and other start-up / shutdown problems are also annoying from time to time.
Has anyone had similar problems or know what would be the source of these problems?
In the past, I have had not so many problems when running High Sierra and earlier versions of macOS. I only remember that the language of my Swedish/Finnish apple keyboard always changes itself to English after startup - I have not had that problem since Sierra.
BTW when I changed the motherboard battery I took it from another machine and tested that it had some power but it has been in that another computer for five years (mostly unused). So would that be the source of all that problems?
The shutdown / startup problems were even more complicated because of I used some cheap USB3-pcie card that caused problems with Bluetooth and other hard drives unmounting and whole computer freezing. I found the macrumours tread with the supported cards and the finally get rid of that USB3 card. These startup/shutdown problems were also without the USB3 card installed and trying all SMC/NVRAM resets, changing the motherboard battery, and all devices unplugged.
I got the stop sign about two months ago again and installed the OCLP and then upgraded to 11.6. The startup takes always some time (30 sec -1 min) even though I have about 700/1200mb/s read-write speeds. One time I had to force shut down the Mac Pro because it won't shut down in 10-15 minutes (before, when still using the USB3 card and had those problems, I had been waiting about 1 hour and it won't shut down). Mac Pro leaves the little dimmed background photo screen and the dock has gone down as normally (if I remember right). So after that shut down, the startup bar goes very slow and jumped back to start and finally froze for many hours (running via OCLP). I shut it down again and I started up and I started well. Ever since that always when I start up the computer it opens the contacts app and a specific settings page. These 2 were opened when I force shut down the computer.
That opening these 2 apps is annoying and other start-up / shutdown problems are also annoying from time to time.
Has anyone had similar problems or know what would be the source of these problems?
In the past, I have had not so many problems when running High Sierra and earlier versions of macOS. I only remember that the language of my Swedish/Finnish apple keyboard always changes itself to English after startup - I have not had that problem since Sierra.
BTW when I changed the motherboard battery I took it from another machine and tested that it had some power but it has been in that another computer for five years (mostly unused). So would that be the source of all that problems?
