Driver Verifier DMA Violation / Driver Power State Failure on Dell Precision 7730

For several months now I have been unable to cope with the daily reboot of my laptop. BlueScreen Viewer alternately shows "Driver Verifier DMA Violation" or "Driver Power State Failure"

I'm using also Dell Dock TB18DC, 

I think I have tried everything. Recently, after a reset, it did not display a drive I added over a year ago as storage. Today I took it out to test it (Kingston SKC2500M8).

Intel(R) Core(TM) i7-8850H CPU @ 2.60GHz 2.59 GHz
RAM 64GB
NVidia Quadro P5200 (16GB)

I haven't worked on this machine for over six months because it drives me crazy  

I attach the last two dumps

https://1drv.ms/u/s!ArznwGrpb_wEgdlmTUR5OgXvy0B67Q?e=aRYwPg

https://1drv.ms/u/s!ArznwGrpb_wEgdlnwDqScVwRxI0saQ?e=aTaATg

Thanks for any advice !

J.J.