Only one SSD 950 PRO NVMe 512GB in Clevo P651RG ?

Hi guys.

New user in here and a new user of Clevo laptop.

Just got a Clevo P651RG laptop spec:

I7 6700HQ
GT 970M 6GB G-sync
32GB Hyper X 2133Mhz
Samsung 950 Pro NVMe 512gb
Samsung Evo 850 250 SSD
WD 1TB HDD
Windows 10

Is it true that the one 950 Pro NVMe ssd take up all pci lanes, so I can´t put in another one?
Have another 950 Pro, but it will not work.
if thats true, can a use a normal m.2 ssd thats not PCI or?

hope you can read it, im from Denmark.

Thx.