ROG STRIX Z690-E GAMING WIFI PCI x8 x16

[_SKiDRoW_]

Hi!

I have an issue with the bandwidth of the PCI lane on my motherboard, it is a z690 as it says in the title, and the GPU is a RTX 3060Ti
Well the issue is that GPU-Z says the bandwidth is x8 insted of x16, no matter what I do (start render test) here is some snapshoots





GPU is in the first PCI x16 lane, and I have a soundcard (soundblaster zx) in the second PCI x16 slot, because it doesn't fit in the x1 PCI.

Could it be that the soundcard interferes with the bus?
Is there something in the BIOS to change that i'm missing?

Thanks!

[Shark007]

The moment you use any other PCIe x16 slot (your soundcard in this case)
The #1 slot drops to x8

[_SKiDRoW_]

Shark007 wrote:
The moment you use any other PCIe x16 slot (your soundcard in this case)
The #1 slot drops to x8

Is there any way to change this from BIOS? or another solution?

Edit: I just took out the soundcard and keep saying the same thing (x8), and even try to run red dead redemption 2, still no change.
Maybe is just the gpu-z reporting it wrong?
thoughts?

[RogScott]

Do you have an M.2 drive in the top bay (M.2_1)? It shares lanes with the top PCIE slot (the GPU slot), so putting an M.2 drive in M.2_1 will also drop the gpu slot to x8. M.2_2 and M.2_3 can be used without impacting the top PCIE slot, as can the HyperM.2 Card in the bottom slot.

GPU_Z reports fine for me. I have a 3090 in the top PCIE slot, Samsung 980 Pro nvme drives in M.2_2 and M.2_3, and the HyperM.2 Card in the bottom slot currently with (1) Samsung Pro nvme. GPU-Z shows x16 for my 3090 when rendering.

[_SKiDRoW_]

RogScott wrote:
Do you have an M.2 drive in the top bay (M.2_1)? It shares lanes with the top PCIE slot (the GPU slot), so putting an M.2 drive in M.2_1 will also drop the gpu slot to x8. M.2_2 and M.2_3 can be used without impacting the top PCIE slot, as can the HyperM.2 Card in the bottom slot.

GPU_Z reports fine for me. I have a 3090 in the top PCIE slot, Samsung 980 Pro nvme drives in M.2_2 and M.2_3, and the HyperM.2 Card in the bottom slot currently with (1) Samsung Pro nvme. GPU-Z shows x16 for my 3090 when rendering.

Yes, I have an m.2 drive in the top bay. I will try to change it tomorrow.
Thanks for the reply!