macpro3,1 maOS 10.15.4

There is a good chance, I won't say for sure, that if I unplug the power cable, then reconnect and boot, my chances of booting back to normal is 100% or close to 100%.  So there is some state stored in the memory that tells the OS to reboot to Recovery inadvertently or what I think it is inadvertently.  By unplugging the power cable I sort of clear that so the system starts anew.

I try to make sense of the scenario the best I can by making up stories the best I could.

The things that could go wrong:-
This is a 2008 macpro3,1 so it's not even supposed to be running 10.15.4 which was make possible by running dosdude1's patch since Mojave
The GPU is not supposed to be the PC version like I have installed.  Without the EFI from Apple, I don't see the boot up screens except the very last stage where I was prompted to enter my login and password.
Wired the one internal SATA to a Blu-ray drive and re-connected the EIDE superdrive, though presently disconnected to narrow down the problems for troubleshooting purpose.

To recap:
The system has been very stable starting Mojave.
Then comes Catalina 10.15 which was still stable for me.
Then I put in the Blue Ray and moved things around ... my SSD used to be using the internal SATA and put in the empty drive bay.
When I tried to connect the SSD and the Blue Ray drive using the SATA ports, it gives my problem, the system won't boot up.
In the end, I was able to put the SSD to drive bay 1 using some caddie, put all the HDDs onto bay 2 and 3.  The BR and Superdrive into the optical drive bay.
By and large it's working except after a while the superdrive would disappear.  But I can live with that.
Then somehow somewhere along the line, it develops this boot and sleep and wake up problem.  I decided to upgrade it to 10.15.4 to see if that removes the problem, alas it didn't.
Overnight, the system rebooted itself into recovery, it actually prompted the mouse setup and language setup before getting into recovery.  There were instances when the wake up screen appeared but after entering the login and password, the beach ball appeared and spins it went then it just froze.  Maybe something to do with the AFPS script boot or some kernel text with the patch ...

When the system is up and running it pretty solid.  Just don't let it go sleep or shut down.  Chances are it may boot to recovery.