Asus Maximus VI Extreme PCIe lane question

[Ayy-lmao]

Hi there,

 

Currently I'm running a i7 4770k on an Asus Maximus VI Extreme (Z87) with a gtx 1060 3gb running at PCIe 3.0 x16 native in the 1st slot of the motherboard (top)

 

I wanted to ask how my current PCIe usage would change if I added a x4 PCIe 3.0 M.2 NVMe SSD adapter (with a gen4 ssd) to my mobo.

 

From the documentation of the mobo, I concluded that if I add any other PCIe card regardless of lane size it would limit the 1st slot to x8. (unless It only applies to SLI etc, I'm not sure)

Let me include the documentation here:

EDIT (Also): 

Thing is I already used to use a PCIe Asus soundcard along with my old 780ti on this mobo without issue, but I seem to remember the GPU running at x16 even while using both.

 

My question is, If I use a x4 PCIe 3.0 M.2 NVMe adapter card with a gen 4 ssd (2TB samsung 980 pro [yes, overkill but I plan to use it when I upgrade]) in any 3.0 slot, will it limit my GPU to x8 in which case there will be x4 unused?
And also even if that is the case, would it truly impact gameplay concidering it's not the highest end card?

 

EDIT (Clarity):

GPU is using slot 1( PCIe 3.0/2.0_x16/x8_1)

Soundcard from example was using slot 5 (PCIe 2.0/1.1 x4_1)

 

Thank you in advance

[Zando_]

48 minutes ago, Ayy-lmao said:

My question is, If I use a x4 PCIe 3.0 M.2 NVMe adapter card with a gen 4 ssd (2TB samsung 980 pro [yes, overkill but I plan to use it when I upgrade]) in any 3.0 slot, will it limit my GPU to x8 in which case there will be x4 unused?

Yes. 

48 minutes ago, Ayy-lmao said:

And also even if that is the case, would it truly impact gameplay concidering it's not the highest end card?

No. The 1080 has no issue with x8: 

So the 1060 3GB would be fine. 

[Ayy-lmao]

5 hours ago, Zando_ said:

Yes. 

No. The 1080 has no issue with x8: 

So the 1060 3GB would be fine. 

Thank you!