a special system setup fails: 2 different NVMe system drives together

[shadtal]

Hello all

i'm trying to get thisspecial kind of system setup:
2 different NVMe system drives, that occasionally i'll take one of them out of the pc, pysycally, while at this time, the pc will boot from the other system drive.

I bought this PCI to NVMe adapter: http://aliexpress.com/item/4000067896183.html?spm=a2g0s.9042311.0.0.71c24c4dSm2ZYv

Whenever an ssd drive is connected through the pci adapter -the operation system cannot load. most of the times it resets the pc right after windows's welcome screen.
Also, when trying to install a fresh install of windows to the ssd drive while it's connected through the pci adapter, it resets on the installion process.

I tried to install windows on the same ssd drive while the ssd connected directly to the mother board, without the pci adapter. this is the only way i can install windows.

the same ssd drive works perfectly while connected directly to the mother board.

Is it a faulty adapter? or is there some setting i can change?

videos:
Reset while loging in to windows:
http://telavivinf.com/temp/reset while log on with PCI to NVMe adapter.mp4
Reset while installing windows:
http://telavivinf.com/temp/reset while install windows with PCI to NVMe adapter.mp4

thanks all!

 

[Bighorn]

https://www.tenforums.com/drivers-hardware/173754-my-unusual-setup-fails-2-different-nvme-system-drives.html

It is confusing to me that some of the PCIe 'lanes' on the motherboard seem to be shared with other devices such as the SATA ports and M.2/NvME and can make it difficult to set up as desired, getting the right combination.